Physician Assistant (Dermatology)
In-network · UnitedHealthcare
Accepting new patientsExpertise in rash + 3 more
315 verified UnitedHealthcare Dermatologists in Lawrenceville, GA
Zocdoc verifies all providers before they can appear in Zocdoc search results. Every provider that appears in search is open to new patients.
In-network providers
Availability last updated 09/30/2026
Availability last updated 09/30/2026
54.5 mi · 1046 Salem Walk Dr, Greensboro, GA 30642
Nurse Practitioner (Dermatology)
5.00
·27 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute skin infection + 1 more ·
Read bio
Brandilyn K. Johnson, MSN, NP-C is a board-certified family nurse practitioner who specializes in Dermatology with vast professional experience in the realm of healthcare. A Mobile, Alabama native, Brandilyn obtained her Bachelor of Science in nursing from the University of South Alabama before goin...Click to read more
Physician Assistant (Dermatology)
4.83
·47 reviews
Extremely knowledgeable and very clean office. Highly recommend - Jun 25, 2024 by Jonathan P.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 2 more ·
Read bio
Sarah E. Riley, PA-C, is a native of Marietta, Georgia. She moved to Athens to attend the University of Georgia where she received her Bachelor of Science as a biology major. She returned to Marietta and discovered her passion for dermatology while working at Skin Cancer Specialists, P.C. & Aestheti...Click to read more
Physician Assistant (Dermatology)
4.73
·30 reviews
Never saw the doctor. Left office after waiting 40 minutes in the waiting room. - May 7, 2024 by Demetria P.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Lauren Fisher, PA-C is a certified physician assistant and senior cosmetic laser practitioner with over a decade of experience in the field of dermatology. Lauren completed her undergraduate studies at the University of Georgia where she earned her bachelor’s degree in biology in 2005. She then atte...Click to read more
Physician Assistant (Dermatology)
5.00
·41 reviews
Very friendly staff! Was able to get everything done that I wanted. I highly recommend - Jan 27, 2025 by Katherine E.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 1 more ·
Read bio
Arthur T. Hudson, PA-C, M.P.A.S., grew up in the small town of Dublin, Georgia. He graduated from the University of Georgia with a Bachelor of Science degree in Exercise and Sports Science. After college, Arthur attended Augusta University (formerly the Medical College of Georgia), where he earned a...Click to read more
Physician Assistant (Dermatology)
4.92
·77 reviews
Dr. Freeman and staff were amazing. Professional, kind, and overall incredible experience. Highly recommend! - Jul 24, 2025 by Ashley R.Click to read more
In-network · UnitedHealthcare
Accepting new patients · 24 years of experience · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 1 more ·
Read bio
Garrett D. Freeman, PA-C, grew up in Savannah, Georgia. He earned his undergraduate degree at the University of Florida and chose to remain there to pursue a Master's in Physician Assistant Studies (MPAS) at the University of Florida College of Medicine, receiving his MPAS in June 2002.
After compl...Click to read more
Physician Assistant (Dermatology)
5.00
·44 reviews
Great first impression - Apr 24, 2024 by Sandra S.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 1 more ·
Read bio
Rhea Douglas, PA-C grew up in Richmond, VA. She received her undergraduate degree in Biology at the University of Virginia (UVA). After working in the pharmaceutical industry for Pfizer, she moved to Atlanta and earned her Master’s degree in Professional Counseling from Georgia State University. She...Click to read more
Physician Assistant (Dermatology)
4.88
·60 reviews
Dr. Ashley is the best! Very thorough and caring. - Oct 25, 2024 by Lynn P.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in psoriasis + 2 more ·
Read bio
Ashley M. Ades, PA- C grew up in Marietta, Georgia. After receiving her bachelor’s degree in international business from the University of Georgia, she worked at Children’s Healthcare of Atlanta before studying at the University of Alabama – Birmingham. There, she earned her Master of Science degree...Click to read more
Physician Assistant (Dermatology)
4.87
·30 reviews
Friendly, office was clean, booking was easy, little to no wait time, and left with a plan - Sep 30, 2025 by Perry P.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Karin Fuller, PA-C grew up in New Site, Alabama. She graduated from Auburn University with a bachelor’s degree in General Science Education and Biological Sciences. Karin spent over a decade teaching high school Biology, while simultaneously earning a master’s degree in General Science Education. He...Click to read more
Physician Assistant (Dermatology)
4.87
·31 reviews
Very friendly and knowledgeable.would highly recommend. - Apr 9, 2025 by Travis K.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Jenise M. Santos, PA-C, is a native of Columbus, Georgia. She attended Columbus State University, where she earned a Bachelor of Science degree as a biology major. After completing her undergraduate studies, she moved to Augusta to attend Augusta University (formerly Medical College of Georgia), whe...Click to read more
Physician Assistant (Dermatology)
5.00
·31 reviews
Excellent provider - very personable, thorough and explained things well! - Dec 4, 2024 by Barbara P.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute skin infection + 1 more ·
Read bio
Erin A. Barnett, MMS, PA-C, graduated from the Georgia Institute of Technology in 2001 with a Bachelor’s degree in Biology. She then pursued her post-graduate education at Midwestern University in Glendale, Arizona, where she earned her Master of Medical Science in Physician Assistant Studies in 200...Click to read more
Physician Assistant (Dermatology)
5.00
·31 reviews
Great “bed side manner”.
Listened.
Recommended. - Jan 15, 2026 by Carol T.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Carolyn M. Sims, PA-C grew up in Monroe, New York and later moved to Boca Raton, Florida. She received her undergraduate degree in Microbiology with a minor in Chemistry at the University of Florida. After college, Carolyn moved to Atlanta, Georgia to pursue her graduate studies at Emory University....Click to read more
Physician Assistant (Dermatology)
4.89
·37 reviews
Easily seen by provider, courteous staff, very knowledgeable regarding issues presented. - Jun 4, 2024 by Danny M.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute skin infection + 3 more ·
Read bio
Brittany Renfroe, PA-C, grew up in the rural town of Vidalia, Georgia. She moved to Macon to attend Mercer University, where she earned her Bachelor's Degree in Biology. She continued her education at Mercer University's Atlanta Campus, obtaining her Master of Medical Science in 2011.
After graduat...Click to read more
Physician Assistant (Dermatology)
4.92
·48 reviews
Great experience from start to finish! - Oct 22, 2024 by Michael C.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in benign or precancerous skin growths + 2 more ·
Read bio
A. Fair Franklin, PA-C is a native Georgian who grew up in Atlanta. She received her undergraduate training in Biology with a minor in International Business at Georgia State University. After college, Fair moved to Augusta, Georgia to pursue her degree in Medical Science from the Medical College of...Click to read more
Physician Assistant (Dermatology)
4.90
·50 reviews
My visit was great. They were very professional and courteous and felt absolutely comfortable. - Aug 19, 2024 by Otis D.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Zachary C.F. DelConte, PA-C grew up on a small vegetable farm in Syracuse, New York, before relocating to Chapel Hill, North Carolina. He earned a Bachelor of Arts in Biology from the University of North Carolina at Chapel Hill. Zachary has always valued serving local communities through medical vol...Click to read more
Nurse Practitioner (Dermatology)
4.87
·30 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in psoriasis + 2 more ·
Read bio
Karen Penrose is a Dermatology Certified Nurse Practitioner who has lived in south Georgia her entire life. She began her nursing career as an Armstrong College graduate in 1991 with experiences in emergency and cardiac nursing. Karen desired to further her education and returned to school, graduati...Click to read more
Physician Assistant (Dermatology)
In-network · UnitedHealthcare
Accepting new patientsExpertise in acute skin infection + 1 more
Dermatologist
In-network · UnitedHealthcare
Accepting new patients · Expertise in acute skin infection + 2 more ·
Read bio
Dr. Sarah Wilson is a dual board-certified and dual fellowship-trained cosmetic dermatologist and Mohs surgeon. She is honored to be a part of the Newnan community and to offer surgical and cosmetic services for the patients at Newnan Dermatology. She has a passion for all things skin and is committ...Click to read more
Physician Assistant (Dermatology)
4.97
·30 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in benign or precancerous skin growths + 1 more ·
Read bio
Melissa Cannon is a NCCPA board certified physician assistant. She received her Bachelor of Science from Western Kentucky University and then went on to graduate Magna Cum Laude with her MSPAS from the University of Alabama at Birmingham in 2010. Melissa worked in internal medicine for four years be...Click to read more
Physician Assistant (Dermatology)
In-network · UnitedHealthcare
Accepting new patientsExpertise in benign or precancerous skin growths + 2 more
Physician Assistant (Dermatology)
In-network · UnitedHealthcare
Accepting new patientsExpertise in benign or precancerous skin growths + 2 more
Physician Assistant (Dermatology)
4.97
·30 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in acute skin infection + 1 more ·
Read bio
Chris Brune was born in the little apple (Manhattan, Kansas) and grew up in Virginia. He graduated from the United States Merchant Marine Academy in June 2005 with a Bachelor of Science in Logistics and Supply Chain Mgmt. After working all over the globe in the oil industry and serving as the medica...Click to read more
Dermatologist (Virtual)
4.75
·549 reviews
Friendly and efficient staff. Prepared for my arrival, no waiting time, quick but thorough exam. Perfect! - Jul 20, 2022 by David S.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Offers video visits · Highly recommended · Excellent wait time · Expertise in rash + 2 more ·
Read bio
Jack Cossman, MD is a board-certified dermatologist who enjoys meeting and treating patients of all ages and skin types. In particular, Dr. Cossman treats acne and acne scarring, hair loss and hair removal, psoriasis, skin cancers, warts, as well as facial aesthetics with neurotoxins, fillers, chemi...Click to read more
Dermatologist
4.88
·144 reviews
Dr. Kenyatta was knowledgeable and professional. She acted swiftly and thoroughly explained my options for treatment. - Nov 7, 2024 by Gina W.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 1 more ·
Read bio
Dr. Kenyatta Mireku is a graduate of Georgia State University with a bachelor’s degree in Biology. She received her Medical Degree from the Medical College of Georgia, where she was elected to the Alpha Omega Alpha Honor Medical Society. She went on to complete her residency in dermatology at Virgin...Click to read more
Next available: today
Dermatologist
4.88
·80 reviews
I went for an overall check and to investigate a specific spot I had concerns about. The doctor was great, knowledgeable, and communicative. - Dec 3, 2024 by Anna-marie T.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute skin infection + 2 more ·
Read bio
Dr. Jodi Langer is a graduate of Northwestern University with a BA in Cognitive Neuroscience. She received her Medical Degree at Drexel University where she was the top graduating medical student. Dr. Langer then went on to serve as Chief Resident during her dermatology residency at New York Medical...Click to read more
Next available: tomorrow
Dermatologist
4.68
·81 reviews
Excellent service and yes I have a follow up appointment! - Sep 16, 2025 by Sandra S.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Excellent wait time ·
Read bio
Dr. Charya B. Goldsmith is a board certified dermatologist, specializing in general, surgical, and cosmetic dermatology. Dr. Goldsmith graduated Phi Beta Kappa from The University of Georgia’s Honors Program on full academic scholarship with highest honors, as a triple major in Genetics, Biology, an...Click to read more
Next available: tomorrow
Dermatologist
4.68
·346 reviews
Dr. Moody and his team are wonderful. They got us in and out quickly and made our daughter very comfortable. - Oct 15, 2018 by Shana G.Click to read more
In-network · UnitedHealthcare
Accepting new patients · 25+ years of experience ·
Read bio
At Southern Dermatology, P.C., we are dedicated to providing the latest and most effective advances to deliver the skin care you desire. When you visit us, you’ll experience the warmth of being around family.
Our professional and personable staff is committed to guiding you through a step-by-step p...Click to read more
Next available: today
Physician Assistant (Dermatology)
4.99
·78 reviews
Kaitlyn was awesome; very caring and great listener - Oct 21, 2025 by Mary W.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute skin infection ·
Read bio
Kaitlyn combines her expertise and compassion to diagnose and provide comprehensive treatment for a vast array of medical dermatologic conditions including acne, psoriasis, eczema, rosacea and skin cancer, to her patients who range in age from infants to geriatrics. She graduated with a Bachelors of...Click to read more
Next available: today
Physician Assistant (Dermatology)
4.69
·51 reviews
The assistant was wonderful but what was a bit off putting is that the doctor (or NP) came in, put gloves on, looked at my leg and said it's eczema and said order steroids and left. She may have looked at me for 20 seconds. I realize she is a pro at this point but a little attention to her patient...Click to read more
In-network · UnitedHealthcare
Accepting new patients · Expertise in acute skin infection + 1 more ·
Read bio
Noel Ferrer is a board certified Physician Assistant with medical, surgical and cosmetic dermatology experience.
Noel graduated from The University of Florida with a B.S. in Science and Health Education with Cum Laude honor. She then earned her Masters in Clinical Medical Science and Physician Assi...Click to read more
Next available: today
Physician Assistant (Dermatology)
4.92
·53 reviews
I would highly recommend to visit your advanced dermatology facility. - Oct 18, 2024 by Henry C.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute skin infection + 1 more ·
Read bio
Emily has completed the Society of Dermatology Physician Assistants (SDPA) Distance Learning Initiative (DLI) in dermatology. Supervision by a board certified dermatologist along with completion of the rigorous DLI will award the prestigious title of SDPA Diplomate. The title of SDPA Diplomate is a ...Click to read more
Next available: tomorrow
Physician Assistant (Dermatology)
4.81
·42 reviews
Ms.Pam and the nurse Thank you so much for except of me sorry I was crying and the nurse to sorry but the best you all made me feel like a family you all understand what I was feeling ?? I came home explaining my husband how wonderful you were I pray for all of yours and be blessed from God sorry I ...Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Expertise in rash + 1 more ·
Read bio
Pam attended Spring Hill College in Mobile, Alabama and received a BS in Biology. Following graduation she worked for a short time as a research assistant in the Department of Physiology at the University of South Alabama before moving to Atlanta. She completed her training at Emory University Schoo...Click to read more
Next available: tomorrow
Physician Assistant (Dermatology)
4.87
·60 reviews
Third appointment here treating my molluscum with cryosurgery, she is straight forward and listens and I get seen so quickly! I recommend.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Sharon Staruch-Christopher is a certified physician assistant specializing in both medical and cosmetic dermatology. Sharon brings over 33 years of physician assistant experience and her diverse medical background is an asset to our Advanced Dermatology team. She began her career in cardio thoracic ...Click to read more
Next available: tomorrow
Dermatologist
4.70
·30 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Dr. Ismail is a native of Birmingham, Alabama. She earned her medical degree from the University of Alabama at Birmingham. She then moved to Atlanta to complete her residency in Dermatology at Emory University. Dr. Ismail is also a diplomat of the American Board of Dermatology and has authored multi...Click to read more
Next available: Tue, Oct 6
Dermatologist
4.87
·30 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Dr. Sabini founded North Atlanta Dermatology in 1998 her vision was to create a Dermatology practice where patients would be treated like family. She has been committed to this ideal from day one. She has been recognized as a Top Doctor in the U.S. and locally as well. Although born and raised in Ne...Click to read more
Next available: tomorrow
Dermatologist
4.88
·80 reviews
I went for an overall check and to investigate a specific spot I had concerns about. The doctor was great, knowledgeable, and communicative. - Dec 3, 2024 by Anna-marie T.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in acute skin infection + 2 more ·
Read bio
Dr. Jodi Langer is a graduate of Northwestern University with a BA in Cognitive Neuroscience. She received her Medical Degree at Drexel University where she was the top graduating medical student. Dr. Langer then went on to serve as Chief Resident during her dermatology residency at New York Medical...Click to read more
Next available: Wed, Oct 7
Dermatologist
4.88
·144 reviews
Dr. Kenyatta was knowledgeable and professional. She acted swiftly and thoroughly explained my options for treatment. - Nov 7, 2024 by Gina W.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 1 more ·
Read bio
Dr. Kenyatta Mireku is a graduate of Georgia State University with a bachelor’s degree in Biology. She received her Medical Degree from the Medical College of Georgia, where she was elected to the Alpha Omega Alpha Honor Medical Society. She went on to complete her residency in dermatology at Virgin...Click to read more
Next available: Tue, Oct 13
Family Nurse Practitioner
4.89
·165 reviews
I love express clinic Dr. Judith is a great nurse she listen to you and make sure you get the best care - Jan 13, 2025 by Charlesetta W.Click to read more
In-network · UnitedHealthcare
Also offers video visits · Accepting new patients · Highly recommended
Next available: today
Dermatologist
4.86
·745 reviews
Their whole staff is amazing. I have already recommended Dr Goodman to 2 people. - Nov 15, 2011 by Cori T.Click to read more
In-network · UnitedHealthcare
Accepting new patients · 22 years of experience · Highly recommended · Excellent wait time · Expertise in benign or precancerous skin growths + 3 more ·
Read bio
All patients will be evaluated and treated by Dr. Marcus Goodman and/or his associate physicians. Dr. Goodman is a Board-Certified Dermatologist. He completed his undergraduate studies at The Ohio State University in Columbus, OH, and earned his Doctor of Osteopathic Medicine degree from Midwestern ...Click to read more
Next available: Tue, Oct 13
Physician Assistant (Dermatology)
5.00
·3 reviewsIn-network · UnitedHealthcare
Accepting new patients · Highly recommended ·
Read bio
Thomas Hynes, PA‑C, is a board‑certified Physician Assistant committed to delivering exceptional, patient‑centered dermatologic care. He completed his Physician Assistant training in Albany, New York, before moving to California, where he received extensive training in medical dermatology.
Thomas’s...Click to read more
Next available: today
Physician Assistant (Dermatology)
4.87
·60 reviews
Third appointment here treating my molluscum with cryosurgery, she is straight forward and listens and I get seen so quickly! I recommend.Click to read more
In-network · UnitedHealthcare
Accepting new patients · Highly recommended · Excellent wait time ·
Read bio
Sharon Staruch-Christopher is a certified physician assistant specializing in both medical and cosmetic dermatology. Sharon brings over 33 years of physician assistant experience and her diverse medical background is an asset to our Advanced Dermatology team. She began her career in cardio thoracic ...Click to read more
Next available: today
1-3 days
Average time it takes to be seen by a provider
100k
Verified providers with a 4.8 average rating
15+ years
In the business of finding quality care for patients
Patients trust Zocdoc
So easy to schedule an appointment with my doctor through Zocdoc. I only schedule visits through the Zocdoc platform now.
Lisa R
Easy same day appointment and was able to pick up my prescription within an hour of finishing my visit. Highly recommend
Jordan M
Zocdoc is great! Please consider using this you won't regret it. I was very, very pleased with my visit my future PCP was great!
Tracy S
How can I make a same-day appointment with a Dermatologist in Lawrenceville who takes UnitedHealthcare insurance?
On average, patients who use Zocdoc can search for a Dermatologist in Lawrenceville who takes UnitedHealthcare insurance, book an appointment, and see the Dermatologist within 24 hours. Same-day appointments are often available, you can search for real-time availability of Dermatologists in Lawrenceville who accept UnitedHealthcare insurance and make an appointment online.
How can I find a Dermatologist in Lawrenceville who takes UnitedHealthcare?
Zocdoc lets you search specifically for a Dermatologist in Lawrenceville who takes UnitedHealthcare. Just choose your carrier and plan from the drop-down menu at the top of the page. If you’re not sure which plan you have, you can use Zocdoc’s insurance checker to find out.
How can I book an appointment online with a UnitedHealthcare Dermatologist in Lawrenceville?
Zocdoc is a free online service that helps patients find UnitedHealthcare Dermatologists in Lawrenceville and book appointments instantly. You can search for UnitedHealthcare Dermatologists in Lawrenceville by symptom or visit reason. Based on that information, you’ll see a list of providers who meet your search criteria, along with their available appointment slots.
How can I find a female Dermatologist in Lawrenceville who takes UnitedHealthcare insurance?
When you search for UnitedHealthcare Dermatologists in Lawrenceville on Zocdoc, you can filter your results by gender, in addition to other criteria. That way, you’ll only see UnitedHealthcare Dermatologists in Lawrenceville who match your preferences.
How can I find a UnitedHealthcare Dermatologist in Lawrenceville who sees patients after hours?
On Zocdoc, you can search specifically for UnitedHealthcare Dermatologists in Lawrenceville with availability after 5 p.m.
How can I find a top-rated UnitedHealthcare Dermatologist in Lawrenceville?
You can use Zocdoc to find UnitedHealthcare Dermatologists in Lawrenceville who are highly rated by other patients. These ratings are based on verified reviews submitted by real patients. Every time a patient completes an appointment booked on Zocdoc, they’re invited to review their experience. Each review must comply with Zocdoc’s guidelines.
How can I find a video visit with a Dermatologist online in Lawrenceville?
Dermatologists in Lawrenceville on Zocdoc who see patients through online video visits will have a purple video icon on their profiles. You can also filter your search results to show only Dermatologists who offer video visits.
Are video visits with a Dermatologist online covered by UnitedHealthcare?
Most insurers provide coverage for video visits at the same cost as in-person visits. You can search on Zocdoc specifically for Dermatologists in Lawrenceville who accept UnitedHealthcare for video visits by selecting your carrier and plan from the drop-down menu at the top of the page. We recommend you check with your insurance carrier directly to confirm your coverage and out of pocket costs for video visits.
How can I find a UnitedHealthcare Dermatologist in Lawrenceville who sees patients in the morning or evening?
Zocdoc lets you search specifically for a Dermatologist who has appointments available before 10:00 am, or after 5:00 pm. Just choose the special hours filter at the top of our search page.
How can I find a UnitedHealthcare Dermatologist in Lawrenceville who sees patients during the weekend?
Zocdoc let's you see real-time availability for UnitedHealthcare Dermatologists in Lawrenceville. Many UnitedHealthcare Dermatologists offer appointments on Saturdays and Sundays.