About Kimberly McCosker
Kimberly McCosker, PA-C is a licensed and nationally certified physician assistant with the Schweiger Dermatology Group.
Kimberly graduated magna cum laude from Stony Brook University where she earned her Bachelor of Science in Respiratory Care. She worked at NYU Langone Medical Center in neonatal and adult ICU’s before pursuing her graduate degree. Furthering her medical education, Kimberly earned a Master of Science in Physician Assistant Studies at Stony Brook University. She then completed a dermatology fellowship at Schweiger Dermatology Group, where she trained alongside top dermatology providers in medical, cosmetic and surgical dermatology. Her extensive education makes her a highly dependable and effective healthcare provider. Kimberly prides herself in a patient centered approach and attention to detail in order to provide top quality patient care.
Experience
- Certified Physician Assistant, NCCPA
- Otolaryngology and Head and Neck Surgery Physician Assistant, Stony Brook Medicine
- Completed Advanced Practice Provider Fellowship Program, Schweiger Dermatology Group
- Additional elective surgical dermatology focused training
Specialties: Medical Dermatology, Cosmetic Dermatology, Surgical Dermatology
Credentials
- B.S. in Health Sciences, Concentration in Public Health, Stony Brook University
- B.S. in Respiratory Care, Stony Brook University
- M.S. in Physician Assistant Studies, Stony Brook University
- Member of the American Academy of Physician Assistants
- Member of the Society of Dermatology Physician Assistants
- Member of the National Psoriasis Foundation
In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
UnitedHealthcare Oxford
Practice
Schweiger Dermatology Group
Schweiger Dermatology, founded by Eric S. Schweiger, M.D., a Board Certified Manhattan dermatologist, is a state of the art dermatology facility that uses cutting edge medical technology and procedures to effectively treat a multitude of skin disorders. Common skin problems treated include acne, eczema, hair loss, psoriasis, rosacea, skin cancer and warts.Office location
Education and background
Board certifications
- National Commission on Certification of Physician Assistants
Education and training
- State University of New York, Stony Brook, Master's in Physician Assistant Studies
- State University of New York, Stony Brook (Bachelor's)
Languages spoken
- English
Provider's gender
Female
NPI number
1144861345
Patient reviews
Overall rating
4.94
Wait time
4.86
Bedside manner
4.97
Your trust matters. All reviews have been submitted by verified patients after seeing the provider. Any content containing private health information is not published.
820 reviews
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Fabulous experience! Quick, efficient and informative! Kimberly McCosker was wonderful. Highly recommend!
January 21, 2026Donna M.Verified patient
The office was organized and very clean; staff was professional and friendly; my PA listened to me and gave good information
July 16, 2025Elizabeth Z.Verified patient
Kimberly has taken excellent care of my skin issues for years and I highly recommend her and the team!
Less than 3 months agoJames M.Verified patient
Everything was perfect. Fast wait time. Clean new office. Highly recommended and will be back for all my dermatology needs
June 6, 2025Andrew D.Verified patient
Absolutely fantastic experience with this office. Very happy with all aspects and will be recommending to friends and family.
More than 1 year agoJennifer D.Verified patient
The office was spotless, the staff were very friendly and Kimberly was wonderful. This is my my dermatology office!
July 9, 2025Eilene T.Verified patient
PA-Kim is the best! She communicates treatment plan great, and takes her time, does not rush.
January 6, 2026Monica G.Verified patient
This was the third time I saw Kim. She explained what was happening and answered all of my questions.
Less than 1 year agoInitials hidden
Great experience either way the doctor, she was very friendly and knowledgeable
February 22, 2026Sandra D.Verified patient
Super professional and engaging. Clear explanation of examination and what next steps, if any, would be.
May 21, 2025Peter F.Verified patient
Kimberly is a true professional, great communicator and always positive! You are in lucky to have such a person on staff!
September 20, 2024James M.Verified patient
Everybody in the office was extremely friendly, professional and personable! I would highly recommend their group to anyone.
June 25, 2024Laura K.Verified patient
I cannot say enough good things about this office the people just amazing .Extremely Friendly and professional
More than 1 year agoInitials hidden
She was very knowledgeable and friendly. Gave me all the options with no pressure. I felt very comfortable.
January 29, 2025Kristen T.Verified patient
Highly recommended! All of the staff was great and extremely friendly. Will be going back for any future needs!
November 12, 2024James S.Verified patient
We were seen promptly. She was thorough and was able to quickly diagnose his issue. She is also very friendly and pleasant.
November 7, 2023Initials hidden
Quick and effective solution to my acne! Would 100% recommend. Very friendly and professional staff.
April 1, 2025Desmond C.Verified patient
Very friendly and talked to me like a real person. Would highly recommend.
Less than 6 months agoInitials hidden
a beautiful brand new practice in the heart of Patchogue Village. Kind staff, very thorough and I highly recommend.
January 2, 2024Colleen M W.Verified patient
Absolutely the best experience with Kimberly! Great bedside manner and very knowledgeable. 10/10 recommend!!
September 16, 2024Cecelia E.Verified patient
Excellent experience with the entire team from intake through the examination. I would recommend their services.
March 4, 2024Suzanne B.Verified patient
Easy appointment booking and doctor was wonderful . Will definitely be going back
July 29, 2025Heidi S.Verified patient
First dermatology appointment ever— left feeling comfortable and pleased to have been well informed and heard.
More than 1 year agoInitials hidden
Kim was very knowledgeable and communicated well with myself and my teen. My daughter left feeling very comfortable.
October 22, 2022Initials hidden
I felt very comfortable here. Everyone was very nice and respectful. The office was very clean.
September 17, 2024Greg P.Verified patient
Everyone I encountered during my visit was very friendly and professional. I recommend them highly.
July 9, 2024Winifred O.Verified patient
Kimberly is always excellent and knowledgeable and has an excellent bedside manner.
March 26, 2025Anthony D.Verified patient
Very understanding that I forgot my wallet and was still able to be seen. Very nice. No wait time.
June 21, 2024Laura O.Verified patient
Very reassuring and knowledgeable! I would highly recommend her as a practitioner.
April 17, 2025Nicole P.Verified patient
Kimberly McCosker was amazing!! Friendly, kind, funny!! Office staff was kind, helpful and pleasant!
March 5, 2024Initials hidden
Very nice and professional staff and an excellent experience overall.
August 13, 2025Janet L.Verified patient
Felt all my concerns were addressed right away! Already starting medication to help my hormonal acne.
March 2, 2024Katarina O.Verified patient
Very thorough. Walked me through the whole process as it was happening. Seen right away.
December 17, 2024Glenn T.Verified patient
Kimberly was great! Very personable and explained everything she was doing and what to look out for.
March 2, 2024Kristine G.Verified patient
it was very nice, she went over all the information with me and she was very helpful
January 10, 2025Yurileicis J.Verified patient
Excellent care from Kimberly and her support team!
Highly recommend this team if you need dermatology care.
August 5, 2022James M.Verified patient
Friendly and professional. Very clean offices and treatment rooms.
Less than 1 year agoInitials hidden
Very friendly staff. They explained everything and said any questions please call or come back
June 4, 2024Laurie L.Verified patient
Provider & Staff are very pleasant and thorough and make you feel very comfortable
January 8, 2025Initials hidden
The doctor was kind and personable.
Addressed all my concerns .
September 5, 2025Initials hidden
Great office! Super clean and neat! The PA was super helpful and walked me through every step.
March 28, 2024Joseph M.Verified patient
So accommodating, friendly, knowledgeable, and professional!
August 29, 2025Jennifer C.Verified patient
clean, efficient, proffessinal and liked Dr McCosker very much. I booked a 2nd appointment for 9/21/22
September 18, 2022Deirdre C.Verified patient
Thorough, knowledgeable and clear about treatment and options moving forward.
November 22, 2024Matthew K.Verified patient
Kim is so friendly and down to earth! Listens and explains clearly. Glad I came here.
June 3, 2024Caitlin A.Verified patient
Easy paperwork. Quick and attentive frontdeso as well as Medical assistant and PA.
More than 1 year agoInitials hidden
Very positive experience! Very good bedside manner with expertise and knowledge- will be going back .
January 6, 2022Initials hidden
Love going here! Super clean, friendly, and quick! Highly recommend
April 10, 2025Joseph M.Verified patient
Quick and easy Kimberly great in and out before I knew it
July 23, 2025Mark P.Verified patient
So glad I found this Dr so easily with ZocDoc and I was able to get in so quickly!
June 26, 2024Cecelia E.Verified patient
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