“My experience was very good and the doctor was great and will be my new doctor I would recommend to all”
Carlos B.March 18, 2026
“Great experience with the Dr. and his staff about a 5min wait and the office was clean and welcoming.”
Kevin P.January 6, 2026
About Dr. Jeffrey Karwoski
Jeffrey Karwoski, MD is board-certified in internal medicine and focused on primary care at Optum. He completed his residency in internal medicine at the University of Connecticut after completing medical school at Ross University. Prior to starting medical school, he completed a Master of Science in biotechnology at Johns Hopkins University and Bachelor of Science in biochemistry and molecular biology at Penn State University. He is married with three daughters.
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In-network insurances
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Aetna
BlueCross BlueShield
Cigna
Emblem Health
UnitedHealthcare
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200+ more in-network plans
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Medical School - Ross University School of Medicine, Doctor of Medicine
University of Connecticut, Residency in Internal Medicine
Johns Hopkins University, Master's in Biotechnology
Pennsylvania State University (Bachelor's)
University of Connecticut (Internship)
University of Connecticut (Fellowship)
Awards and publications
Laird MW, Zukauskas D, Johnson K, Sampey GC, Olsen H, Garcia A, Karwoski JD, Cooksey BA, Choi GH, Askins J, Tsai A, Pierre J, Gwinn W. Production and purification of Bacillus anthracis protective antigen from Escherichia coli. Protein Expr Purif. 2004 Nov; 38 (1): 145-52
Cooksey BA, Sampey GC, Pierre JL, Zhang X, Karwoski JD, Choi GH, Laird MW. Production of biologically active Bacillus anthracis edema factor in Escherichia coli. Biotechnol Prog. 2004 Nov-Dec; 20 (6): 1651-9.
Laird MW, Sampey GC, Johnson K, Zukauskas D, Pierre J, Hong JS, Cooksey BA, Li Y, Galperina O, Karwoski JD, Burke RN. Optimization of BLyS production and purification from Escherichia coli. Protein Expr Purif. 2005 Feb; 39 (2): 237-46
Languages spoken
English
Provider's gender
Male
NPI number
1023245008
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.90
Wait time
4.73
Bedside manner
4.92
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
240 reviews
Most relevant
My experience was very good and the doctor was great and will be my new doctor I would recommend to all
March 18, 2026Carlos B.Verified patient
I had a great experience each time so much I decided to make DR. Karwoski my primary care physician.
March 23, 2026Rodney H.Verified patient
Great experience with the Dr. and his staff about a 5min wait and the office was clean and welcoming.
January 6, 2026Kevin P.Verified patient
Very friendly and knowledgeable doctor. I would recommend him to family and friends.
December 10, 2025Initials hidden
I will definitely return. Answered all my concerns. Helpful very informative.
January 21, 2026Rafael V.Verified patient
Great doctor. Down to earth, personable, never feel rushed.
March 9, 2026Jason K.Verified patient
best practice and Doctor ! very caring staff and very very attentive seen on time even early !
highly recommend
February 22, 2024Candice S.Verified patient
great doctor. he took the time to answer all my questions. the whole staff was warm, friendly and professional
January 8, 2024Peter G.Verified patient
Dr K is great and nurse Kelly is so funny. They made my annual physical something I will look forward to.
June 4, 2024Solomon C.Verified patient
Active listener & great bedside manner. Office is efficient and was seen on time.
May 19, 2025Initials hidden
Great doctor, friendly, discusses your situation openly and completely. Office staff is excellent, courteous, and helpful.
January 11, 2019Jeffrey P.Verified patient
I needed a PCP for my annual physical and I was hesitant but Dr. K put my nerves at ease.
January 13, 2025Rosemarie M.Verified patient
Very pleasant knowledgeable physician who clearly prioritizes his patients! I am really happy with him & the office.
February 28, 2019Brenda MVerified patient
Amazing Dr and staff, always attentive and supportive! Highly recommend
Now my Primary :)
More than 1 year agoCandice S.Verified patient
such a great and understanding Doctor would make him my Primary anyday! effortless visit
January 11, 2024Candice S.Verified patient
Quick, easy, professional, with great bedside manner
September 23, 2025Grace N.Verified patient
Knowledgeable with my medical history and concerns. So glad to see him. His nurse, very good as well!
August 14, 2020Barbara O.Verified patient
I was impressed with the dr., his office, and his staff. Very professional yet warm and friendly.
More than 1 year agoInitials hidden
Very Nice staff and doctor. Felt like I was heard and bloodwork was done in house.
January 29, 2024Martha P.Verified patient
They were very nice and everything came out perfectly thank you
January 23, 2025Edwin R.Verified patient
Very friendly and professional bedside manner as well as a detailed examination. Love this guy!
January 7, 2020Dean H.Verified patient
Very friendly staff. Had a 12:15 appt and was seen on time.
More than 1 year agoInitials hidden
Highly knowledgeable, kind, and an excellent doctor.
March 11, 2025Rachel G.Verified patient
Very nice people and office took me right away dr was very good
June 28, 2024Joseph J V.Verified patient
Very informative. Dr. Karwoski was very understanding and helpful.
More than 1 year agoJS
Dr.Karwoski takes the time to listen and have a conversation.
January 14, 2020Initials hidden
Great - enjoyed speaking w him. Office clean and effiecient.
More than 1 year agoInitials hidden
Informative, helpful. Especially the support staff (Carla)!
More than 1 year agoTC
Great: to the point, efficient, friendly. My kinda doc.
May 17, 2019John D.Verified patient
The provider was professional and helpful
March 15, 2026Gerard W.Verified patient
Less than 3 months agoPamela Z.Verified patient
Nice and easy for a new patient.
January 6, 2026Piotr S.Verified patient
I came in for care for one thing, I got a physical! Complete with EKG full labs etc. I highly recommend the staff, the doctor all work very well together. Thank you ??
November 11, 2025Rivero H.Verified patient
I had a general physical and consultation with Dr. Jeffrey Karwoski, and I was not disappointed. He was very engaging, understanding, encouraging, extremely knowledgeable, and even funny. You can tell he truly cares about what he does and how he treats his patients.
The staff was also amazing, attentive, professional, and always making sure I felt comfortable throughout my visit. Doctor appointments can sometimes be nerve-racking because you never know how they’ll go, but this team did an incredible job creating a relaxed and positive experience.
I left feeling heard, cared for, and confident that I was in great hands. I highly recommend Dr. Karwoski and his team!
November 11, 2025Kendel O.Verified patient
good
September 3, 2025Neal V.Verified patient
Great experience
August 21, 2025Kuvana J.Verified patient
Excellent doctor.
March 3, 2025Jason K.Verified patient
Great doctor and amazing office
December 20, 2024Bozo Z.Verified patient
Very friendly and timely service. From the administrative staff to the medical staff, I was properly taken care of. I highly recommend to anyone looking for proficient care !
August 31, 2024Oluwasheun B.Verified patient
My experience was great! The only issue was that the office was a bit harder to find because it’s tucked behind stores. The doctor was great and the visit was straightforward and quick.
More than 1 year agoInitials hidden
My doctor was so friendly and informative.
June 22, 2024Malcolm K.Verified patient
Great bedside manners both staff and doctor. Spent time to listen and explain everything. Make me feel comfortable throughout the entire visit.
June 22, 2024Chetram R.Verified patient
Highly recommend!
May 22, 2024Juan M.Verified patient
Dr. Karwoski was amazing, found my new PC doctor
April 4, 2024Chris L.Verified patient
Pleasant experience all around from front staff ladies, nurse Kelly, and doctor Karwoski. Dr. K was attentive to all my concerns and questions and answered me in a quick and thorough manner that displayed his knowledge, experience, and care without feeling rushed. Nurse Kelly was very hospitable as well and funny. Glad I switched to this clinic for primary care.
March 22, 2024Andrew L.Verified patient
I spoke with the doctor and he educated me and spoke about options that we could look at with my health problem. Most doctors I have had are willing to just jump on giving you medication assuming that’s what you need and not actually diagnosing what the issue really is. The doctor was kind and I felt comfortable speaking with him about my health.
November 1, 2023Tyler L.Verified patient
He is amazing at what he does. He gives you time to ask questions and does not rush the appointment. He was extremely knowledgeable and gave excellent feedback. He's a doctor that spends time connecting with the patient. In such a confusing and uncertain time he took the time to explain and inform me about Covid -19. Highly recommend Dr. K!!
More than 1 year agoDana C.Verified patient
Very professional and also personal doctor. Put me at ease during these very strange times right now. Would highly recommend him.
More than 1 year agoJoseph C.Verified patient
Very professional
More than 1 year agoInitials hidden
Great doctor and checks everything throughly.
July 3, 2019Philip C.Verified patient
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Frequently asked questions
How soon can I make an appointment with Dr. Jeffrey Karwoski?
Generally, Dr. Jeffrey Karwoski has appointments available on Zocdoc within 1 week. You can see Dr. Karwoski's earliest availability on Zocdoc and make an appointment online.
What are common reasons for patients to see Dr. Jeffrey Karwoski?
Dr. Jeffrey Karwoski frequently sees patients for Annual Physical, Arthritis, Illness, Physical Therapy Consultation, and Sleep Problems. You can see other visit reasons for Dr. Jeffrey Karwoski on their profile.
How do patients rate Dr. Jeffrey Karwoski in reviews?
240 patients have reviewed Dr. Jeffrey Karwoski. The overall rating for this doctor is 4.9/5. They have a 4.92/5 rating for bedside manner and a 4.73/5 rating for wait time. You can read individual reviews and ratings on their profile.