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Phone: 800-275-6401
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To schedule an appointment

Providers call:1.800.332.8901
Patients call:1.800.275.6401

This provider sees patients at the following locations:

Family Practice Kingston West
499 Wyoming Avenue
Kingston, PA 18704
Riverstreet Manor Nursing Home Wilkes Barre
440 N River Street
Wilkes Barre, PA 18702

There is no publicly available rating for this care provider for one or more of the following reasons:
  1. He or she does not see patients in the outpatient clinic setting.
  2. He or she sees patients, but has not yet received the minimum number of Patient Satisfaction Reviews. To be eligible for display, we require a minimum of 30 surveys. This ensures that the rating is accurate and statistically reliable.
  3. He or she is a community provider, not a Geisinger-employed provider. Community providers tend to see patients in their own private outpatient practices, which we do not survey.

Kosek, Gunnar Francis, DO Visit for information on Gunnar Francis Kosek, DO. Find contact information, medical education, affiliated hospitals and more.
Overall Rating:
4.7 out of 5
1 221 ratings

Practicing Specialties:

  • Family Medicine, Board Certified, 1997
  • Primary Care


  • Philadelphia College of Osteopathic Medicine 1994


  • Wyoming Valley Family Medicine Residency 1997

Patient Satisfaction Ratings:

The Patient Satisfaction Rating is an average of all responses to care provider-related questions on our nationally recognized Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our survey >
1. Friendliness/courtesy of provider
- 4.8 out of 5
2. Provider explanations of prob/condition
- 4.7 out of 5
3. Provider concern for questions/worries
- 4.7 out of 5
4. Provider efforts to include in decisions
- 4.7 out of 5
5. Provider information about medications
- 4.6 out of 5
6. Provider instructions for follow-up care
- 4.5 out of 5
7. Provider spoke using clear language
- 4.8 out of 5
8. Time provider spent with patient
- 4.6 out of 5
9. Patients' confidence in provider
- 4.7 out of 5
10. Likelihood of recommending provider
- 4.6 out of 5

Patient Comments:

The comments are submitted by patients (or their caregivers) and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Geisinger. Learn more about our survey >
May 2
Dr Kosek is the best - makes you feel very comfortable & takes time to talk and answers questions
Apr 22
dr. K is very professional and completes all task in that manner
Apr 5
Dr. Kasek is an excellent and very caring doctor. Sorry to see my time with him seems shortened because of the overwhelming amount of patients he has to see now.
Apr 4
I have found Dr. Kosek to be very kind and competent. He shows empathy and listens intently to ones concerns and takes the time to make sure all questions are answered so you can understand them and you always feel good after your visit that you have someone who cares about you and will always do what's best for you.
Apr 1
I could tell he was busy and I felt very rushed. It was probably the shortest doctors visit I've ever had. I also felt he diminished my problems rather than reassuring me.
March 11
I felt that, I could have talked to the doctor a bit longer. I know he has a time limit, so I know he had to get me out of the office. It made me feel good that this doctor took the time to show that he cared enough to talk to me with the little time he had to spend with me without getting in trouble. This doctor is one of the very best that I have ever seen. I hope to have him as my doctor for a real long time!
March 3
I have had two outstanding family Drs., Dr. Nancy Gilhooley and now Dr. Kosek. I have been fortunate. He is always very pleasant, and from the moment he walks through the door he puts you at ease and you have his undivided attention.He always speaks in terms I can understand, if I don't understand he will repeat, He has patience, and cares for his patients and there concerns. He never makes me feel rushed.He is always willing to help in any way he can. If I need a referral he always knows who to send me to. I have great confidence in him as my doctor. He truly is the epitome of what a doctor should be! I do recommend him to others.
Feb 29
Bad PCP left the room before I had a chance to ask question.
Feb 16
Dr. Kosek was wonderful. He listened, seemed genuinely concerned, and did all he could to help me. I am very pleased to have him as my primary care physician.
Feb 15
Excellent bedside manner, very respectful
Feb 5
The Dr. will explain evrything thoroughly in words that are easily understood.
Feb 2
Due to the difficulty of accessing the Kingston Clinic by phone, and the lack of adequate staffing, I would not recommend it to anyone. This is in no way a reflection of the care that Dr. Kosek provides; I am pleased with him as a doctor.
Jan 29
#9. The best ever.
Jan 27
I am very happy with the care received from Dr. Kosek. The clinic however seems very overwhelmed and they need more help and need to deal with telephone issues.
Jan 26
Dr. listens but not much he can do for my diabetes.
Jan 7
Dr. Kosek is an excellent care provider.
Dec 23, 2015
Dr Kossack was great, it was my first vist with him and I feel very good about our future appt
Dec 21, 2015
Enjoyed this doctor very much. Very easy to communicate with.
Dec 17, 2015
I enjoy my visits with Dr Kosek he understands my problem
Dec 14, 2015
Dr. Did seem concerned but he said to call if no improvement in a few days- I never got a response from his office, call said to expect 24-48 hours, got a call from pulmonologist office for appt that was scheduled 2 weeks off- very disappointing when- am I now expected to go to urgent care?
Dec 10, 2015
This was my first visit to Dr. Kosek. I plan on continuing to see him.
Dec 8, 2015
This was my first encounter with Dr. Kosek, and I left instilled with a feeling of great confidence.
Dec 1, 2015
I have been patient of Dr. Kosek for years and he is the best. Very understanding and helpful. Really cares for person as a person.
Nov 16, 2015
Dr Kosek has been my parents doctor for years & I also enlisted him as my primary doctor - very caring & compassionate, never rushes you & treats you like you were his only patient there. would recommend him 100% and already have numerous times.
Oct 28, 2015
I have a lot of confidence in Dr. Kosek. He explains problems so they are easily understood and makes you feel comfortable about your care.
Oct 27, 2015
After waiting on hold for 8 minutes, sitting in the waiting room for 45 minutes, and waiting for the doctor, I spent about 5 minutes with the doctor, just to get a referral.
Oct 20, 2015
Honest, respectful, and showed diligence for my concerns.
Oct 14, 2015
I have always had a positive experience with Dr. Kosek.
Oct 5, 2015
*Dr. Kosek is an asset to the Geisinger Group excellent.
Oct 1, 2015
I forgot to inform the doctor of a health concern and to ask a question or two. It will take time to update him on all my health issues.
Sep 25, 2015
I am still waiting for a referral to a neuropsychologist
Sep 24, 2015
I already have recommended this dr. He didn't make me feel rushed, he explained everything and didn't just address one issue.
Sep 17, 2015
a great Doctor
Sep 1, 2015
So far a very pleasant experience.
Aug 27, 2015
*Dr. Kosek. Is a very good dr. who cares about his pt. If only he had HIS office I would be so happy.
Aug 27, 2015
*Dr. Gunnar Kosek is a fabulous doctor.
Aug 26, 2015
*Dr. Kaleb makes me feel at ease.
Aug 7, 2015
Doctor was thorough and informative about a medical concern I had with my son.
Aug 6, 2015
down to earth, informative
Aug 1, 2015
The staff at Kingston GMG have always been vreat. We are so lucky to have such great medical staff at our medical facility.
Jul 31, 2015
Dr. Gunner Kosek is EXCELLENT !
Jul 31, 2015
This was yearly physical examine, Care Provider did not check the prostate, did not check stomach area for internal growths, did not do test on eyes to follow the light. He did check heart, blood pressure, breathing.
Jul 29, 2015
Waiting room (too hot) no protection from sun.
Jul 28, 2015
*Dr. Kosek is an excellent physician. Very professional.
June 24, 2015
Very long wait time for an afternoon appointment.
June 23, 2015
Dr. Kosek is a very caring & thoughtful dr. I have recommended him to others. Very thorough.
June 16, 2015
This survey should include NON-APPLICABLE option.
June 15, 2015
Would recommend Dr, but trying to see your Dr, not so good. They need to stop taking new patients, they can't handle it
June 4, 2015
My first time meeting Dr. Kosek. He immediately recognized my issue. Had me call family members and I was sent via ambulance to hospital. This has put me in a position to get continued care for my issue.
June 3, 2015
dr spent time talking about a medication prescribed at office visit but never sent it to local pharmacy. instead, sent it to mail order. also I reviewed with her my mail order for a recurring daily prescription that needed, per the mail order pharmacy, specific written instruction brand specific and be faxed to the mail order. did not happen. I had to take time off again from work the next day to get this resolved.