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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 40 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.

Gunnar Francis Kosek, 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
1 407 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. Friendliness/courtesy of provider
- 4.8 out of 5
3. Provider explanations of prob/condition
- 4.7 out of 5
4. Provider explanations of prob/condition
- 4.7 out of 5
5. Provider concern for questions/worries
- 4.7 out of 5
6. Provider concern for questions/worries
- 4.7 out of 5
7. Provider efforts to include in decisions
- 4.7 out of 5
8. Provider efforts to include in decisions
- 4.7 out of 5
9. Provider information about medications
- 4.7 out of 5
10. Provider information about medications
- 4.6 out of 5
11. Provider instructions for follow-up care
- 4.6 out of 5
12. Provider instructions for follow-up care
- 4.6 out of 5
13. Provider spoke using clear language
- 4.8 out of 5
14. Provider spoke using clear language
- 4.8 out of 5
15. Time provider spent with patient
- 4.7 out of 5
16. Time provider spent with patient
- 4.7 out of 5
17. Patients' confidence in provider
- 4.7 out of 5
18. Patients' confidence in provider
- 4.7 out of 5
19. Likelihood of recommending provider
- 4.7 out of 5
20. 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 >
Oct 28
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 5
*Dr. Kosek is an asset to the Geisinger Group excellent.
Aug 27
*Dr. Kosek. Is a very good dr. who cares about his pt. If only he had HIS office I would be so happy.
Sep 24
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
a great Doctor
Aug 27
*Dr. Gunnar Kosek is a fabulous doctor.
Aug 26
*Dr. Kaleb makes me feel at ease.
Aug 7
Doctor was thorough and informative about a medical concern I had with my son.
Aug 6
down to earth, informative
Aug 1
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
Dr. Gunner Kosek is EXCELLENT !
Jul 31
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
Waiting room (too hot) no protection from sun.
Jul 28
*Dr. Kosek is an excellent physician. Very professional.
June 24
Very long wait time for an afternoon appointment.
June 23
Dr. Kosek is a very caring & thoughtful dr. I have recommended him to others. Very thorough.
June 16
This survey should include NON-APPLICABLE option.
June 15
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
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
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.
May 29
Good experience Dr was excellent
May 22
Not only did dr Kosek provide information on the medication he was giving me, he also recommended some other things I can try to help solve my issue.
May 8
My doctor ,Dr. Kosek, is very friendly and thorough. He explains options and listens well. I would highly reccomend his services to anyone.
May 6
I'm so glad Dr. Kosek is in the office more. He really listens to what I tell him, and makes sure to tell me to call or e-mail if there's a problem. Also gets me involved to help myself.
May 6
Dr. Kosek is the best - Always concerned & never rushes us out of office - My parents had & have him as their doctor, now me, my husband & my sons took him on.
May 4
Very easy to talk to!
Apr 30
Dr Kosek is awesome. Always concerned and easy to communicate with.
Apr 29
We are still early in our trust building because I have only been with him a few months, but his compassion and care and understanding is remarkable, I am sure I will become more confident as I continue to see him. He helped me out through some emotional difficulties. Very helpful.
Apr 28
I just wish my provider would exercise more power in getting major testing performed. To ask me to have a test done and them find out it's 60 days out is unacceptable and given certain serious symptoms, I would hope that my provider/office could get things scheduled much sooner
Apr 20
Dr. Kosek provided explainations that are easily understood. He provided answers to questions I had and thoroughly explained the possibiliy for a plan B if my symptoms did not improve. He is very reassuring and has my full trust.
Apr 16
very good
Apr 6
I wasn't even done describing what was wrong, and he was trying to diagnose me.
Apr 6
Dr. Kosek always explains everything in words I can understand. He will always take time to answer any of my questions and explain all treatment options.
March 27
I'm very happy with my doctor & his staff. Everyone is very nice & concerned & patient & accommodating.
March 24
He really listen to my concerns and has helped me greatly!
March 6
best doctor I have ever had
March 5
Dr. Kosek is an excellent doctor that I trust. He-is the reason I put up with the ILL RUN, ILL MANNERED staff in registration area. I've waited 10 to 15 minutes just to check in for my appointment.
Feb 23
Response to "My Geisinger" inquiring could be more timely. During the Nov. and Dec. 2014 timeframe, I waited over 6 weeks to get a response from the doctor via My Geisinger.
Feb 9
Feb 3
Dr. Kosek has phenomenal bedside manner! I never feel rushed and he always asks if he answered all and any questions i may have. Always feel very comfortable talking about any problem i may be having.
Jan 30
Dr. Kosek is great. He listens and understands. His advice is pertinent and always addresses my issues to ensure I'm able to live a most productive life, even with my health problems.
Jan 29
Excellent physician.
Jan 29
Item 6 I have many stones (kidney) I have passed 3 since Item 2 above condition!
Jan 20
THE WAIT-TIME IN THE CLINIC WAS AWFUL{illegible or inappropriate content}NEARLY AN HOUR{illegible or inappropriate content}
Dec 31, 2014
I had an appointment with a resident, who, although a bit inexperienced, was very friendly and helpful, and I felt that she was quite competent. She had a great manner and I felt very comfortable with her.
Dec 30, 2014
Dr. Kosek will thoroughly explain everything in easy to understand terms. He makes sure I am fully aware of any medication and how it will work.
Dec 19, 2014
I feel I am completely involved in my care.
Dec 16, 2014
Dr. Kosek was great, but the wait time was a bit ridiculous. I know that doctors can get behind, but I wish I was informed so I could plan accordingly.
Dec 16, 2014
Gunnar Kosek is a wonderful DO.
Dec 9, 2014
have great trust and respect for dr kosek