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Providers call:1-800-332-8901
Patients call:1-800-275-6401

This provider sees patients at the following locations:

Rheumatology Danville
100 N Academy Ave
Danville, PA 17822
Rheumatology Selinsgrove
620 University Ave
Selinsgrove, PA 17870

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.

Harrington, Thomas Michael, MD Visit for information on Thomas Michael Harrington, MD. Find contact information, medical education, affiliated hospitals and more.
Assistant Director, Department of Rheumatology
Overall Rating:
4.9 out of 5
1 275 ratings

Practicing Specialties:

  • Rheumatology, Board Certified, 1984


  • Temple University, School of Medicine 1976


  • Geisinger Medical Center 1979


  • Geisinger Medical Center 1981
  • Mayo Clinic - Rochester, MN 1982

Clinical Interests:

- Arthritis
- Polyarthritis
- Osteoarthritis (OA)
- Gout
- Pseudogout
- Rheumatoid arthritis (RA)
- Lupus
- Systemic lupus erythematosus (SLE)
- Undifferentiated connective tissue disease
- Scleroderma
- Raynauds
- Mixed connective tissue disease
- Sjogren’s
- Dermatomyositis
- Polymyositis
- Psoratic arthritis
- Ankylosing spondylitis
- Reactive arthritis
- Inflammatory bowel arthritis
- Polymyalgia rheumatica (PMR)
- Giant cell arteritis
- Temporal arteritis
- Vasculitis
- Arteritis
- Osteoporosis
- Glucocorticoid-induced osteoporosis
- Septic arthritis

Professional Memberships:

  • American College of Rheumatology - Fellow

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
- 4.9 out of 5
2. Provider explanations of prob/condition
- 4.9 out of 5
3. Provider concern for questions/worries
- 4.8 out of 5
4. Provider efforts to include in decisions
- 4.8 out of 5
5. Provider information about medications
- 4.9 out of 5
6. Provider instructions for follow-up care
- 4.9 out of 5
7. Provider spoke using clear language
- 4.9 out of 5
8. Time provider spent with patient
- 4.9 out of 5
9. Patients' confidence in provider
- 4.9 out of 5
10. Likelihood of recommending provider
- 4.9 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 >
Jan 18
Have recommended this provider many times
Jan 5
Dr. Harrington has been my Rheumatologist for many years and he has always taken very good care of me. He always takes the time to listen to me (I always take a list of things to tell him), and he always does whatever he can do to help me out.
Jan 5
Dr. Harrington has ALWAYS been courteous, professional, thorough and easy to talk to. I am very comfortable with him during these visits. He is a definite asset to GMC.
Dec 20, 2016
Only good experiences with Dr. Harrington
Dec 13, 2016
Dr. Harrington is a true professional!#9. A+.
Dec 9, 2016
Very much interested in my care and find the solution to my illness.
Dec 7, 2016
I have already recommended Dr. Harrington
Dec 1, 2016
Dr. Harrington genuinely.
Nov 30, 2016
Extremely - wonderful dr.
Nov 28, 2016
Have recommend GMC Rheumatology & Dr. Harrington to others in the past.
Nov 4, 2016
Dr Harrington is one of the best doctors at GMC
Nov 3, 2016
I tell people how great the Dr.'s and care at Danville is it is the best to me.
Nov 2, 2016
Oct 31, 2016
Oct 26, 2016
Oct 11, 2016
Very caring physician.
Oct 11, 2016
Dr. Harrington was very thorough as well as informative.
Oct 11, 2016
Dr. Harrington is amazing not only as a rheumatologist, but as a person. I am a GHP employee and recently lost my husband. It was the first app. I went to a GMC since he died. I was emotional. Dr. H. was very empathetic to my needs.
Oct 5, 2016
Very good.
Oct 5, 2016
All ready have recommended my doctor to several people I know!
Oct 3, 2016
It's very important to me to have trust in my care provider, and I completly trust Dr. Harrington. I have recommended him to quite a few people.
Sep 23, 2016
Dr. Harrington is an exceptional physician! The best!
Sep 22, 2016
I am extremely pleased that Dr. Harrington agreed to see me. He was my Mother's Doctor and was just wonderful.
Sep 8, 2016
I am extremely happy with Dr. Harrington. He explained my X-rays and made med changes. He also took the time to call me with the results of my MRI on Friday afternoon so I wouldn't worry over the weekend.
Sep 2, 2016
Dr. Harrington has always been very thorough unhurried & supportive to concerns I have recommended him to others with rheumatic/arthritic conditions.
Sep 2, 2016
Dr. Harrington is always quick to respond back via email.
Aug 18, 2016
Dr Harrington is an excellent provider, a true partner in my care. He offers state of the art suggestions to better manage my symptoms and disease process. He discusses the total triad of body, mind and spirit as part of his workup. I feel blessed to have a physician that is very understanding and approachable with all aspects of my care.
Aug 10, 2016
Aug 5, 2016
Dr. Harrington is the best! I feel very comfortable being with him and answering all questions I may have.
Aug 3, 2016
Thank you Dr. Harrington for you caring about your patients
Aug 3, 2016
Dr. Harrington is the consummate professional!!
Jul 29, 2016
I love Dr Harrington - he is the best. He understands my concerns and we talk about my treatment in detail.
Jul 26, 2016
I have been with Dr. Harrington ever since I was diagnosed with R A and am very pleased with my care.
Jul 14, 2016
I get such great care from the Doctor and staff. I really feel that they do care about me as a paitient
Jul 14, 2016
Dr. Harrington has been wonderful to me over the 20+ years I've been seeing him!
Jul 14, 2016
Jul 7, 2016
My only complaint about my visit was the wait time. Otherwise I was very happy about the care given to date about my problem.
Jul 7, 2016
#10. 10 have many times.
Jul 7, 2016
I always had nothing but positive experiences with Doctor Harrington. he is a good care provider and even though it's a doctor appointment we always look forward to our visit. Dr. Harrington is one of the good ones!
Jul 6, 2016
Dr. Meadows and Dr. Harrington were EXCELLENT - they exceeded my expectations!
June 30, 2016
Dr.Harrington is the best. More like a good friend than just my Specialist. Easy to talk to about anything not just my arthritis.
June 23, 2016
He has always been kind and considerate of my condition
June 20, 2016
Dr. Harrington is an exceptional physician.
June 1, 2016
He is a great doctor. Very thorough & kind.
May 18, 2016
I have been a patient of Dr. Harrington's for many years, in fact, he was trained by the first rheumatologist I ever had, Dr. Frank Viozzi, who was very special to me. Dr. Harrington has taken very good care of me, and I'm glad he is my rheumatologist.
May 18, 2016
Excellent doctor.
May 3, 2016
Felt very comfortable with Dr. Harrington. He never made me feel rushed. Answered ALL my questions, which were many.
May 3, 2016
Dr. Harrington is patient, caring and I know that I am getting the best care.
May 2, 2016
exceptional bed-side manner, exeptional physician
May 2, 2016
Apr 25, 2016
Dr. Harrington is a superb physician. He has helped me a lot with my knee pain.
Apr 22, 2016
I feel very fortunate to have Dr Harrington as my Rheumatologist. He is on top of my issues and takes the time to discuss everything with me. He's the best!
Apr 18, 2016
I am so blessed to have Dr Harrington care for Rheumatology health care issues. He displays a true model of caring for the whole person, not only the disease process. His conversations with me are always about partnering in my care and how together we can have the best outcomes. He is the best, always available to answer questions or help me with my needs.
Apr 12, 2016
Dr. has always taken the time to explain any issues that I have.
March 31, 2016
I was having a problem & had a lot of pain. I used my Geisinger & within 10 min I received call letting me know Dr. Harrington was on vacation. She gave me an appt for the next week. Dr. Harrington emailed me on MY Geisinger while he was away on vacation & we discussed my problems & what I should do until I saw him the following week. VERY impressed. Dr. Harrington's staff contacted to let him know about me & as I stated he contacted me via My Geisinger. Dr. Harrington & staff are very thorough! They are always professional and understanding. Very caring.
March 29, 2016
Dr Harrington is the person that keeps me able to work and live well. He is the only Dr I have complete and absolute trust in.
March 2, 2016
I have worked with him.
Feb 29, 2016
I have the utmost confidence in Dr. Harrington. He is very knowledgeable in his profession.
Feb 23, 2016
I hope he doesn't retire!!