Skip Navigation
Phone: 800-275-6401
Text Size: A A A

To schedule an appointment

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
1 279 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
- 4.8 out of 5
6. Provider instructions for follow-up care
- 4.8 out of 5
7. Provider spoke using clear language
- 4.9 out of 5
8. Time provider spent with patient
- 4.8 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 >
Sep 23
Dr. Harrington is an exceptional physician! The best!
Sep 22
I am extremely pleased that Dr. Harrington agreed to see me. He was my Mother's Doctor and was just wonderful.
Sep 8
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
Dr. Harrington has always been very thorough unhurried & supportive to concerns I have recommended him to others with rheumatic/arthritic conditions.
Sep 2
Dr. Harrington is always quick to respond back via email.
Aug 18
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
Aug 5
Dr. Harrington is the best! I feel very comfortable being with him and answering all questions I may have.
Aug 3
Dr. Harrington is the consummate professional!!
Aug 3
Thank you Dr. Harrington for you caring about your patients
Jul 29
I love Dr Harrington - he is the best. He understands my concerns and we talk about my treatment in detail.
Jul 26
I have been with Dr. Harrington ever since I was diagnosed with R A and am very pleased with my care.
Jul 14
I get such great care from the Doctor and staff. I really feel that they do care about me as a paitient
Jul 14
Dr. Harrington has been wonderful to me over the 20+ years I've been seeing him!
Jul 7
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 7
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
#10. 10 have many times.
Jul 6
Dr. Meadows and Dr. Harrington were EXCELLENT - they exceeded my expectations!
June 30
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
He has always been kind and considerate of my condition
June 20
Dr. Harrington is an exceptional physician.
June 1
He is a great doctor. Very thorough & kind.
May 18
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
Excellent doctor.
May 3
Felt very comfortable with Dr. Harrington. He never made me feel rushed. Answered ALL my questions, which were many.
May 3
Dr. Harrington is patient, caring and I know that I am getting the best care.
May 2
exceptional bed-side manner, exeptional physician
May 2
Apr 25
Dr. Harrington is a superb physician. He has helped me a lot with my knee pain.
Apr 22
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
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
Dr. has always taken the time to explain any issues that I have.
March 31
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
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
I have worked with him.
Feb 29
I have the utmost confidence in Dr. Harrington. He is very knowledgeable in his profession.
Feb 23
I hope he doesn't retire!!
Feb 17
I have always felt that I was well taken care of
Feb 11
truely should concern for me as a patient and my wellness
Feb 5
First appointment with Dr. Harrington. We spoke about 2 minutes. I will probably have treatment at Reading Hospital due hour and a half drive to Geisinger Medical and the fact that it is also costly to pay a driver.
Feb 2
Feb 1
I have already recommended Dr. Harrington to others. Very pleased with his effects.
Jan 27
Dr. Harrington is always very caring, takes time to listen to concerns and explains treatments, labs etc... very well. Excellent dr.!, offers to schedule return appt. himself.
Jan 27
Dr. Harrington was the best Doc I've ever encountered. Highly would recommend
Jan 22
This was the best visit I have had with a rheumatologist ever. First time a complete history was discussed regarding when symptoms started etc. Visit was not rushed Doctor explained everythong to me and answered all of my questions.
Jan 15
Dr. Harrington is the best!
Jan 14
excellent Dr. dialogue and treatment discussion
Jan 7
Extremely courteous, competent & pleasant.
Dec 29, 2015
I have the utmost respect for Dr Harington
Dec 22, 2015
I have been seen by Dr. Harrington for a number of years and he has always been great to see. He explains every thing to me so I understand. I was deployed over seas in 2008 and he was in contact with the P.A. that was stationed on my base in charge of our care.
Dec 17, 2015
I have referred several people to Dr. Harrington.
Dec 16, 2015
Dr. Harrington is always friendly & professional. He always answers my questions in ways that's easy for me to understand
Dec 7, 2015
Dr. Harrington has greatly reduced the pain in my knees. He is very competent and caring. I cannot really say enough about how he has given back my quality of life.
Dec 2, 2015
I never had a bad experience at Geisinger
Dec 2, 2015
I am thankful for Dr. Harrington. His ability to treat chronically very sick people is amazing!
Nov 30, 2015
Excellent doctor.
Nov 24, 2015
Dr. Harrington is an exceptional physician! He is always concerned with my level of comfort and quality of life.
Nov 23, 2015
I've been a patient of Dr. Harrington for about 14 years; I trust him completely and appreciate his care, concern and sense of humor.
Nov 19, 2015
When Dr. Perruquet left GMC he left a summary of my case. Dr. Harrington took the time to read the summary and was familiar with my patient history at the time of my initial visit with him.
Nov 19, 2015
Excellent man diagnosed all 3 types of _____. I can not say enough about the excellent care.
Nov 19, 2015
Great experiences with Dr Harrington. His caring and help has helped me survive.
Nov 17, 2015
I was referred to Dr. Harrington by my family doctor and it has been a good experience.
Nov 4, 2015
Have recommended to others
Nov 4, 2015
As you can see I'm a happy camper.
Nov 2, 2015
Dr. Harrington has always prescribed the proper medicine and treatments for my issues.