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Phone: 800-275-6401
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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:
4.8 out of 5
1 265 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
- 4.8 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 >
May 3
Dr. Harrington is patient, caring and I know that I am getting the best care.
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
Great experiences with Dr Harrington. His caring and help has helped me survive.
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 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.
Oct 19, 2015
I always leave Dr. Harrington's office feeling very good about my visit, and I have the utmost confidence in his advice concerning my health.
Oct 12, 2015
I recommended my Dr. several times to others already!
Oct 9, 2015
They are very skilled people in their job nurses as well as doctors and administrative staff.
Oct 7, 2015
Dr. Harrington ALWAYS pays attention to any problems.
Sep 15, 2015
Dr. Harrington is excellent!
Sep 10, 2015
very good experience. thank him
Sep 9, 2015
*Dr. Harrington is the very best! Had concern is courtesy.
Sep 3, 2015
Dr. Harrington has given excellent care to my husband and me through the years.
Sep 2, 2015
I really am glad to have Dr Harrington as my doctor, he is always willing to work with me on medication issues.
Aug 26, 2015
have always felt Dr. Harrington was sincerely concerned for my quality of life in dealing with my arthritis.
Aug 19, 2015
Great doctor!
Aug 14, 2015
Dr. Harrington has been my Doctor since the early 90's. I wish all my Doctors were as caring & kind as Dr. Harrington. He takes the time to listen & talk to me. On a scale from 1-10, he is a 10.
Aug 12, 2015
Best doctor and staff!
Jul 16, 2015
I always feel very comfortable talking to Dr. Harrington about any issues or concerns. He takes the time to explain any concerns or questions I have and makes recommendations.
Jul 10, 2015
Excellent Dr who saw me the day Icalled with pain. He always is professional and caring.
Jul 2, 2015
I have the upmost confidence in *Dr. Harrington.
June 25, 2015
Dr. Harrington is an exceptional physician.
June 24, 2015
it's always a great experience, I have no complaints
June 1, 2015
I had a new problem and he network ASAP to get me another specialist while taking care of his area of expertise.