Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Thomas J. Ryan, DO

Individual provider Internal Medicine Physician · NPI 1528239951

Thomas J. Ryan, DO practises Internal Medicine in Houlton, Maine. Graduated from University of New England, College of Osteo Medicine in 2006, 20 years ago. Practices with Down East Community Hospital, a 25-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Maine.

Years since qualifying
20
Trained at
University of New England, College of Osteo Medicine
Licensed in
MA, ME
In the registry since
2008
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

20 Hartford St
Houlton, ME 04730-1891 Not confirmed with CMS for 15 years — call before visiting
Phone: (207) 532-2900
Fax: (207) 532-5974
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 2076 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence 228303 (MA)

Record details

NPI number1528239951
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 13, 2008
Last updated in NPPESAugust 25, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 2006 (20 years in practice)
Group practice Down East Community Hospital — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients118
Services billed 388 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 nursing home, which CMS identifies by certification number only.

Colleagues at Down East Community Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 25 clinicians in the practice; 12 are shown here.

Other providers in Houlton