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

Individual provider Internal Medicine Physician · NPI 1982617833

Dr. Terrence Ryan, MD practises Internal Medicine in Litchfield, Connecticut. Graduated from University of Connecticut School of Medicine in 1990, 36 years ago. Practices with Prohealth Physicians PC, a 212-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
36
Trained at
University of Connecticut School of Medicine
Licensed in
CT
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

340 Bantam Rd
Litchfield, CT 06759-3318 Not confirmed with CMS for 19 years — call before visiting
Phone: (860) 567-9493
Fax: (860) 567-3933
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 032934 (CT)

Record details

NPI number1982617833
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 14, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Prohealth Physicians Pc — 212 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 patients339
Services billed 2,984 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Prohealth Physicians PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 212 clinicians in the practice; 12 are shown here.

Other providers in Litchfield