Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Edward Thomas Ryan, MD

Individual provider Internal Medicine Physician · NPI 1255321022

Dr. Edward Thomas Ryan, MD is an Infectious Disease in Boston, Massachusetts. Graduated from Harvard Medical School in 1988, 38 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
38
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2005
Specialties on file
2
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

55 Fruit St Grj 5 Infectious Disease Associates
Boston, MA 02114-2696
Phone: (617) 726-6175
Fax: (617) 726-7416
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 72191 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 72191 (MA)

Record details

NPI number1255321022
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2005
Last updated in NPPESOctober 23, 2012

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1988 (38 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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