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

John C Platt, MD

Individual provider Internal Medicine Physician · NPI 1588638431

John C Platt, MD is an Internal Medicine in Auburn, Massachusetts. Graduated from Perelman School of Med at the University of Pennsylvania in 1977, 49 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
49
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MA
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

385 Southbridge St
Auburn, MA 01501-2498
Phone: (508) 721-1172
Fax: (508) 832-0859
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 50706 (MA)

Record details

NPI number1588638431
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 16, 2006
Last updated in NPPESSeptember 8, 2020
Certification dateSeptember 8, 2020
Mailing address4 Brotherton Way, Auburn, MA 01501-2684

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 1977 (49 years in practice)
Group practice Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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