Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Benjamin D Sommers, M.D., PH.D.

Internal Medicine Physician in Jamaica Plain, MA · enumerated 2007 · practices at Brigham and Women'S Hospital.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275733818

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Registry record

Entity type Individual (Type 1)

Name Benjamin D Sommers

Credential M.D., PH.D.

Sex Male

Practice address 3297 Washington St, Jamaica Plain, MA, 02130

Phone (617) 522-4700

Enumeration date Jul 23, 2007

Last updated in NPPES Feb 25, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 232398 (MA) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD039914 (DC) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Benjamin Sommers?

Benjamin Sommers is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-25.