Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Gesmundo, MD

Internal Medicine Physician in Boston, MA · enumerated 2005.

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

National Provider Identifier

1891785069

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Registry record

Entity type Individual (Type 1)

Name Dr. Joseph Gesmundo

Credential MD

Sex Male

Practice address 388 Commonwealth Ave, Mgh Back Bay, Boston, MA, 02215

Phone (617) 267-7171

Fax (617) 262-2608

Enumeration date Oct 27, 2005

Last updated in NPPES Oct 9, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 157107 (MA) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 157107 (MA) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
I57107	Other	MA	TUFTS HEALTH PLAN
J18963	Other	MA	BCBS MA
3179761	Medicaid	MA	-

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.

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Frequently asked questions

Where does Joseph Gesmundo practice?

The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Joseph Gesmundo?

The National Provider Identifier (NPI) for Joseph Gesmundo is 1891785069, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-09.