Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Payam Aghassi, MD

Pulmonary Disease Physician in Leominster, MA · enumerated 2005.

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

National Provider Identifier

1093704298

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Registry record

Entity type Individual (Type 1)

Name Payam Aghassi

Credential MD

Sex Male

Practice address 50 Memorial Drive, Suite 113, Leominster, MA, 01453

Phone (978) 466-2692

Fax (978) 466-4754

Enumeration date Oct 19, 2005

Last updated in NPPES Apr 17, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 216511 (MA) Secondary

207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 216511 (MA) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 216511 (MA) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 216511 (MA) Primary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License #216511 (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
2121247	Medicaid	MA	-
M20928	Other	-	GROUP MEDICARE
467556	Other	-	TUFTS
9771476	Other	-	GROUP MEDICAID
AA66577	Other	-	HARVARD PILGRIM
J27245	Other	-	BLUE CROSS IF MASS

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

How do I verify Payam Aghassi's NPI record?

Cross-check NPI 1093704298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1093704298 active?

Yes, as of the latest NPPES snapshot, NPI 1093704298 is active (record last updated 2012-04-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-17.