Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Leon Haberman, M.D.

Internal Medicine Physician in Leominster, MA · enumerated 2006.

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

National Provider Identifier

1528161940

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Leon Haberman

Credential M.D.

Sex Male

Practice address 50 Memorial Dr, Suite 214, Leominster, MA, 01453

Phone (978) 534-6863

Fax (978) 534-3417

Enumeration date Sep 7, 2006

Last updated in NPPES Nov 16, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 38236 (MA) Primary

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
038236	Other	MA	TUFFS
0173088	Medicaid	MA	-
B01037	Other	MA	BLUE SHIELD
24144	Other	MA	FALLON SELECT
61995	Other	MA	HAVARD PILGRIM

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 Mark Haberman's NPI record?

Cross-check NPI 1528161940 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1528161940 active?

Yes, as of the latest NPPES snapshot, NPI 1528161940 is active (record last updated 2011-11-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-16.