Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mark R Vanelli, M.D.

Q: What is the NPI number for Mark Vanelli?

The National Provider Identifier (NPI) for Mark Vanelli is 1447268222, a Type 1 (individual) record in the CMS NPPES registry.

Psychiatry Physician in Westborough, MA · enumerated 2006.

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

National Provider Identifier

1447268222

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Registry record

Entity type Individual (Type 1)

Name Mark R Vanelli

Credential M.D.

Sex Male

Practice address Westborough, MA, 01581

Phone (508) 898-8650

Fax (508) 870-9793

Enumeration date Aug 4, 2006

Last updated in NPPES May 2, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 60076 (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
15-00999	Other	MA	EVERCARE
J09205	Other	MA	BLUE SHIELD
3056244	Medicaid	MA	-
776748	Other	MA	TUFTS

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 is the NPI number for Mark Vanelli?

The National Provider Identifier (NPI) for Mark Vanelli is 1447268222, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Vanelli practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-02.