NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dean L Vassar, M.D.

Cardiovascular Disease Physician in Bel Air, MD · enumerated 2005.

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

National Provider Identifier

1609860642

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dean L Vassar
Credential M.D.
Sex Male
Practice address 520 Upper Chesapeake Dr, Suite 201, Bel Air, MD, 21014
Phone (410) 893-3122
Fax (410) 893-0483
Enumeration date Sep 6, 2005
Last updated in NPPES Dec 18, 2012

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License D0016036 (MD) 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
187681300 Medicaid MD -

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 Dean Vassar?
The National Provider Identifier (NPI) for Dean Vassar is 1609860642, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dean Vassar practice?
The practice location on file with NPPES is in Bel Air, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-18.