Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Bartley A Larsen, M.D.

Diagnostic Radiology Physician in Princeton, NJ · enumerated 2005.

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

National Provider Identifier

1982600672

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Bartley A Larsen

Credential M.D.

Sex Male

Practice address 44 Grasmere Way, Princeton, NJ, 08540

Phone (609) 947-0581

Enumeration date Jun 27, 2005

Last updated in NPPES Jan 26, 2012

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MA04242200 (NJ) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 140012 (NY) 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
0909203	Medicaid	NJ	-

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 Bartley Larsen?

The National Provider Identifier (NPI) for Bartley Larsen is 1982600672, a Type 1 (individual) record in the CMS NPPES registry.

Where does Bartley Larsen practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-26.