Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory William Cotter, M.D.

Radiation Oncology Physician in Baton Rouge, LA · enumerated 2005.

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

National Provider Identifier

1659363067

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Registry record

Entity type Individual (Type 1)

Name Gregory William Cotter

Credential M.D.

Sex Male

Practice address 4950 Essen Ln Ste 500, Baton Rouge, LA, 70809

Phone (225) 767-0847

Fax (225) 767-1335

Enumeration date Aug 22, 2005

Last updated in NPPES Feb 6, 2024

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 11773 (SC) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 9773 (AL) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 15829 (MS) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 308265 (LA) Primary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 47775 (TN) 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
P01073107	Other	TN	RR MEDICARE
00011136	Medicaid	MS	-
920002053	Other	AL	RR MEDICARE
000016332	Medicaid	AL	-
1528979	Medicaid	TN	-
P01134118	Other	MS	RR MEDICARE
4334897	Other	TN	BCBS TN

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

Is NPI 1659363067 active?

Yes, as of the latest NPPES snapshot, NPI 1659363067 is active (record last updated 2024-02-06).

How do I verify Gregory Cotter's NPI record?

Cross-check NPI 1659363067 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-06.