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Dr. Gregory C Henkelmann, MD

Radiation Oncology Physician in Baton Rouge, LA · enumerated 2006 · practices at Mary Bird Perkins Cancer Center.

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

National Provider Identifier

1639264237

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregory C Henkelmann
Credential MD
Sex Male
Practice address 4950 Essen Lane, Baton Rouge, LA, 70809
Phone (225) 215-1136
Fax (225) 215-1658
Enumeration date Oct 3, 2006
Last updated in NPPES Nov 23, 2009

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 07671R (LA) 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
1377325 Medicaid LA -

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

Where does Gregory Henkelmann practice?
The practice location on file with NPPES is in Baton Rouge, LA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gregory Henkelmann?
The National Provider Identifier (NPI) for Gregory Henkelmann is 1639264237, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-23.