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Otis R. Barnum ,D.O.

Internal Medicine Physician in Natchitoches, LA · enumerated 2006 · authorized official Otis Barnum, Ceo.

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

National Provider Identifier

1821180423

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Registry record

Entity type Organization (Type 2)
Legal business name Otis R. Barnum ,D.O.
Other name <Unavail>
Practice address 1029 Keyser Ave, Suite H, Natchitoches, LA, 71457
Phone (318) 352-9880
Fax (318) 357-1347
Enumeration date Sep 29, 2006
Last updated in NPPES Dec 29, 2009

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Otis Barnum
Title Ceo
Phone (318) 352-9880

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

Who is the authorized official for Otis R. Barnum ,D.O.?
NPPES lists Otis Barnum (Ceo) as the authorized official for this organization.
What is the NPI number for Otis R. Barnum ,D.O.?
The NPI for Otis R. Barnum ,D.O. is 1821180423, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-29.