Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Otis R. Barnum , DO

Organization Internal Medicine Physician · NPI 1821180423

Otis R. Barnum , DO is an Internal Medicine Physician in Natchitoches, Louisiana. Registered with an NPI since 2006.

In the registry since
2006

Practice location Address checks out

1029 Keyser Ave Ste H
Natchitoches, LA 71457-6248
Phone: (318) 352-9880
Fax: (318) 357-1347
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1821180423
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Otis Barnum — Ceo · (318) 352-9880
Other names Natchitoches Internal Medicine
NPI enumeratedSeptember 29, 2006
Last updated in NPPESDecember 29, 2009
Mailing address1029 Keyser Ave, Suite H, Natchitoches, LA 71457-6248

Other providers in Natchitoches