Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Otis R Barnum, DO

Individual provider Internal Medicine Physician · NPI 1245224559

Otis R Barnum, DO is an Internal Medicine Physician in Natchitoches, Louisiana. Licensed in Louisiana. Registered with an NPI since 2005.

Licensed in
LA
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

617 Bienville St
Natchitoches, LA 71457-5739
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 · Licence 018855 (LA)

Record details

NPI number1245224559
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 1, 2005
Last updated in NPPESAugust 16, 2021
Certification dateAugust 16, 2021

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients371
Services billed 5,930 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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