Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jimmy R. Mascaro, D.O.

Psychiatry Physician in Ottumwa, IA · enumerated 2006.

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

National Provider Identifier

1104998251

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Registry record

Entity type Individual (Type 1)

Name Jimmy R. Mascaro

Credential D.O.

Sex Male

Practice address 312 E Alta Vista Ave, Ottumwa, IA, 52501

Phone (641) 683-4454

Fax (641) 683-4450

Enumeration date Nov 14, 2006

Last updated in NPPES Oct 16, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 3768 (IA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
28586	Other	IA	BCBS
0739672	Medicaid	IA	-
28587	Other	IA	BCBS OTHER
IA01J4	Other	IA	UHC

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Jimmy Mascaro?

Jimmy Mascaro is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-16.