Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James A. Mccartan, D.O.

Hospitalist Physician in Houston, TX · enumerated 2005.

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

National Provider Identifier

1851388441

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Registry record

Entity type Individual (Type 1)

Name Dr. James A. Mccartan

Credential D.O.

Sex Male

Practice address 18333 Egret Bay Blvd Ste 140, Houston, TX, 77058

Phone (281) 332-3001

Enumeration date Sep 29, 2005

Last updated in NPPES Oct 20, 2026

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License R8052 (TX) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License R8052 (TX) Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License OS12133 (FL) Secondary

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

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 James Mccartan practice?

The practice location on file with NPPES is in Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for James Mccartan?

The National Provider Identifier (NPI) for James Mccartan is 1851388441, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-20.