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Dr. Thayer Ismaael, MD

Hospitalist Physician in Amarillo, TX · enumerated 2010.

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

National Provider Identifier

1720305477

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Registry record

Entity type Individual (Type 1)
Name Dr. Thayer Ismaael
Credential MD
Sex Male
Practice address 1600 Wallace Blvd, Amarillo, TX, 79106
Phone (806) 212-2129
Fax (806) 212-2246
Enumeration date Apr 21, 2010
Last updated in NPPES Apr 18, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License P5649 (TX) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License P5649 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
322246502 Medicaid TX -

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 Thayer Ismaael practice?
The practice location on file with NPPES is in Amarillo, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Thayer Ismaael?
The National Provider Identifier (NPI) for Thayer Ismaael is 1720305477, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-18.