Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Isabel C. Hill, M.D.

Q: What is the NPI number for Isabel Hill?

The National Provider Identifier (NPI) for Isabel Hill is 1336304468, a Type 1 (individual) record in the CMS NPPES registry.

Anatomic Pathology & Clinical Pathology Physician in Sunnyvale, TX · enumerated 2008.

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

National Provider Identifier

1336304468

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Registry record

Entity type Individual (Type 1)

Name Isabel C. Hill

Credential M.D.

Sex Female

Practice address 231 S Collins Rd, Sunnyvale, TX, 75182

Phone (972) 892-3000

Enumeration date Jul 29, 2008

Last updated in NPPES Dec 3, 2018

Taxonomy & licenses

207ZH0000X Hematology (Pathology) Physician Allopathic & Osteopathic Physicians · License M-1811 (GU) Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License P9142 (TX) Primary

207ZH0000X Hematology (Pathology) Physician Allopathic & Osteopathic Physicians · License P9142 (TX) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Isabel Hill?

The National Provider Identifier (NPI) for Isabel Hill is 1336304468, a Type 1 (individual) record in the CMS NPPES registry.

Where does Isabel Hill practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-03.