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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann J Lewis, M.D., PH.D

Neurology with Special Qualifications in Child Neurology Physician in Santa Clara, CA · enumerated 2007.

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

National Provider Identifier

1285773366

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Registry record

Entity type Individual (Type 1)
Name Ann J Lewis
Credential M.D., PH.D
Sex Female
Practice address 710 Lawrence Expy, Homestead Mob, Dept 190; Tpmg Pediatrics, Santa Clara, CA, 95051
Phone (408) 851-9896
Fax (408) 851-1199
Enumeration date Feb 6, 2007
Last updated in NPPES Dec 14, 2021

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A72730 (CA) Secondary
2084N0402X Neurology with Special Qualifications in Child Neurology Physician Allopathic & Osteopathic Physicians · License A72730 (CA) 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
00A727300 Medicaid CA -

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 Ann Lewis?
The National Provider Identifier (NPI) for Ann Lewis is 1285773366, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ann Lewis practice?
The practice location on file with NPPES is in Santa Clara, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-14.