Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Genevieve Estilo, MD

Nephrology Physician in Greenbrae, CA · enumerated 2007.

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

National Provider Identifier

1558560482

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Registry record

Entity type Individual (Type 1)

Name Genevieve Estilo

Credential MD

Sex Female

Practice address 1300 S Eliseo Dr, Suite 104, Greenbrae, CA, 94904

Phone (415) 925-3075

Fax (415) 925-3070

Enumeration date Jul 11, 2007

Last updated in NPPES Oct 26, 2010

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 25MA08275400 (NJ) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License A111797 (CA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Genevieve Estilo?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-26.