Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Phoebe Ann Winn, MD

Pediatrics Physician in San Francisco, CA · enumerated 2019 · practices at University of California San Francisco.

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

National Provider Identifier

1821559956

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Registry record

Entity type Individual (Type 1)

Name Phoebe Ann Winn

Credential MD

Sex Female

Practice address 521 Parnassus Ave Fl 7, San Francisco, CA, 94143

Phone (415) 353-1238

Enumeration date Mar 29, 2019

Last updated in NPPES Apr 21, 2026

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A178293 (CA) Primary

2080H0002X Pediatric Hospice and Palliative Medicine Physician Allopathic & Osteopathic Physicians · License 61570806 (WA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2080H0002X Pediatric Hospice and Palliative Medicine Physician Allopathic & Osteopathic Physicians · License A178293 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Phoebe Winn?

Phoebe Winn is registered in NPPES with the primary taxonomy of Pediatrics 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 2026-04-21.