Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Ann B. Shafer, M.D.

Pediatrics Physician in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1407872757

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Ann B. Shafer

Credential M.D.

Sex Female

Practice address 400 Parnassus Ave Fl 2, San Francisco, CA, 94143

Phone (415) 353-2002

Fax (415) 476-6106

Enumeration date Jul 13, 2006

Last updated in NPPES Jul 23, 2008

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License G27719 (CA) Primary

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians · License G27719 (CA) Secondary

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
00G277190	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1407872757 active?

Yes, as of the latest NPPES snapshot, NPI 1407872757 is active (record last updated 2008-07-23).

How do I verify Mary Ann Shafer's NPI record?

Cross-check NPI 1407872757 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-23.