Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Ann Flesher, CNM

Advanced Practice Midwife in San Francisco, CA · enumerated 2017.

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

National Provider Identifier

1316464720

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Registry record

Entity type Individual (Type 1)

Name Margaret Ann Flesher

Credential CNM

Sex Female

Practice address 1855 4th St Fl 3, San Francisco, CA, 94143

Phone (415) 353-2566

Enumeration date Aug 25, 2017

Last updated in NPPES Aug 11, 2025

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License APN.0994033-CNM (CO) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 236533 (CA) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM 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 is the NPI number for Margaret Flesher?

The National Provider Identifier (NPI) for Margaret Flesher is 1316464720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Flesher practice?

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

Other providers at this practice address

Browse all →

Alissa Erogbogbo Obstetrics & Gynecology Physician · San Francisco, CA NPI 1629234554 Karla Bermudez Wagner Maternal & Fetal Medicine Physician · San Francisco, CA NPI 1114169810 Traci Iwamoto Obstetrics & Gynecology Physician · San Francisco, CA NPI 1841566767 Ophelia Yin Maternal & Fetal Medicine Physician · San Francisco, CA NPI 1346630936 Sara Abu-Tabikh Critical Care Medicine (Anesthesiology) Physician · San Francisco, CA NPI 1265810055 Nicola Perlman Maternal & Fetal Medicine Physician · San Francisco, CA NPI 1104321025 Chiara Corbetta-Rastelli Obstetrics & Gynecology Physician · San Francisco, CA NPI 1952862849 Megan Lobel Obstetrics & Gynecology Physician · San Francisco, CA NPI 1972130334

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-11.