Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Billie Rachael Perlmutter, MS

Genetic Counselor (M.S.) in San Francisco, CA · enumerated 2008.

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

National Provider Identifier

1265604102

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Billie Rachael Perlmutter

Credential MS

Sex Female

Practice address 1855 4th St Rm A-243, Box 0570, San Francisco, CA, 94158

Phone (415) 476-1004

Fax (415) 502-0660

Enumeration date Apr 1, 2008

Last updated in NPPES Apr 7, 2015

Taxonomy & licenses

170300000X Genetic Counselor (M.S.) Other Service Providers Primary

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 Billie Perlmutter?

The National Provider Identifier (NPI) for Billie Perlmutter is 1265604102, a Type 1 (individual) record in the CMS NPPES registry.

Where does Billie Perlmutter practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-07.