Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Genessa M Trietsch, MSW, MPH

Social Worker in San Francisco, CA · enumerated 2010.

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

National Provider Identifier

1659672962

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Registry record

Entity type Individual (Type 1)

Name Genessa M Trietsch

Credential MSW, MPH

Sex Female

Practice address 555 Cole St, San Francisco, CA, 94117

Phone (415) 386-9398

Fax (415) 386-8212

Enumeration date Nov 3, 2010

Last updated in NPPES Nov 3, 2010

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social 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.

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Frequently asked questions

What specialty is Genessa Trietsch?

Genessa Trietsch is registered in NPPES with the primary taxonomy of Social Worker. 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 2010-11-03.