Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michelle Lee Welzenbach

Counselor in San Francisco, CA · enumerated 2010.

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

National Provider Identifier

1083928485

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Registry record

Entity type Individual (Type 1)

Name Michelle Lee Welzenbach

Sex Female

Practice address 1443 7th Ave, San Francisco, CA, 94122

Phone (415) 242-8034

Fax (415) 242-8039

Enumeration date Jul 28, 2010

Last updated in NPPES Dec 24, 2013

Taxonomy & licenses

101Y00000X Counselor 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

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.

What specialty is Michelle Welzenbach?

Michelle Welzenbach is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-24.