Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alyssa Steiger

Clinical Psychologist in Mill Valley, CA · enumerated 2008.

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

National Provider Identifier

1730336157

Verified

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Registry record

Entity type Individual (Type 1)

Name Alyssa Steiger

Sex Female

Practice address Mill Valley, CA, 94941

Phone (628) 227-6278

Fax (628) 227-6278

Enumeration date Aug 27, 2008

Last updated in NPPES Dec 27, 2016

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License RPS2012011 (CA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 2012072 (CA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY25784 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
W416	Other	—	PCSD MEDICARE #

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 1730336157 active?

Yes — as of the latest NPPES snapshot, NPI 1730336157 is active (record last updated 2016-12-27).

How do I verify Alyssa Steiger's NPI record?

Cross-check NPI 1730336157 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-27.