What is William Zahn's NPI number?

William Zahn's National Provider Identifier (NPI) is 1922382894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Zahn's specialty?

William Zahn is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is William Zahn located?

William Zahn's practice location on file with NPPES is 1335 Stanford Ave, Emeryville, CA 94608-2536.

What is William Zahn's phone number?

The practice phone number listed in the NPPES registry for William Zahn is (909) 227-1399.

Is William Zahn's NPI active?

Yes — William Zahn's NPI (1922382894) is active in the NPPES registry as of the last update on 2015-01-12.

IndividualActive

William Zahn, PSY.D.

NPI 1922382894 · Clinical Psychologist · Emeryville, CA

William Zahn, PSY.D. is a Clinical Psychologist provider in Emeryville, CA (NPI 1922382894).

Provider details

NPI number: 1922382894
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PSY.D.
Sex: Male
Sole proprietor: No
License: PSY24256 (CA)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense PSY24256 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(81/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
14 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1335 Stanford Ave

Emeryville, CA 94608-2536

Phone: (909) 227-1399

Street-level locationGet directions

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Mailing address