Joseph W Tietz

Joseph W Tietz is a healthcare organization registered as Preferred Provider Organization in Berkeley, CA, holding Type 2 (organization) NPI 1649668377 since 2015. The authorized official on file is Joseph Tietz, Clinical Psychologist.

✓ Active NPI ✓ Valid NPI checksum

NPI	1649668377
Entity type	Organization (Type 2)
Legal business name	Joseph W Tietz
Practice address	1538 EDITH ST, Berkeley, CA, 94703
Phone	5109123438
Enumeration date	2015-01-05
Last updated in NPPES	2015-01-05

Authorized official

Name	Joseph Tietz
Title	Clinical Psychologist
Phone	5109123438

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
305R00000X	Preferred Provider Organization	Primary	22884	CA

Copy-ready billing details

Provider: Joseph W Tietz
NPI: 1649668377
Taxonomy: 305R00000X (Preferred Provider Organization)
Address: 1538 EDITH ST, Berkeley, CA, 94703

Verify this record

Cross-check NPI 1649668377 against the authoritative CMS record: view Joseph W Tietz on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-01-05. Verify at npiregistry.cms.hhs.gov.

Where is Joseph W Tietz located?

The practice location on file with NPPES is in Berkeley, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-01-05.