NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald L Barlow

Peer Specialist in Hayward, CA · enumerated 2019.

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

National Provider Identifier

1073174363

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Donald L Barlow
Sex Male
Practice address 1525 B St, Hayward, CA, 94541
Enumeration date Jun 26, 2019
Last updated in NPPES Feb 11, 2020

Taxonomy & licenses

175T00000X Peer Specialist Other 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Donald Barlow practice?
The practice location on file with NPPES is in Hayward, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Donald Barlow?
The National Provider Identifier (NPI) for Donald Barlow is 1073174363, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-11.