NPI Portal NPI Lookup & Verification

Mr. Mark Alan Campbell

Mr. Mark Alan Campbell is a Mental Health Counselor provider (Counselor) practicing in Barstow, CA, registered in the NPPES registry with NPI 1821137670 since 2007.

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NPI 1821137670
Entity type Individual (Type 1)
Name Mr. Mark Alan Campbell
Sex Male
Practice address 1300 E MOUNTAIN VIEW ST, Barstow, CA, 92311
Phone 7602564303
Enumeration date 2007-02-06
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101YM0800X Mental Health Counselor Primary
Copy-ready billing details
Provider: Mark Campbell
NPI: 1821137670
Taxonomy: 101YM0800X (Mental Health Counselor)
Address: 1300 E MOUNTAIN VIEW ST, Barstow, CA, 92311

Other providers at this practice address

NPI Name Type Specialty Location
1174189690 County of San Bernardino Organization Adult Mental Health Clinic/Center Barstow, CA
1720644123 County of San Bernardino Organization Substance Use Disorder Rehabilitation Clinic/Center Barstow, CA

Verify this record

Cross-check NPI 1821137670 against the authoritative CMS record: view Mr. Mark Alan Campbell 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 do I verify Mark Campbell's NPI record?
Cross-check NPI 1821137670 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1821137670 active?
Yes — as of the latest NPPES snapshot, NPI 1821137670 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.