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

Dr. Mark Hoffman

Forensic Psychologist in Represa, CA · enumerated 2009.

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

National Provider Identifier

1356581698

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mark Hoffman

Sex Male

Practice address Represa, CA, 95671

Phone (916) 985-8610

Enumeration date Feb 26, 2009

Last updated in NPPES Feb 26, 2009

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

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY8428 (CA) Secondary

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers Primary

103TH0100X Health Service Psychologist Behavioral Health & Social Service Providers Secondary

103TR0400X Rehabilitation Psychologist Behavioral Health & Social Service Providers Secondary

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

What specialty is Mark Hoffman?

Mark Hoffman is registered in NPPES with the primary taxonomy of Forensic Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Gregory Tinloy Dentist · Represa, CA NPI 1588661730 Resul Ozbayrak Psychiatry Physician · Represa, CA NPI 1245203934 Kathryn Peters Pharmacist · Represa, CA NPI 1730269929 Carrie Brecker Clinical Psychologist · Represa, CA NPI 1063598894 Susanna Farina Clinical Psychologist · Represa, CA NPI 1013089945 Brittany Brizendine Clinical Psychologist · Represa, CA NPI 1184831943 Barbara Smith Psychiatry Physician · Represa, CA NPI 1316157753 Sam Tan Dentist · Represa, CA NPI 1194921072

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-26.