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

Dr. Roger Per-Erik Karlsson, PH.D., ABPP

Clinical Psychologist in Campbell, CA · enumerated 2009.

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

National Provider Identifier

1013246628

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Registry record

Entity type Individual (Type 1)

Name Dr. Roger Per-Erik Karlsson

Credential PH.D., ABPP

Sex Male

Practice address Campbell, CA, 95008

Phone (510) 847-5592

Enumeration date Dec 9, 2009

Last updated in NPPES Jun 21, 2021

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

Taxonomy & licenses

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers · License 21331 (CA) Secondary

103TP0814X Psychoanalysis Psychologist Behavioral Health & Social Service Providers · License 21331 (CA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 21331 (CA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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.

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Frequently asked questions

How do I verify Roger Karlsson's NPI record?

Cross-check NPI 1013246628 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1013246628 active?

Yes, as of the latest NPPES snapshot, NPI 1013246628 is active (record last updated 2021-06-21).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-21.