Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DENNIS EDWARD OLSEN II LMFT
NPI 1912888538
Marriage & Family Therapist in Folsom, CA

Q: What is Dennis Olsen's NPI number?

The NPI number for Dennis Olsen is 1912888538. It was assigned to this individual provider in the NPPES registry on September 10, 2025.

Q: What is Dennis Olsen's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Dennis Olsen was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 10, 2025

2365 IRON POINT RD STE 210, FOLSOM, CA 95630(925) 282-1778 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 25, 2026, Feb 2, 2026, Sep 10, 2025 (3 updates tracked since 2025).

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About Dennis Edward Olsen Ii Lmft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DENNIS EDWARD OLSEN II LMFT (NPI 1912888538) is an individual marriage & family therapist in Folsom, California, licensed in California (163936) and active in the NPI registry since September 2025. He maintains a secondary practice location in Roseville.

NPPES Registry Identity

NPI1912888538

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameDENNIS EDWARD OLSEN IICredential: LMFT

Location Address2365 IRON POINT RD STE 210Folsom, CA 95630-8713

Mailing Address1382 Blue Oaks Blvd Ste 213Roseville, CA 95678-7052 · (877) 412-8031

Phone(925) 282-1778

Sole ProprietorNo

Enumeration DateSeptember 10, 2025

Last NPPES UpdateAugust 25, 20263 updates tracked since enumeration

NPPES CertifiedAugust 25, 2026

✔ NPI 1912888538 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · 163936

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

2365 IRON POINT RD STE 210, Folsom, CA 95630

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Secondary Practice Location 1

Location 11382 Blue Oaks Blvd Ste 213Roseville, CA 95678-7052 · Phone (877) 412-8031

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DAYNE ARVIN ACHACOSO MENARDO PSYD

Psychologist (Clinical)