MR. MATTHEW ELDON RIEHM
NPI 1629941695
Counselor in Los Alamitos, CA

Q: What is Matthew Riehm's NPI number?

The NPI number for Matthew Riehm is 1629941695. It was assigned to this individual provider in the NPPES registry on September 25, 2025.

Q: What is Matthew Riehm's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Riehm was last updated on September 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 25, 2025

3591 CERRITOS AVE, LOS ALAMITOS, CA 90720(562) 799-4780(562) 799-4798 Get Directions Write a Review

NPPES record last updated: September 25, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Mr. Matthew Eldon Riehm NPPES

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

MR. MATTHEW ELDON RIEHM (NPI 1629941695) is an individual counselor in Los Alamitos, California, licensed in California (210088447) and active in the NPI registry since September 2025.

NPPES Registry Identity

NPI1629941695

Entity TypeIndividualMale

Primary Taxonomy101Y00000X

Provider Legal NameMR. MATTHEW ELDON RIEHM

Location Address3591 CERRITOS AVELos Alamitos, CA 90720-2414

Mailing Address8392 Malloy DrHuntington Beach, CA 92646-5039 · (562) 799-4780 · Fax (562) 799-4798

Phone(562) 799-4780

Fax(562) 799-4798

Sole ProprietorYes

Enumeration DateSeptember 25, 2025

NPPES CertifiedSeptember 25, 2025

✔ NPI 1629941695 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers

Taxonomy Code101Y00000X

License✔ Licensed in CA · 210088447

Definition

A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

3591 CERRITOS AVE, Los Alamitos, CA 90720

Open in Google Maps ↗

Other Providers at the Same Location NPPES 8

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

GAIL LORRAINE DAVENPORT PPS

Counselor (School)