1. Home
  2. Directory
  3. California
  4. Vista
  5. Counselor
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIAH MERRIAM
NPI 1881428381
Counselor - Addiction (Substance Use Disorder) in Vista, CA

Active since August 27, 2024
993 POSTAL WAY, VISTA, CA 92083(760) 630-9922 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 6, 2026, Apr 7, 2025 (2 updates tracked since 2025).

About Mariah Merriam NPPES

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

MARIAH MERRIAM (NPI 1881428381) is an individual addiction (substance use disorder) provider in Vista, California and active in the NPI registry since August 2024.

NPPES Registry Identity

NPI1881428381
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameMARIAH MERRIAM
Location Address993 POSTAL WAYVista, CA 92083-6945
Mailing Address993 Postal WayVista, CA 92083-6945 · (760) 630-9922
Phone(760) 630-9922
Sole ProprietorNo
Enumeration DateAugust 27, 2024
Last NPPES UpdateJune 30, 20262 updates tracked since enumeration
NPPES CertifiedJune 30, 2026
✔ NPI 1881428381 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
Also ListedPeer SpecialistTaxonomy 175T00000X · License MPSS-EUGLAW (CA)
993 POSTAL WAY, Vista, CA 92083
Open in Google Maps ↗

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.

CODY ALLEN SHEPHERD
Counselor (Addiction (Substance Use Disorder))
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922
JACOB BALDWIN
Counselor (Addiction (Substance Use Disorder))
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922
NICELLE NACHTNEBLE
Counselor (Addiction (Substance Use Disorder))
993 POSTAL WAY
VISTA, CA 92083
San Diego County (176) 053-5665
JOSEPH ALAN DAVENPORT
Counselor (Addiction (Substance Use Disorder))
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922
RYAN BENNETT RADT 1
Community Health Worker
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922
AMITICE LISA SAREMI AMFT
Marriage & Family Therapist
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922
CODY WEST
Counselor (Addiction (Substance Use Disorder))
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922
MR. MICHAEL TOWNSEND RADT-1
Peer Specialist
993 POSTAL WAY
VISTA, CA 92083
San Diego County (760) 630-9922

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mariah Merriam's NPI number?

The NPI number for Mariah Merriam is 1881428381. It was assigned to this individual provider in the NPPES registry on August 27, 2024.

Where is Mariah Merriam located?

Mariah Merriam practices at 993 Postal Way, Vista, CA 92083. The listed phone number is (760) 630-9922.

What is Mariah Merriam's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Mariah Merriam was last updated on June 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 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.