Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mariah Merriam

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1881428381

Mariah Merriam is an Addiction (Substance Use Disorder) Counselor in Vista, California. Licensed in California. Registered with an NPI since 2024.

Licensed in
CA
In the registry since
2024
Specialties on file
2

Practice location Address checks out

993 Postal Way
Vista, CA 92083-6945
Phone: (760) 630-9922
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X
Peer Specialist Taxonomy 175T00000X · Licence MPSS-EUGLAW (CA)

Record details

NPI number1881428381
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 27, 2024
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026
Mailing address993 Postal Way, Vista, CA 92083-6945

Other providers in Vista