MARIAH DENNIS
NPI 1285144253
Marriage & Family Therapist in Altadena, CA
About Mariah Dennis NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIAH DENNIS (NPI 1285144253) is an individual marriage & family therapist in Altadena, California, licensed in California (101917) and active in the NPI registry since October 2017. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mariah Dennis is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mariah Dennis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 clinicians in this Medicare group
Santa Clara, CA 95054
- Reassigned Medicare billing, California enrollment
- 1,607 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
ALTADENA, CA 91001
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 Dennis's NPI number?
The NPI number for Mariah Dennis is 1285144253. It was assigned to this individual provider in the NPPES registry on October 4, 2017.
Where is Mariah Dennis located?
Mariah Dennis practices at 760 Mountain View St, Altadena, CA 91001. The listed phone number is (323) 681-4827.
What is Mariah Dennis's specialty?
The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.
Is Mariah Dennis enrolled in Medicare?
Yes. Mariah Dennis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mariah Dennis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariah Dennis reassigns Medicare benefits to 2 organizations: Grow Healthcare Group PC (San Jose, CA) and Sud Specialty Group - Ca (Santa Clara, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mariah Dennis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mariah Dennis was last updated on October 4, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.