DR. MARISSA GARCIA ELPIDAMA PSY.D.
NPI 1750665915
Psychologist in Simi Valley, CA
About Dr. Marissa Garcia Elpidama Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARISSA GARCIA ELPIDAMA PSY.D. (NPI 1750665915) is an individual psychologist in Simi Valley, California, licensed in California (PSY24487) and active in the NPI registry since October 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Marissa Garcia Elpidama Psy.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Marissa Elpidama reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Thousand Oaks, CA 91320
- Reassigned Medicare billing, California enrollment
- 86 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.
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 Marissa Elpidama's NPI number?
The NPI number for Marissa Elpidama is 1750665915. It was assigned to this individual provider in the NPPES registry on October 6, 2011. The provider is also known as Dr. Marissa Juan Garcia Psy.D..
Where is Marissa Elpidama located?
Marissa Elpidama practices at 1720 E Los Angeles Ave Ste 221, Simi Valley, CA 93065. The listed phone number is (805) 501-0260.
What is Marissa Elpidama's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Marissa Elpidama enrolled in Medicare?
Yes. Marissa Elpidama is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Marissa Elpidama's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Elpidama reassigns Medicare benefits to Thriveworks Clinical - California PC (Thousand Oaks, CA). The 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 Marissa Elpidama'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 Marissa Elpidama was last updated on November 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.