DR. MARISSA MANNINA PHD, LP
NPI 1790922532
Psychologist - Clinical in Walnut Creek, CA
About Dr. Marissa Mannina Phd, Lp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARISSA MANNINA PHD, LP (NPI 1790922532) is an individual clinical provider in Walnut Creek, California, licensed in California (24937) and active in the NPI registry since January 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Fremont, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 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 Mannina Phd, Lp 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 Mannina reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Scottsdale, AZ 85253
- Reassigned Medicare billing, California enrollment
- 766 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94597 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
WALNUT CREEK, CA 94597
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 Mannina's NPI number?
The NPI number for Marissa Mannina is 1790922532. It was assigned to this individual provider in the NPPES registry on January 15, 2009. The provider is also known as Marissa Scarpa-Mannina.
Where is Marissa Mannina located?
Marissa Mannina practices at 2970 Camino Diablo Ste 300, Walnut Creek, CA 94597. The listed phone number is (925) 282-1778.
What is Marissa Mannina's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is Marissa Mannina enrolled in Medicare?
Yes. Marissa Mannina 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 Mannina's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Mannina reassigns Medicare benefits to Pacific Coast Psychiatric Associates Inc (Scottsdale, AZ). 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 Mannina'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 Mannina was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.