MARINA MARCHAK MD
NPI 1386684124
Psychiatry & Neurology - Psychiatry in Atascadero, CA
About Marina Marchak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARINA MARCHAK MD (NPI 1386684124) is an individual psychiatry provider in Atascadero, California, licensed in California (A87782) and active in the NPI registry since June 2006. 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)
Marina Marchak Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Marina Marchak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Atascadero, CA 93422
- Reassigned Medicare billing, California enrollment
- 755 clinicians in this Medicare group
Fresno, CA 93721
- Reassigned Medicare billing, California enrollment
- 99 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 93422 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.
ATASCADERO, CA 93422
ATASCADERO, CA 93422
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 Marina Marchak's NPI number?
The NPI number for Marina Marchak is 1386684124. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is Marina Marchak located?
Marina Marchak practices at 10333 El Camino Real, Atascadero, CA 93422. The listed phone number is (805) 468-2000.
What is Marina Marchak's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Marina Marchak enrolled in Medicare?
Yes. Marina Marchak is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Marina Marchak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marina Marchak reassigns Medicare benefits to 2 organizations: Department Of State Hospitals (Atascadero, CA) and County Of Fresno (Fresno, 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 Marina Marchak'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 Marina Marchak was last updated on September 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.