MARINA A. ZELENKO MD
NPI 1912084864
Psychiatry & Neurology - Child & Adolescent Psychiatry in Cupertino, CA
About Marina A. Zelenko Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARINA A. ZELENKO MD (NPI 1912084864) is an individual child & adolescent psychiatry provider in Cupertino, California, licensed in California (A53605) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marina A. Zelenko Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marina Zelenko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 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.
CUPERTINO, CA 95014
CUPERTINO, CA 95014
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 Zelenko's NPI number?
The NPI number for Marina Zelenko is 1912084864. It was assigned to this individual provider in the NPPES registry on October 31, 2006.
Where is Marina Zelenko located?
Marina Zelenko practices at 19000 Homestead Rd, Cupertino, CA 95014. The listed phone number is (408) 366-4450.
What is Marina Zelenko's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Marina Zelenko enrolled in Medicare?
Yes. Marina Zelenko is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marina Zelenko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marina Zelenko reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Marina Zelenko'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 Zelenko was last updated on December 6, 2021. 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.
# Marina A. Zelenko, MD · NPI 1912084864
Child & Adolescent Psychiatry physician in Cupertino, California. Individual provider, active in the CMS NPPES registry since October 31, 2006.
## Identity
- **NPI:** 1912084864 (Entity type: Individual)
- **Enumerated:** October 31, 2006
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** A53605 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 19000 HOMESTEAD RD, Cupertino, CA 95014-0712
- **Phone:** (408) 366-4450
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 6, 2021
- **Other identifiers:** Medicaid 00A536050 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1912084864) · Data from the CMS NPPES public registry.