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ZENA C POTASH M.D.
NPI 1700083284
Counselor - Professional in Walnut Creek, CA

Active since June 28, 2007Opted out of Medicare · through Jan 29, 2028
2930 CAMINO DIABLO, SUITE 200, WALNUT CREEK, CA 94597(925) 939-6238 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Zena C Potash M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ZENA C POTASH M.D. (NPI 1700083284) is an individual professional provider in Walnut Creek, California, licensed in California (A41821) and active in the NPI registry since June 2007. She has opted out of Medicare through January 29, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1700083284
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameZENA C POTASHCredential: M.D.
Location Address2930 CAMINO DIABLO, SUITE 200Walnut Creek, CA 94597-3986
Mailing Address2930 Camino Diablo, Suite 200Walnut Creek, CA 94597-3986
Phone(925) 939-6238
Sole ProprietorYes
Enumeration DateJune 28, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1700083284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in CA · A41821
2930 CAMINO DIABLO, Walnut Creek, CA 94597
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Zena C Potash M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 29, 2016 through January 29, 2028.

Opt-Out Effective DateJanuary 29, 2016
Opt-Out In Effect ThroughJanuary 29, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JIM (JAMES) WOLFE MFT
Marriage & Family Therapist
2930 CAMINO DIABLO, SUITE #200
WALNUT CREEK, CA 94597
Contra Costa County (925) 323-4113
KARYN GOLDBERG-BOLTZ PH.D.
Psychologist (Clinical)
2930 CAMINO DIABLO, SUITE 305B
WALNUT CREEK, CA 94597
Contra Costa County (925) 939-3909
DR. MARGARITA MERCEDES WOODBURY MD
Psychiatry & Neurology (Psychiatry)
2930 CAMINO DIABLO, SUITE 200
WALNUT CREEK, CA 94597
Contra Costa County (925) 938-3757
MS. DAWN ANNA GUGLIELLMINO LMFT
Marriage & Family Therapist
2930 CAMINO DIABLO, SUITE 310-D
WALNUT CREEK, CA 94597
Contra Costa County (925) 330-8518
SHANNON BRUECKNER MFT
Marriage & Family Therapist
2930 CAMINO DIABLO, SUITE 310
WALNUT CREEK, CA 94597
Contra Costa County (415) 710-9495
BRUECKNER COUNSELING
Community/Behavioral Health
2930 CAMINO DIABLO, SUITE 310
WALNUT CREEK, CA 94597
Contra Costa County (415) 710-9495
JOYCE CALDEIRA NCSP,LEP,LMFT,LPCC
Marriage & Family Therapist
2930 CAMINO DIABLO, SUITE 100-B
WALNUT CREEK, CA 94597
Contra Costa County (925) 250-3078
MARY ELLEN PHALON LMFT
Counselor (Mental Health)
2930 CAMINO DIABLO, SUITE 310-C
WALNUT CREEK, CA 94597
Contra Costa County (925) 322-9305

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 Zena Potash's NPI number?

The NPI number for Zena Potash is 1700083284. It was assigned to this individual provider in the NPPES registry on June 28, 2007.

Where is Zena Potash located?

Zena Potash practices at 2930 Camino Diablo Suite 200, Walnut Creek, CA 94597. The listed phone number is (925) 939-6238.

What is Zena Potash's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Zena Potash enrolled in Medicare?

No. Zena Potash has opted out of Medicare through January 29, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Zena Potash was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.