Zena C. Potash, M.D.
Professional Counselor · Walnut Creek, CA
Zena C. Potash, M.D. is a professional counselor with a practice address in Walnut Creek, California, and NPI 1700083284, issued on Jun 28, 2007. Check the license (California A41821, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zena C. Potash
- Credential
- M.D.
- Primary taxonomy
- Professional Counselor 101YP2500X
- License number
- A41821 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2930 Camino Diablo, Walnut Creek, CA 94597
- Phone
- (925) 939-6238
- Enumerated
- Jun 28, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest professional counselor records → All 3,965 in California → Look up another NPI →
Also registered at 2930 Camino Diablo
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mara JohnsonMental Health Counselor1568236669
- Mary Phalon, LMFTMental Health Counselor1245651868
Verify Zena C. Potash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A41821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
178 Medicare Part D claims are listed under this NPI for 2024
178 Medicare Part D claims for 17 beneficiaries. Brand-name drugs were 11% of claims.
CMS lists these Part D claims under this NPI, but the provider type reported to NPPES (professional counselor) is not one that prescribes. The claims may be attributed to the wrong NPI in the CMS file, or the NPPES taxonomy may be out of date; PlainDoctor does not compare them with other providers.
Most prescribed
- Quetiapine Fumarate21 claims
- Escitalopram Oxalate17 claims
- Invega Sustenna13 claims
- Paliperidone Er13 claims
- Trazodone Hcl13 claims
- Lamotrigine12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $482.12
4 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 5 providers of this specialty with any payment received $174.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Zena C. Potash among 3,965 professional counselor records in California
Zena C. Potash, M.D. is one of 3,965 professional counselor records with a practice address in California. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 2% of them.
- NPI issued2007 · 2% of these records are older, 93% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2007 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YP2500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Professional Counselor providers in California
There are 3,965 professional counselor records in California.
All 3,965 in California → Every provider in Walnut Creek → Professional Counselor nationwide →
The 8 professional counselor records with the nearest ZIP codes
- Stephanie Arganbright SimpsonWalnut Creek, CA 945971790269835
- Anna Oconnell, LPCC, BC-DMT, GL-CMAWalnut Creek, CA 945971144711698
- Kristina Cook, M.S.; LPCC; NCCWalnut Creek, CA 945961669013165
- Kathryn Jones, MFTWalnut Creek, CA 945961831253301
- Gagandip JudgeWalnut Creek, CA 945981255952677
- Rabia Khan, LPCCWalnut Creek, CA 945981427573674
- Windy TaylorWalnut Creek, CA 945961801482187
- Stefanie Magalong, LPCCWalnut Creek, CA 945951124499025
Common questions
What is Zena C. Potash, M.D.'s NPI number?
Zena C. Potash, M.D.'s National Provider Identifier (NPI) is 1700083284, issued on Jun 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Zena C. Potash, M.D. located?
The NPPES record lists a practice address at 2930 Camino Diablo, Walnut Creek, CA, 94597. Phone: (925) 939-6238. Providers update this record themselves, so call before visiting.
How can I verify Zena C. Potash, M.D.'s license?
NPPES lists California license number A41821, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Zena C. Potash, M.D. prescribe under Medicare Part D?
In 2024, Zena C. Potash, M.D. had 178 Medicare Part D claims for 17 beneficiaries; the average among professional counselor prescribers was 89. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.