Joanna L. Zygmont, PSY.D.
Clinical Psychologist · San Leandro, CA
Joanna L. Zygmont, PSY.D. is a clinical psychologist with a practice address in San Leandro, California, and NPI 1578633491, issued on Nov 8, 2006. Check the license (California 24120, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joanna L. Zygmont
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 24120 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Estudillo Ave Ste 200, San Leandro, CA 94577
- Phone
- (510) 386-3632
- Enumerated
- Nov 8, 2006
- Record last updated
- Jul 14, 2026
- Medicare enrollment
- Enrolled (PECOS I20110722000595); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 400 Estudillo Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Karin Cooke, AMFTMarriage & Family Therapist1073335873
- Mpho Perras, LMFTMarriage & Family Therapist1942682794
Verify Joanna L. Zygmont in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 24120Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Alameda Health SystemOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joanna L. Zygmont among 12,647 clinical psychologist records in California
Joanna L. Zygmont, PSY.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2010 · median 2006 among the 2,424 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in California
There are 12,647 clinical psychologist records in California.
All 12,647 in California → Every provider in San Leandro → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Ryan Berman, PSY.D.San Leandro, CA 945771770649386
- Megan Erion, DOCTORAL CANDIDATESan Leandro, CA 945771952634230
- Loni Fillmore, PSYDSan Leandro, CA 945771932394459
- Bethany Friedman, PSY.D.San Leandro, CA 945771295984714
- Gregory Larson, PH.D.San Leandro, CA 945771174730618
- Veronique Lee, PSY.D.San Leandro, CA 945771598951311
- Elizabeth Nickels, M.A., PSY.D.San Leandro, CA 945771184882607
- Nancy Quiggle, PHDSan Leandro, CA 945771750504122
Common questions
What is Joanna L. Zygmont, PSY.D.'s NPI number?
Joanna L. Zygmont, PSY.D.'s National Provider Identifier (NPI) is 1578633491, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joanna L. Zygmont, PSY.D. located?
The NPPES record lists a practice address at 400 Estudillo Ave Ste 200, San Leandro, CA, 94577. Phone: (510) 386-3632. Providers update this record themselves, so call before visiting.
How can I verify Joanna L. Zygmont, PSY.D.'s license?
NPPES lists California license number 24120, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.