Nissa Marie Keyashian, M.D.
Psychiatry Physician · San Jose, CA
Nissa Marie Keyashian, M.D. is a psychiatry physician with a practice address in San Jose, California, and NPI 1508032335, issued on May 1, 2008. Check the license (California A113773, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nissa Marie Keyashian
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A113773 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1101 S Winchester Blvd Ste A101, San Jose, CA 95128
- Phone
- (408) 854-8180
- Enumerated
- May 1, 2008
- Record last updated
- Jul 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (408) 484-6377
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1101 S Winchester Blvd Ste A101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jaca-Lynn AulmanClinical Social Worker1124982848
- Maria Castaneda, MAMarriage & Family Therapist1619862208
- Elizabeth GoodingClinical Psychologist1932356128
- Lindsay HarkeClinical Social Worker1518771807
- Deborah Kjar, LMFTMarriage & Family Therapist1922467281
- Sharon Mead, MFTMarriage & Family Therapist1962782169
Verify Nissa Marie Keyashian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
48 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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.
Nissa Marie Keyashian among 8,673 psychiatry physician records in California
Nissa Marie Keyashian, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in San Jose → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Christine Chang, MDSan Jose, CA 951281033185798
- Hebe Estrella-Schultz, MDSan Jose, CA 951281619927340
- Christine Gartner, MDSan Jose, CA 951281427146547
- Kenneth Gee, MDSan Jose, CA 951281851489975
- Amarjit Grewal, MDSan Jose, CA 951281700840188
- David Johnson, MD,PHDSan Jose, CA 951281255395331
- Mya Kyaw, M.D.San Jose, CA 951281952408247
- Michael Meade, MDSan Jose, CA 951281689649881
Common questions
What is Nissa Marie Keyashian, M.D.'s NPI number?
Nissa Marie Keyashian, M.D.'s National Provider Identifier (NPI) is 1508032335, issued on May 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nissa Marie Keyashian, M.D. located?
The NPPES record lists a practice address at 1101 S Winchester Blvd Ste A101, San Jose, CA, 95128. Phone: (408) 854-8180. Providers update this record themselves, so call before visiting.
How can I verify Nissa Marie Keyashian, M.D.'s license?
NPPES lists California license number A113773, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nissa Marie Keyashian, M.D. prescribe under Medicare Part D?
In 2024, Nissa Marie Keyashian, M.D. had 48 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.