DR. NISSA MARIE KEYASHIAN M.D.
NPI 1508032335
Psychiatry & Neurology - Psychiatry in San Jose, CA

Q: What is Nissa Keyashian's NPI number?

The NPI number for Nissa Keyashian is 1508032335. It was assigned to this individual provider in the NPPES registry on May 1, 2008.

Q: What is Nissa Keyashian's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: Is Nissa Keyashian enrolled in Medicare?

No. Nissa Keyashian has opted out of Medicare through October 16, 2026. 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.

Q: When was this NPI record last updated?

The NPPES record for Nissa Keyashian was last updated on July 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since May 01, 2008Opted out of Medicare · through Oct 16, 2026

1101 S WINCHESTER BLVD STE A101, SAN JOSE, CA 95128(408) 854-8180(408) 484-6377 Get Directions Write a Review

NPPES record last updated: July 15, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Nissa Marie Keyashian M.d. NPPES

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

DR. NISSA MARIE KEYASHIAN M.D. (NPI 1508032335) is an individual psychiatry provider in San Jose, California, licensed in California (A113773) and active in the NPI registry since May 2008. She has opted out of Medicare through October 16, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1508032335

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameDR. NISSA MARIE KEYASHIANCredential: M.D.

Location Address1101 S WINCHESTER BLVD STE A101San Jose, CA 95128-3914

Mailing Address1101 S Winchester Blvd Ste A101San Jose, CA 95128-3914 · (408) 854-8180 · Fax (408) 484-6377

Phone(408) 854-8180

Fax(408) 484-6377

Sole ProprietorYes

Enumeration DateMay 1, 2008

Last NPPES UpdateJuly 15, 2021

NPPES CertifiedJuly 15, 2021

✔ NPI 1508032335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · A113773

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1101 S WINCHESTER BLVD STE A101, San Jose, CA 95128

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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

Dr. Nissa Marie Keyashian 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 October 16, 2018 through October 16, 2026.

Opt-Out Effective DateOctober 16, 2018

Opt-Out In Effect ThroughOctober 16, 2026Opt-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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95128 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$206.04 typical visit price

range $70.37 – $206.04

Typical copayment $51.51 (range $17.59 – $51.51)

Most-billed visit code 99205

Established Patient

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 11

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

JACA-LYNN AULMAN

Social Worker (Clinical)