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MR. JUSTIN DORIAN GREY MD
NPI 1992898753
Psychiatry & Neurology - Psychiatry in San Jose, CA

Active since October 02, 2006Opted out of Medicare · through Jul 1, 2027
2001 THE ALAMEDA, ALLIANCE FOR COMMUNITY CARE, SAN JOSE, CA 95126(408) 261-7777(408) 554-9960 Get Directions Write a Review

NPPES record last updated: March 19, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. Justin Dorian Grey Md NPPES

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

MR. JUSTIN DORIAN GREY MD (NPI 1992898753) is an individual psychiatry provider in San Jose, California, licensed in California (G65957) and active in the NPI registry since October 2006. He has opted out of Medicare through July 1, 2027.

NPPES Registry Identity

NPI1992898753
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameMR. JUSTIN DORIAN GREYCredential: MD
Location Address2001 THE ALAMEDA, ALLIANCE FOR COMMUNITY CARESan Jose, CA 95126-1136
Mailing Address2001 The Alameda, Alliance For Community CareSan Jose, CA 95126-1136 · (408) 261-7777 · Fax (408) 554-9960
Phone(408) 261-7777
Fax(408) 554-9960
Sole ProprietorNo
Enumeration DateOctober 2, 2006
Last NPPES UpdateMarch 19, 2008
✔ NPI 1992898753 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · G65957
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.
Also ListedPsychiatry & Neurology · Forensic PsychiatryTaxonomy 2084F0202X · License G65957 (CA)
Also ListedPsychiatry & Neurology · Addiction PsychiatryTaxonomy 2084P0802X · License G65957 (CA)
Also ListedPsychiatry & Neurology · Child & Adolescent PsychiatryTaxonomy 2084P0804X · License G65957 (CA)
Also ListedPsychiatry & Neurology · Geriatric PsychiatryTaxonomy 2084P0805X · License G65957 (CA)
2001 THE ALAMEDA, San Jose, CA 95126
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Other Identifiers 3

Medicare ID-Type UnspecifiedZZZ01125ZGrp Id
Other00G659571Ppin
Medicare UPINF19647

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mr. Justin Dorian Grey Md 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 July 1, 2025 through July 1, 2027.

Opt-Out Effective DateJuly 1, 2025
Opt-Out In Effect ThroughJuly 1, 2027Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 20

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

EDNA STOK
Student in an Organized Health Care Education/Training Program
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
JENNIFER BALGOS SANTANDER
Licensed Vocational Nurse
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
MRS. SUSAN MARKHAM
Case Manager/Care Coordinator
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
MS. TANNAZ HOVEYDA MA
Rehabilitation Practitioner
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
ROYCE CULLA
Counselor (Mental Health)
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
LINH NGUYEN
Case Manager/Care Coordinator
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
FRANCISCO E GUMATAOTAO
Case Manager/Care Coordinator
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777
KEVIN CHENG ASW
Social Worker (Clinical)
2001 THE ALAMEDA
SAN JOSE, CA 95126
Santa Clara County (408) 261-7777

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 Justin Grey's NPI number?

The NPI number for Justin Grey is 1992898753. It was assigned to this individual provider in the NPPES registry on October 2, 2006.

Where is Justin Grey located?

Justin Grey practices at 2001 The Alameda Alliance For Community Care, San Jose, CA 95126. The listed phone number is (408) 261-7777.

What is Justin Grey's specialty?

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

Is Justin Grey enrolled in Medicare?

No. Justin Grey has opted out of Medicare through July 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Justin Grey was last updated on March 19, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.