DR. JOHN EDWARD RUARK M. D.
NPI 1235294968
Psychiatry & Neurology - Psychiatry in Menlo Park, CA

Q: What is John Ruark's NPI number?

The NPI number for John Ruark is 1235294968. It was assigned to this individual provider in the NPPES registry on December 22, 2006.

Q: What is John Ruark's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for John Ruark was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 December 22, 2006

885 OAK GROVE AVE, SUITE 301, MENLO PARK, CA 94025(650) 327-7100(650) 327-1420 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. John Edward Ruark M. D. NPPES

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

DR. JOHN EDWARD RUARK M. D. (NPI 1235294968) is an individual psychiatry provider in Menlo Park, California, licensed in California (G50171) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1235294968

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. JOHN EDWARD RUARKCredential: M. D.

Location Address885 OAK GROVE AVE, SUITE 301Menlo Park, CA 94025-4433

Mailing Address885 Oak Grove Avenue, Suite 301Menlo Park, CA 94025 · (650) 327-7100 · Fax (650) 327-1420

Phone(650) 327-7100

Fax(650) 327-1420

Sole ProprietorYes

Enumeration DateDecember 22, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1235294968 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 · G50171

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.

885 OAK GROVE AVE, Menlo Park, CA 94025

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Other Identifiers 1

Medicare UPINA 89911CA

Other Providers at the Same Location NPPES 15

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

DR. THOMAS GERARD PLANTE PH.D.

Psychologist (Clinical)

885 OAK GROVE AVE, SUITE 203
MENLO PARK, CA 94025

San Mateo County (408) 554-4471

REITMAN PHYSICAL THERAPY

Physical Therapist

885 OAK GROVE AVE, STE. 101
MENLO PARK, CA 94025

San Mateo County (650) 328-2250

MARGARET GORDON MD

Psychiatry & Neurology (Psychiatry)

885 OAK GROVE AVE, 201
MENLO PARK, CA 94025

San Mateo County (650) 326-2150

PENELOPE SCHREIBER LCSW

Social Worker (Clinical)

885 OAK GROVE AVE, STE 304-1
MENLO PARK, CA 94025

San Mateo County (650) 325-3065

DR. LORI GOLDFARB PLANTE PHD

Psychologist (Clinical)

885 OAK GROVE AVE, 203
MENLO PARK, CA 94025

San Mateo County (650) 326-5930

MS. CATHERINE M. MORRIS

Marriage & Family Therapist

885 OAK GROVE AVE, SUITE 207
MENLO PARK, CA 94025

San Mateo County (650) 508-8926

SHANELLE GALI

Nurse Practitioner (Family)

885 OAK GROVE AVE
MENLO PARK, CA 94025

San Mateo County (650) 308-4862

MS. BARBARA KINSEY MFT

Counselor (Mental Health)

885 OAK GROVE AVE, SUITE 212
MENLO PARK, CA 94025

San Mateo County (650) 326-2020

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 John Ruark's NPI number?

The NPI number for John Ruark is 1235294968. It was assigned to this individual provider in the NPPES registry on December 22, 2006.

Where is John Ruark located?

John Ruark practices at 885 Oak Grove Ave Suite 301, Menlo Park, CA 94025. The listed phone number is (650) 327-7100.

What is John Ruark's specialty?

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

When was this NPI record last updated?

The NPPES record for John Ruark was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.