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MR. SAMUEL CASTRO JR.
NPI 1770449522
Student in an Organized Health Care Education/Training Program in Stanford, CA

Active since December 24, 2025
401 QUARRY ROAD, ROOM 2204, STANFORD, CA 94305(650) 725-2769 Get Directions Write a Review

NPPES record last updated: May 7, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 7, 2026, Apr 8, 2026, Dec 24, 2025 (3 updates tracked since 2025).

About Mr. Samuel Castro Jr. NPPES

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

MR. SAMUEL CASTRO JR. (NPI 1770449522) is an individual student in an organized health care education/training program in Stanford, California and active in the NPI registry since December 2025. He maintains a secondary practice location in San Jose.

NPPES Registry Identity

NPI1770449522
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameMR. SAMUEL CASTRO JR.
Location Address401 QUARRY ROAD, ROOM 2204Stanford, CA 94305
Mailing Address248 Pamela Dr Apt 28Mountain View, CA 94040-3232 · (562) 889-4494
Phone(650) 725-2769
Sole ProprietorNo
Enumeration DateDecember 24, 2025
Last NPPES UpdateMay 7, 20263 updates tracked since enumeration
NPPES CertifiedMay 7, 2026
✔ NPI 1770449522 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
401 QUARRY ROAD, Stanford, CA 94305
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Secondary Practice Location 1

Location 1751 S Bascom AveSan Jose, CA 95128-2604 · Phone (408) 885-5000

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. JESSICA MEGAN JONES PSY.D.
Psychologist
401 QUARRY ROAD
STANFORD, CA 94305
Santa Clara County (650) 380-7223
DR. ANNE KERN WAKAMIYA M.D.
Internal Medicine (Geriatric Medicine)
401 QUARRY ROAD
STANFORD, CA 94305
Santa Clara County (650) 725-5591
DR. ERIC FRENETTE
Psychiatry & Neurology (Sleep Medicine)
401 QUARRY ROAD, SUITE 3301
STANFORD, CA 94305
Santa Clara County (650) 723-6601
THALIA ROBAKIS MD
Psychiatry & Neurology (Psychiatry)
401 QUARRY ROAD, DEPT OF PSYCHIATRY STANFORD UNIVERSITY
STANFORD, CA 94305
Santa Clara County (650) 724-9694
LISA EKEANYANWU MD
Psychiatry & Neurology (Psychiatry)
401 QUARRY ROAD
STANFORD, CA 94305
Santa Clara County (650) 725-5591
TOMASZ ALEKSANDER ROSSE M.D.
Psychiatry & Neurology (Psychiatry)
401 QUARRY ROAD, ROOM 2204
STANFORD, CA 94305
Santa Clara County (650) 725-5591
BEVERLY RODRIGUEZ M.D., PH.D.
Psychiatry & Neurology (Psychiatry)
401 QUARRY ROAD, STANFORD CHILD AND ADOLESCENT PSYCHIATRY
STANFORD, CA 94305
Santa Clara County (650) 723-5511
DR. AMIT ETKIN MD, PHD
Psychiatry & Neurology (Psychiatry)
401 QUARRY ROAD
STANFORD, CA 94305
Santa Clara County (650) 723-6661

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 Samuel Castro's NPI number?

The NPI number for Samuel Castro is 1770449522. It was assigned to this individual provider in the NPPES registry on December 24, 2025.

Where is Samuel Castro located?

Samuel Castro practices at 401 Quarry Road Room 2204, Stanford, CA 94305. The listed phone number is (650) 725-2769.

What is Samuel Castro's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for Samuel Castro was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.