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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOSEPH KIM RATHKEY
NPI 1811526312
Internal Medicine in Stanford, CA

Active since April 06, 2020
300 PASTEUR DRIVE, LANE 154, STANFORD, CA 94305(650) 723-6662(650) 498-6205 Get Directions Write a Review

NPPES record last updated: October 2, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Oct 2, 2026, Sep 14, 2026, Jul 27, 2026 and 1 more (4 updates tracked since 2020).

About Joseph Kim Rathkey NPPES

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

JOSEPH KIM RATHKEY (NPI 1811526312) is an individual internal medicine provider in Stanford, California, licensed in California (A180087) and active in the NPI registry since April 2020.

NPPES Registry Identity

NPI1811526312
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJOSEPH KIM RATHKEY
Location Address300 PASTEUR DRIVE, LANE 154Stanford, CA 94305-5133
Mailing Address300 Pasteur Drive Lane 154Stanford, CA 94305-5133 · (650) 723-6661 · Fax (650) 498-6205
Phone(650) 723-6662
Fax(650) 498-6205
Sole ProprietorNo
Enumeration DateApril 6, 2020
Last NPPES UpdateOctober 2, 20264 updates tracked since enumeration
NPPES CertifiedOctober 2, 2026
✔ NPI 1811526312 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A180087
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
300 PASTEUR DRIVE, LANE 154, Stanford, CA 94305
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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.

DR. GREGORY LAWRENCE BRANIGAN MD, PHD
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
TIMOTHY JOSEPH DAVIS M.D.
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
DR. VY HOANG NGUYEN MD
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
LAYLA J BARKAL
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
BRANDON ANTHONY DA SILVA MD
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
LOGAN ROBERT JEFFERSON BAILEY MD, PHD
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
SAMANTHA LINCOLN HAO
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
STANFORD, CA 94305
Santa Clara County (650) 723-6661
MAJESTY LEHUA GREER MD
Student in an Organized Health Care Education/Training Program
300 PASTEUR DRIVE, LANE 154
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 Joseph Rathkey's NPI number?

The NPI number for Joseph Rathkey is 1811526312. It was assigned to this individual provider in the NPPES registry on April 6, 2020.

Where is Joseph Rathkey located?

Joseph Rathkey practices at 300 Pasteur Drive, Lane 154, Stanford, CA 94305. The listed phone number is (650) 723-6662.

What is Joseph Rathkey's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Joseph Rathkey was last updated on October 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 days 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.