HOLLAND ST. JOHN
NPI 1609884931
Internal Medicine in Sunnyvale, CA

Q: What is Holland St. John's NPI number?

The NPI number for Holland St. John is 1609884931. It was assigned to this individual provider in the NPPES registry on August 3, 2006.

Q: What is Holland St. John's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Holland St. John 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 August 03, 2006

301 OLD SAN FRANCISCO RD, SUNNYVALE, CA 94086(408) 739-6000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Holland St. John NPPES

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

HOLLAND ST. JOHN (NPI 1609884931) is an individual internal medicine provider in Sunnyvale, California, licensed in California (C50723) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1609884931

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameHOLLAND ST. JOHN

Location Address301 OLD SAN FRANCISCO RDSunnyvale, CA 94086-6386

Mailing Address301 Old San Francisco RdSunnyvale, CA 94086-6386

Phone(408) 739-6000

Sole ProprietorNo

Enumeration DateAugust 3, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1609884931 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 · C50723

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.

301 OLD SAN FRANCISCO RD, Sunnyvale, CA 94086

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Other Identifiers 1

Medicare UPINB26640CA

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. TAN MICHAEL NGUYEN MD

Internal Medicine