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DR. JOHN M TSAO SR. MD
NPI 1194736082
Internal Medicine - Endocrinology, Diabetes & Metabolism in Torrance, CA

Active since August 10, 2006
20911 EARL ST STE 340, TORRANCE, CA 90503(310) 542-6333(310) 542-4695 Get Directions Write a Review

NPPES record last updated: August 2, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. John M Tsao Sr. Md NPPES

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

DR. JOHN M TSAO SR. MD (NPI 1194736082) is an individual endocrinology, diabetes & metabolism provider in Torrance, California, licensed in California (C23235) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1194736082
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. JOHN M TSAO SR.Credential: MD
Location Address20911 EARL ST STE 340Torrance, CA 90503-4354
Mailing Address20911 Earl St Ste 340Torrance, CA 90503-4354 · (310) 542-6333 · Fax (310) 542-4695
Phone(310) 542-6333
Fax(310) 542-4695
Sole ProprietorYes
Enumeration DateAugust 10, 2006
Last NPPES UpdateAugust 2, 2013
✔ NPI 1194736082 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · C23235
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
20911 EARL ST STE 340, Torrance, CA 90503
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Other Identifiers 6

Medicare UPINA32343CA
Medicare PINDS319YCA
Medicaid1194736082CA
Medicare PINDS319XCA
Medicare ID-Type UnspecifiedC23235CA
Medicaid00C232350CA

Other Providers at the Same Location NPPES 3

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

JOHN M TSAO INC
Internal Medicine (Endocrinology, Diabetes & Metabolism)
20911 EARL ST STE 340
TORRANCE, CA 90503
Los Angeles County (310) 542-6333
DR. GORDON F SCHAYE MD
Otolaryngology
20911 EARL ST STE 340
TORRANCE, CA 90503
Los Angeles County (310) 540-2111
DR. DAVID MENDEL BRUSS MD
Otolaryngology
20911 EARL ST STE 340
TORRANCE, CA 90503
Los Angeles County (310) 731-2009

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 Tsao's NPI number?

The NPI number for John Tsao is 1194736082. It was assigned to this individual provider in the NPPES registry on August 10, 2006.

Where is John Tsao located?

John Tsao practices at 20911 Earl St Ste 340, Torrance, CA 90503. The listed phone number is (310) 542-6333.

What is John Tsao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

When was this NPI record last updated?

The NPPES record for John Tsao was last updated on August 2, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.