Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. KOU-YING HSIEH M.D.
NPI 1447208731
Internal Medicine in Emeryville, CA

Active since May 05, 2006
1250 45TH ST, EMERYVILLE, CA 94608(510) 596-8988(510) 596-8956 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Dr. Kou-ying Hsieh M.d. NPPES

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

DR. KOU-YING HSIEH M.D. (NPI 1447208731) is an individual internal medicine provider in Emeryville, California, licensed in California (A86471) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1447208731
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. KOU-YING HSIEHCredential: M.D.
Location Address1250 45TH STEmeryville, CA 94608-2924
Mailing Address3173 Cherry Valley CirFairfield, CA 94534-7512
Fax(510) 596-8956
Sole ProprietorNo
Enumeration DateMay 5, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1447208731 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 · A86471
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.

1250 45TH ST, Emeryville, CA 94608

Other Identifiers 1

Medicaid00A864710CA

Other Providers at the Same Location NPPES 8

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

Anesthesiology
1250 45TH ST, STE 355
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST, STE 355
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST, STE 355
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST, STE 355
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST, STE 355
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST, STE 355
EMERYVILLE, CA 94608
Internal Medicine
1250 45TH ST, STE 355
EMERYVILLE, CA 94608

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447208731, enumerated as an "individual" on May 05, 2006.

The provider is located at 1250 45TH ST EMERYVILLE, CA 94608 and the phone number is (510) 596-8988.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.