Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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John Tayek, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1649389644

John Tayek, MD is an Endocrinology in Torrance, California. Graduated from Wayne State University School of Medicine in 1980, 46 years ago. Practices with County of Los Angeles, a 390-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
46
Trained at
Wayne State University School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

21840 Normandie Ave
Torrance, CA 90502-2047
Phone: (310) 222-5101
Fax: (310) 320-5463
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence G45140 (CA)

Record details

NPI number1649389644
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESJuly 9, 2007
Mailing address21840 Normandie Ave, Torrance, CA 90502-2047

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyENDOCRINOLOGY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice County Of Los Angeles — 390 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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