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

Kevin Tzay-Jyh Tan, MD

Individual provider Anesthesiology Physician · NPI 1609338029

Kevin Tzay-Jyh Tan, MD practises Anesthesiology in Orange, California. Graduated from Medical College of Wisconsin in 2019, 7 years ago. Practices with Regents of the University Of, a 233-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
7
Trained at
Medical College of Wisconsin
Licensed in
CA
In the registry since
2019
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

333 City Blvd W Ste 2150
Orange, CA 92868-5920
Phone: (714) 456-6661
Fax: (714) 456-7702
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 177253 (CA)

Record details

NPI number1609338029
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 3, 2019
Last updated in NPPESOctober 12, 2022
Certification dateOctober 12, 2022

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2019 (7 years in practice)
Group practice Regents Of The University Of — 233 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients59
Services billed 79 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Regents of the University Of

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 233 clinicians in the practice; 12 are shown here.

Other providers in Orange