Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Alexander Y Chan, MD

Individual provider Internal Medicine Physician · NPI 1386722296

Alexander Y Chan, MD practises Internal Medicine in Stockton, California. Qualified in 1996, 30 years ago. Practices with Alexander Y Chan, MD Inc, a 3-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

4748 Saint Andrews Dr
Stockton, CA 95219
Phone: (209) 689-4607
Fax: (888) 250-8298
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A69498 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence A69498 (CA)

Record details

NPI number1386722296
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 1, 2006
Last updated in NPPESOctober 24, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Alexander Y Chan, Md Inc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients740
Services billed 2,597 a service is one billed item, such as a visit, a test or a procedure
Average patient age80

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. Those with a page here are linked.

Colleagues at Alexander Y Chan, MD Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Stockton