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

Individual provider Internal Medicine Physician · NPI 1528088937

Choon-Weng Chan, MD practises Internal Medicine in Elk Grove, California. Qualified in 2001, 25 years ago. Practices with Dignity Health Medical Foundation, a 1,204-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California and Massachusetts.

Years since qualifying
25
Licensed in
CA, MA
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

8220 Wymark Dr
Elk Grove, CA 95757-6297 Not confirmed with CMS for 12 years — call before visiting
Phone: (916) 667-0600
Fax: (916) 683-0232
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C129586 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 227845 (MA)

Record details

NPI number1528088937
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 20, 2006
Last updated in NPPESJuly 10, 2014

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Dignity Health Medical Foundation — 1204 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients432
Services billed 2,265 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

  • Methodist Hospital Of Sacramento Hospital · Sacramento, CA · listed as Methodist Hospital
  • Sutter Medical Center, Sacramento Hospital · Sacramento, CA · listed as Sutter Medical Center Sacramento
  • American River Home Care Home health agency · Sacramento, CA
  • Sonder Home Health Care Home health agency · Sacramento, CA · listed as Sonder Home Care Inc
  • Mercy General Hospital Hospital · Sacramento, CA
  • A1 Home Health Home health agency · Fair Oaks, CA
  • Mercy Home Health Home health agency · Rancho Cordova, CA
  • Sutter Care At Home Home health agency · Sacramento, CA

Colleagues at Dignity Health Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1204 clinicians in the practice; 12 are shown here.

Other providers in Elk Grove