Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Brian Kap-Soo Kim, MD

Individual provider Internal Medicine Physician · NPI 1871532051

Dr. Brian Kap-Soo Kim, MD practises Hematology/Oncology in Sacramento, California. Graduated from University of Oklahoma College of Medicine in 1986, 40 years ago. Practices with Optum Medical Group Rhodes P C, a 55-clinician group and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
40
Trained at
University of Oklahoma College of Medicine
Licensed in
CA, WA
In the registry since
2006
Specialties on file
5
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

2800 L St Ste 300
Sacramento, CA 95816-7098
Phone: (916) 453-3300
Fax: (916) 453-3313
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence G88900 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD00044497 (WA)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence MD00044497 (WA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence MD00044497 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G88900 (CA)

Record details

NPI number1871532051
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 5, 2006
Last updated in NPPESMarch 7, 2023

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolUNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Optum Medical Group Rhodes P C — 55 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 patients558
Services billed 1,189 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $637 8 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Sutter Medical Center, Sacramento Hospital · Sacramento, CA · listed as Sutter Medical Center Sacramento
  • Mercy Medical Center Redding Hospital · Redding, CA
  • Sutter Auburn Faith Hospital Hospital · Auburn, CA

Colleagues at Optum Medical Group Rhodes P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 55 clinicians in the practice; 12 are shown here.

Other providers in Sacramento