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

Dr. Caroline Kim Kupfer, MD

Individual provider Internal Medicine Physician · NPI 1083643480

Dr. Caroline Kim Kupfer, MD practises Internal Medicine in Phoenix, Arizona. Graduated from Indiana University School of Medicine in 1992, 34 years ago. Practices with Salt River Pima-Maricopa Indian Community, a 42-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Connecticut.

Years since qualifying
34
Trained at
Indiana University School of Medicine
Licensed in
AZ, CT
In the registry since
2006
Specialties on file
3
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

500 W Thomas Rd Ste 900A
Phoenix, AZ 85013-4223
Phone: (602) 406-3540
Fax: (602) 406-7186
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2321 N. Wisconsin Avenue, Peoria, IL 61603 — (309) 680-7600

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 53837 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 037189 (CT)
Pediatrics Physician Taxonomy 208000000X · Licence 037189 (CT)

Record details

NPI number1083643480
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESJune 20, 2023
Certification dateJune 20, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Salt River Pima-Maricopa Indian Community — 42 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 patients115
Services billed 255 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.

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 $31 1 payment · 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.

Colleagues at Salt River Pima-Maricopa Indian Community

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 42 clinicians in the practice; 12 are shown here.

Other providers in Phoenix