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

James Peng, MD

Individual provider Emergency Medicine Physician · NPI 1780871780

James Peng, MD practises Emergency Medicine in Chippewa Falls, Wisconsin. Graduated from State University of New York Downstate Medical Center in 2006, 20 years ago. Practices with Vituity-Wisconsin Em SC, a 57-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California, Indiana, New York and Wisconsin.

Years since qualifying
20
Trained at
State University of New York Downstate Medical Center
Licensed in
CA, IN, NY, WI
In the registry since
2007
Specialties on file
4
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

2661 County Highway I
Chippewa Falls, WI 54729-5407
Phone: (715) 723-1811
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 900 W Clairemont Ave, Eau Claire, WI 54701-6122 — (715) 717-4121
  • 1400 Bellinger St, Eau Claire, WI 54703-5222 — (715) 838-5222

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 65480-20 (WI)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 257256-1 (NY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence A101720 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 01083951A (IN)

Record details

NPI number1780871780
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 3, 2007
Last updated in NPPESJuly 22, 2022
Certification dateJuly 22, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 2006 (20 years in practice)
Group practice Vituity-Wisconsin Em Sc — 57 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 patients53
Services billed 80 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.

  • Hshs St Clare Memorial Hospital Hospital · Oconto Falls, WI · listed as St Clare Memorial Hospital, Inc
  • Chi St Alexius Health Williston Hospital · Williston, ND

Colleagues at Vituity-Wisconsin Em SC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 57 clinicians in the practice; 12 are shown here.

Other providers in Chippewa Falls