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

Charles Yi

Individual provider Internal Medicine Physician · NPI 1407506744

Charles Yi practises Internal Medicine in South Bend, Indiana. Graduated from University of Massachusetts Medical School in 2016, 10 years ago. Practices with Gmuc of Saraland, a 40-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
10
Trained at
University of Massachusetts Medical School
Licensed in
IN
In the registry since
2022
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Practice location Address checks out

615 N Michigan St Fl 1
South Bend, IN 46601-1033
Phone: (574) 647-3050
Fax: (574) 647-1091
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 600 East Blvd Fl 4, Elkhart, IN 46514-2483 — (574) 389-7393

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01100618A (IN)

Record details

NPI number1407506744
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 28, 2022
Last updated in NPPESAugust 31, 2026
Certification dateAugust 31, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2016 (10 years in practice)
Group practice Gmuc Of Saraland — 40 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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 patients40
Services billed 149 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 $321 14 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.

Colleagues at Gmuc of Saraland

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 40 clinicians in the practice; 12 are shown here.

Other providers in South Bend