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

Mark Francis, MD

Individual provider Internal Medicine Physician · NPI 1104356039

Mark Francis, MD practises Internal Medicine in Chicago, Illinois. Graduated from University of Texas Medical Branch at Galveston in 2017, 9 years ago. Practices with Mass General Brigham Medical Group Suburban Massachusetts Inc, a 532-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Illinois.

Years since qualifying
9
Trained at
University of Texas Medical Branch at Galveston
Licensed in
CA, IL
In the registry since
2017
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

1650 W Harrison St
Chicago, IL 60612-3800
Phone: (312) 942-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 200 W Arbor Dr, San Diego, CA 92103-9000 — (800) 926-8273

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A175252 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125071108 (IL)

Record details

NPI number1104356039
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2017
Last updated in NPPESJuly 21, 2022
Certification dateJanuary 7, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 2017 (9 years in practice)
Group practice Mass General Brigham Medical Group Suburban Massachusetts Inc — 532 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 patients402
Services billed 416 a service is one billed item, such as a visit, a test or a procedure
Average patient age80

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.

Colleagues at Mass General Brigham Medical Group Suburban Massachusetts Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 532 clinicians in the practice; 12 are shown here.

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