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

Dr. Michael Fenlon, MD

Individual provider Transplant Surgery Physician · NPI 1851779052

Dr. Michael Fenlon, MD practises General Surgery in Chicago, Illinois. Graduated from University of California, Irvine, California College of Medicine in 2013, 13 years ago. Practices with University of Utah Adult Services, a 1,740-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, Illinois and Utah.

Years since qualifying
13
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA, IL, UT
In the registry since
2015
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

225 E Chicago Avenue BOX#57
Chicago, IL 60611
Phone: (312) 227-4646
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1520 San Pablo St # 3400, Los Angeles, CA 90033-5310 — (323) 442-9064

Specialties & licences

Transplant Surgery Physician (primary) Taxonomy 204F00000X · Licence 14158197-1235 (UT)
Pediatric Surgery Physician Taxonomy 2086S0120X · Licence 036166547 (IL)
Surgery Physician Taxonomy 208600000X · Licence 135974 (CA)

Record details

NPI number1851779052
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 8, 2015
Last updated in NPPESDecember 5, 2025
Certification dateDecember 5, 2025

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice University Of Utah Adult Services — 1740 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 $104 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Utah Adult Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1740 clinicians in the practice; 12 are shown here.

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