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

Louis Philipson

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1093877540

Louis Philipson practises Endocrinology in Chicago, Illinois. Graduated from University of Chicago, Pritzker School of Medicine in 1986, 40 years ago. Practices with University of Chicago, a 1,681-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
40
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
IL
In the registry since
2006
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Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (888) 824-0200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 036079044 (IL)

Record details

NPI number1093877540
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 14, 2006
Last updated in NPPESOctober 24, 2022

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice University Of Chicago — 1681 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 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 patients91
Services billed 280 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Consulting Fee $11,875 2 payments
Travel and Lodging $2,180 8 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,005 15 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.

Colleagues at University of Chicago

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1681 clinicians in the practice; 12 are shown here.

Other providers in Chicago