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

Mark P Langer, MD

Individual provider Radiation Oncology Physician · NPI 1528022746

Mark P Langer, MD practises Radiation Oncology in Indianapolis, Indiana. Graduated from University of Chicago, Pritzker School of Medicine in 1981, 45 years ago. Practices with University Radiation Oncology Associates, Inc, a 15-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Indiana.

Years since qualifying
45
Trained at
University of Chicago, Pritzker School of Medicine
Licensed in
IN
In the registry since
2006
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

550 University Blvd
Indianapolis, IN 46202-5149
Phone: (317) 944-2524
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 01047506 (IN)

Record details

NPI number1528022746
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2006
Last updated in NPPESMarch 16, 2021
Certification dateMarch 16, 2021

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 1981 (45 years in practice)
Group practice University Radiation Oncology Associates, Inc. — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients189
Services billed 1,914 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University Radiation Oncology Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 15 clinicians in the practice; 8 are shown here.

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