Dr. Mark P. Langer, MD
- Medicare services, 2024
- 1,881
- Medicare patients, 2024
- 189
- Part D claims, 2024
- 38
- Publications
- 26
- Clinical trials
- 2
- Practice address
- 1701 N Senate Blvd, Indianapolis, IN 46202
- Practice phone
- Call (317) 962-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Langer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark P. Langer is a radiation oncologist in Indianapolis, Indiana
Dr. Langer practices at IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health.
Dr. Langer's NPI, 1528022746, was assigned on April 14, 2006. Dr. Langer graduated from University of Chicago, Pritzker School of Medicine in 1981. Dr. Langer holds Indiana license 01047506.
- NPI
- 1528022746NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981768231
- NPI enumeration date
- April 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 962-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark P. Langer practices at IU Health Methodist Hospital in Indianapolis, Indiana
Dr. Langer's primary practice is IU Health Methodist Hospital, at 1701 N Senate Blvd, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 962-2000.
- IU Health Methodist Hospital1701 N Senate Blvd, Indianapolis, IN 46202 · Marion CountyPhone(317) 962-2000
Source: Dmand AI Affiliation Data
Dr. Mark P. Langer is affiliated with 6 sites of care and 2 medical groups
Dr. Langer's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dr. Langer is also affiliated with IU Health North Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Langer to 1 more hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark P. Langer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Langer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Methodist Hospital | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark P. Langer is one of 121 radiation oncologists in Indiana
Radiation oncology is Dr. Langer's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Langer is licensed in Indiana.
Specialties and state licenses
- Radiation oncology, IndianaPrimary
Radiation oncologists near Dr. Langer
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark P. Langer billed Medicare for 1,881 services in 2024
CMS data shows 1,881 Medicare services from Dr. Langer across 19 procedure codes in 2024, for 189 Medicare patients. Medicare paid $112,135 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Langer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 8332024: 1,13336%
- Other services
- 2023: 4402024: 54724%
- Office and hospital visits
- 2023: 1792024: 20112%
Dr. Langer compared with the Indiana median for radiation oncologists, 2024
- Dr. Langer
- Indiana median
- Medicare services
- 1,881vs 1,41633% above
- Medicare patients
- 189vs 192Close to median
Medians across 120 radiation oncologists in Indiana with Dmand AI profiles that report each measure.
Dr. Langer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Langer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Langer and other radiation oncologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark P. Langer treated 189 Medicare patients in 2024, average age 73
CMS counts 189 Medicare patients who saw Dr. Langer in 2024. The largest group is 65 to 74, with 80 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Langer's median patient age at 67, with 42% women.
Dr. Langer's Medicare patients by age, 2024
Dr. Langer's Medicare patients by sex, 2024
- Women8344%
- Men10656%
Chronic conditions among Dr. Langer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Cancer54%
- Arthritis43%
- Mood disorders35%
- Depression34%
- Ischemic heart disease33%
- Diabetes30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Langer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark P. Langer wrote 38 Medicare Part D claims in 2024
In 2024, Dr. Langer wrote 38 Medicare Part D claims for 27 patients. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark P. Langer takes part in Medicare
Dr. Langer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark P. Langer has 26 publications on record
Dmand AI links 26 papers to Dr. Langer, published from 2012 to 2024. 2023 was the busiest year, with 6. The most frequent topics are Radiosurgery, Radiotherapy Dosage and Lung Neoplasms. Dr. Langer has published most often in Proc ASME Des Eng Tech Conf. Dr. Langer's most frequent co-authors are Mona Arbab, MD, Kevin Ren-Yeh Shiue, MD and Gregory Andrew Durm, MD.
Dr. Langer's papers by year, 2012 to 2024
Topics Dr. Langer writes about most
- Radiosurgery
- Radiotherapy Dosage
- Lung Neoplasms
- Radiotherapy Planning, Computer-Assisted
- Carcinoma, Non-Small-Cell Lung
- Radiotherapy, Intensity-Modulated
- Cell Line, Tumor
- Nanoparticles
Dr. Langer's most frequent co-authors
- Mona Arbab, MD7 shared papers
- Kevin Ren-Yeh Shiue, MD5 shared papers
- Gregory Andrew Durm, MD4 shared papers
Recent publications by Dr. Langer
Int J Mech Robot Syst
Proc ASME Des Eng Tech Conf
See who Dr. Langer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Langer works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark P. Langer has worked on 2 clinical trials
Dmand AI links Dr. Langer to 2 clinical trials. Conditions studied include Cholangiocarcinoma, Tongue Neoplasms and Adenocarcinoma.
Conditions in Dr. Langer's trials
- Cholangiocarcinoma
- Tongue Neoplasms
- Adenocarcinoma
- Tongue Diseases
Investigators on the most trials with Dr. Langer
- Christopher James Anker, MD1 shared trial
- Michael F. Bassetti1 shared trial
- Eugene J. Koay, MD, PhD1 shared trial
Recent clinical trials with Dr. Langer
Randomized Phase III Study of Focal Radiation Therapy for Unresectable, Localized Intrahepatic Cholangiocarcinoma (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Mark P. Langer received $18 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Langer from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Eisai Inc. paid the most, $18.
Companies that paid Dr. Langer the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark P. Langer graduated from University of Chicago, Pritzker School of Medicine
Dr. Langer graduated from University of Chicago, Pritzker School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark P. Langer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark P. Langer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark P. Langer's NPI number?
Dr. Mark P. Langer's NPI number is 1528022746. It was assigned on April 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark P. Langer?
Dr. Mark P. Langer is a radiation oncologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Mark P. Langer practice?
Dr. Langer practices at 1701 N Senate Blvd, Indianapolis, IN 46202. Dr. Langer's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dmand AI also links Dr. Langer to 1 hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group.
What is Dr. Mark P. Langer's office phone number?
The practice phone on file for Dr. Langer is (317) 962-2000.
What is Dr. Mark P. Langer's medical license number?
Dr. Langer holds Indiana license 01047506.
Which hospitals is Dr. Mark P. Langer affiliated with?
Dr. Langer practices at IU Health Methodist Hospital in Indianapolis, Indiana. Dr. Langer is also affiliated with IU Health North Hospital. Dmand AI links Dr. Langer to 1 more hospital.
What medical group is Dr. Mark P. Langer part of?
Dr. Langer is linked to IU Health Medical Group. Dmand AI links Dr. Langer to 1 more medical group.
Does Dr. Mark P. Langer accept Medicare?
Yes. CMS data shows Dr. Langer billed Medicare for 1,881 services in 2024, and Dr. Langer accepts Medicare assignment.
How many Medicare patients does Dr. Mark P. Langer see?
CMS counts 189 Medicare patients who saw Dr. Langer in 2024, with an average age of 73.
What services does Dr. Mark P. Langer bill to Medicare?
In 2024, Dr. Langer's most billed Medicare services were medicare service (G6002), radiation oncology (77014) and radiation oncology (77334).
Show 5 more questionsShow fewer questions
Where did Dr. Mark P. Langer go to medical school?
Dr. Langer graduated from University of Chicago, Pritzker School of Medicine in 1981.
Has Dr. Mark P. Langer received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Langer from 1 company from 2018 to 2018. The largest total came from Eisai Inc.
How long has Dr. Mark P. Langer been practicing?
Dr. Langer graduated from medical school in 1981, 45 years ago.
Does Dr. Mark P. Langer do research?
Dmand AI links 26 publications to Dr. Langer, published from 2012 to 2024. Dr. Langer has worked on 2 clinical trials.
Who does Dr. Mark P. Langer publish with?
Dr. Langer's most frequent co-authors are Mona Arbab, MD (7 shared papers), Kevin Ren-Yeh Shiue, MD (5 shared papers) and Gregory Andrew Durm, MD (4 shared papers).
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