John M. Martens, MD
Radiation Oncology Physician · Des Moines, IA
John M. Martens, MD is a radiation oncology physician with a practice address in Des Moines, Iowa, and NPI 1699852368, issued on Nov 1, 2006. Check the license (Iowa 34592, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John M. Martens
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 34592 IA
Self-reported in NPPES; status is on the state search - Practice location
- 411 Laurel St, Des Moines, IA 50314
- Phone
- (515) 643-5168
- Enumerated
- Nov 1, 2006
- Record last updated
- Nov 20, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (515) 643-5187
- Medicaid ID
- 0258079 IA
- Medicare enrollment
- Enrolled (PECOS I20080612000691); accepts Medicare assignment
- Medical or professional school
- University Of Nebraska College Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 67 in Iowa → Look up another NPI →
Also registered at 411 Laurel St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Johan Aerts, D.O.Surgery Physician1962683243
- Robert Albin, CRNACertified Registered Nurse Anesthetist1164542502
- Mohammed Aldosari, M.D.Pediatrics Physician1255690293
- Caleb Anderson, AGACNP-BCAcute Care Nurse Practitioner1902218324
- Martin Aronow, D.O.Interventional Cardiology Physician1497737282
- Brandon BarnhartCertified Registered Nurse Anesthetist1760067839
Verify John M. Martens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 34592Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average radiation oncology physician in 2024
115 Medicare Part D claims for 64 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Tamsulosin Hcl26 claims
- Hydrocodone-Acetaminophen12 claims
- Lidocaine Hcl Viscous11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $32.09
1 payment: food and beverage; the largest payer was Dendreon Pharmaceuticals LLC. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mercy Clinics IncDes Moines, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John M. Martens among 67 radiation oncology physician records in Iowa
John M. Martens, MD is one of 67 radiation oncology physician records with a practice address in Iowa. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.
- NPI issued2006 · 19% of these records are older, 63% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1997 · median 2010 among the 45 with a school on file
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Iowa
There are 67 radiation oncology physician records in Iowa.
All 67 in Iowa → Every provider in Des Moines → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Truston Bodine, MD, PHDDes Moines, IA 503141740787845
- Joseph Carmicheal, MD, PHDDes Moines, IA 503141871239921
- Philip Colletier, MDDes Moines, IA 503141760569412
- Richard Deming, MDDes Moines, IA 503141255418059
- Adam Gliniewicz, M.D.Des Moines, IA 503141669835914
- Sarah McAvoy, M.D.Des Moines, IA 503141144549015
- Emily Merfeld, MDDes Moines, IA 503141194222554
- George Voynov, MDDes Moines, IA 503141972694362
Common questions
What is John M. Martens, MD's NPI number?
John M. Martens, MD's National Provider Identifier (NPI) is 1699852368, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John M. Martens, MD located?
The NPPES record lists a practice address at 411 Laurel St, Des Moines, IA, 50314. Phone: (515) 643-5168. Providers update this record themselves, so call before visiting.
How can I verify John M. Martens, MD's license?
NPPES lists Iowa license number 34592, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John M. Martens, MD prescribe under Medicare Part D?
In 2024, John M. Martens, MD had 115 Medicare Part D claims for 64 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.