Robert C. Landgren, M.D.
Radiation Oncology Physician · Little Rock, AR
Robert C. Landgren, M.D. is a radiation oncology physician with a practice address in Little Rock, Arkansas, and NPI 1871825612, issued on Feb 4, 2010. Check the license (Arkansas R-3140, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert C. Landgren
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- R-3140 AR
Self-reported in NPPES; status is on the state search - Practice location
- 37 Pinehurst Cir, Little Rock, AR 72212
- Phone
- (501) 225-6082
- Enumerated
- Feb 4, 2010
- Record last updated
- Feb 4, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 105167001 AR
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 49 in Arkansas → Look up another NPI →
Verify Robert C. Landgren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license R-3140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average radiation oncology physician in 2024
40 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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.
Robert C. Landgren among 49 radiation oncology physician records in Arkansas
Robert C. Landgren, M.D. is one of 49 radiation oncology physician records with a practice address in Arkansas. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 55% of them.
- NPI issued2010 · 55% of these records are older, 41% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 78% of these records are
- Record last updated2010 · 35% 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 Arkansas 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 Arkansas
There are 49 radiation oncology physician records in Arkansas.
All 49 in Arkansas → Every provider in Little Rock → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Alvah Nelson, M.D.Little Rock, AR 722121437383726
- Sondos Alkhatib, MDLittle Rock, AR 722051205446739
- Brent Cameron, M.D., PH.D.Little Rock, AR 722051265850325
- Hershel Garner, MDLittle Rock, AR 722051508839572
- Matthew Hardee, M.D., PH.D.Little Rock, AR 722051487896973
- Leslie Harrell, D.O., M.S.Little Rock, AR 722051811208010
- Sanjay Maraboyina, M.D.Little Rock, AR 722051730388166
- Michael May, MDLittle Rock, AR 722051184011470
Common questions
What is Robert C. Landgren, M.D.'s NPI number?
Robert C. Landgren, M.D.'s National Provider Identifier (NPI) is 1871825612, issued on Feb 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Robert C. Landgren, M.D. located?
The NPPES record lists a practice address at 37 Pinehurst Cir, Little Rock, AR, 72212. Phone: (501) 225-6082. Providers update this record themselves, so call before visiting.
How can I verify Robert C. Landgren, M.D.'s license?
NPPES lists Arkansas license number R-3140, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert C. Landgren, M.D. prescribe under Medicare Part D?
In 2024, Robert C. Landgren, M.D. had 40 Medicare Part D claims; 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.