Gary L. Larson, M.D.
Radiation Oncology Physician · Oklahoma City, OK
Gary L. Larson, M.D. is a radiation oncology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1578599304, issued on Jun 23, 2006. Check the license (Oklahoma 13856, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Gary L. Larson
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 13856 OK
Self-reported in NPPES; status is on the state search - Practice location
- 5911 W Memorial RD, Oklahoma City, OK 73142
- Phone
- (405) 773-6530
- Enumerated
- Jun 23, 2006
- Record last updated
- May 21, 2024
- Medicaid ID
- 100088460A OK
- Medicare enrollment
- Enrolled (PECOS I20050825000854); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 56 in Oklahoma → Look up another NPI →
Also registered at 5911 W Memorial RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katie Barfield, COTA/L, CLTOccupational Therapy Assistant1386215192
- Shripal Bhavsar, MD, MBARadiation Oncology Physician1720254923
- Laurinda CrawfordRegistered Dietitian1730938044
- Seneca Dewbre, LACAcupuncturist1679969844
- Robert Gaston, DORadiation Oncology Physician1619946068
- Tyler Gutschenritter, MDRadiation Oncology Physician1285130716
Verify Gary L. Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 13856Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average radiation oncology physician in 2024
200 Medicare Part D claims for 57 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 60 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen21 claims
- Oxycodone Hcl19 claims
- Tamsulosin Hcl14 claims
- Megestrol Acetate13 claims
- Fentanyl11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $76.00
1 payment: food and beverage; the largest payer was Mim Software Inc. 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
- Radiation Medicine Associates, P.C.Oklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary L. Larson among 56 radiation oncology physician records in Oklahoma
Gary L. Larson, M.D. is one of 56 radiation oncology physician records with a practice address in Oklahoma. 70% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 43% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1981 · median 1998 among the 35 with a school on file
- Record last updated2024 · 57% 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 Oklahoma 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 Oklahoma
There are 56 radiation oncology physician records in Oklahoma.
All 56 in Oklahoma → Every provider in Oklahoma City → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Shripal Bhavsar, MD, MBAOklahoma City, OK 731421720254923
- Nancy Cersonsky, MDOklahoma City, OK 731421578774865
- Michael Confer, M.D.Oklahoma City, OK 731421336346337
- Sakuntala Dutta, M.DOklahoma City, OK 731421588846521
- Robert Gaston, DOOklahoma City, OK 731421619946068
- Tyler Gutschenritter, MDOklahoma City, OK 731421285130716
- Eugen Hug, M.D.Oklahoma City, OK 731421114964855
- Mark McLaughlin, M.D., PH.D.Oklahoma City, OK 731421386164507
Common questions
What is Gary L. Larson, M.D.'s NPI number?
Gary L. Larson, M.D.'s National Provider Identifier (NPI) is 1578599304, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary L. Larson, M.D. located?
The NPPES record lists a practice address at 5911 W Memorial RD, Oklahoma City, OK, 73142. Phone: (405) 773-6530. Providers update this record themselves, so call before visiting.
How can I verify Gary L. Larson, M.D.'s license?
NPPES lists Oklahoma license number 13856, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gary L. Larson, M.D. prescribe under Medicare Part D?
In 2024, Gary L. Larson, M.D. had 200 Medicare Part D claims for 57 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Gary L. Larson, M.D.'s MIPS final score?
The 2023 MIPS final score is 88.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.