Robert J. Gunderson, D.O.
Orthopaedic Surgery Physician · Chickasha, OK
Robert J. Gunderson, D.O. is an orthopaedic surgery physician with a practice address in Chickasha, Oklahoma, and NPI 1598748907, issued on Nov 21, 2005. Check the license (Oklahoma 3030, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Robert J. Gunderson
- Credential
- D.O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 3030 OK
Self-reported in NPPES; status is on the state search - Practice location
- 2116 W Iowa Ave, Chickasha, OK 73018
- Phone
- (405) 224-2100
- Enumerated
- Nov 21, 2005
- Record last updated
- Feb 13, 2026
- Fax
- (405) 779-2801
- Medicaid ID
- 100257690B OK
- Medicare enrollment
- Enrolled (PECOS I20060117000761); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1991
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 302 in Oklahoma → Look up another NPI →
Also registered at 2116 W Iowa Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacob Boyd, PA-CPhysician Assistant1003656448
- E. Foster, ARNPWomen's Health Nurse Practitioner1609084300
- Craig Verdin, DPMFoot & Ankle Surgery Podiatrist1477016723
- Karen Verser, APRNFamily Nurse Practitioner1477924769
Verify Robert J. Gunderson 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 3030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average orthopaedic surgery physician in 2024
748 Medicare Part D claims for 182 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 378 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen257 claims
- Oxycodone-Acetaminophen86 claims
- Promethazine Hcl58 claims
- Cephalexin56 claims
- Ibuprofen55 claims
- Meloxicam26 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: $135.02
5 payments; by number, the most common kind was food and beverage; the largest payer was Carbofix Orthopedics Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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.
One hospital affiliation
- Grady Memorial HospitalChickasha, OK · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Robert J. Gunderson among 302 orthopaedic surgery physician records in Oklahoma
Robert J. Gunderson, D.O. is one of 302 orthopaedic surgery physician records with a practice address in Oklahoma. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1991 · median 2002 among the 178 with a school on file
- Record last updated2026 · 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 207X00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 orthopaedic surgery physician records list a practice address in Chickasha
They are 4 of the 354 NPPES records with a practice address in Chickasha, and 302 orthopaedic surgery physician records in Oklahoma.
All 302 in Oklahoma → Every provider in Chickasha → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Danny Giles, M.D.Chickasha, OK 730181932261450
- Lee Vanderlugt, DOChickasha, OK 730181750364022
- James Winslow, M.D.Chickasha, OK 730181992780498
- Rick Beller, MDEdmond, OK 730131427044015
- Jonathan Capelle, MDEdmond, OK 730131982863254
- Thaddeus Carnine, MDEdmond, OK 730131821190174
- William Hale, M.D.Edmond, OK 730131215917778
- William Herndon, MDEdmond, OK 730131972575306
Common questions
What is Robert J. Gunderson, D.O.'s NPI number?
Robert J. Gunderson, D.O.'s National Provider Identifier (NPI) is 1598748907, issued on Nov 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Gunderson, D.O. located?
The NPPES record lists a practice address at 2116 W Iowa Ave, Chickasha, OK, 73018. Phone: (405) 224-2100. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Gunderson, D.O.'s license?
NPPES lists Oklahoma license number 3030, 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 Robert J. Gunderson, D.O. prescribe under Medicare Part D?
In 2024, Robert J. Gunderson, D.O. had 748 Medicare Part D claims for 182 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.