Aaron K. Armstrong, D.O.
Obstetrics & Gynecology Physician · Oklahoma City, OK
Aaron K. Armstrong, D.O. is an obstetrics & gynecology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1669783361, issued on Jun 28, 2010. Check the license (Oklahoma 5498, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Aaron K. Armstrong
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 5498 OK
Self-reported in NPPES; status is on the state search - Practice location
- 11200 N Portland Ave, Oklahoma City, OK 73120
- Phone
- (405) 936-1000
- Enumerated
- Jun 28, 2010
- Record last updated
- Jul 21, 2022
- Fax
- (405) 936-1001
- Medicare enrollment
- Enrolled (PECOS I20140825001097); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 2010
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 438 in Oklahoma → Look up another NPI →
Also registered at 11200 N Portland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robin Bayless, MDAnesthesiology Physician1134189939
- Nancy Bishop, MDObstetrics & Gynecology Physician1225006299
- Dana Bock, MDAnesthesiology Physician1487614285
- Susan Chambers, M.D.Obstetrics & Gynecology Physician1881613701
- Whitney Driver, MDObstetrics & Gynecology Physician1770743825
- Erica Dufour, RN-IBCLCLactation Consultant (Registered Nurse)1972800092
Verify Aaron K. Armstrong 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 5498Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
70 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol12 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: $717.45
7 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Oklahoma City Gynecology And Obstetrics, LLCOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron K. Armstrong among 438 obstetrics & gynecology physician records in Oklahoma
Aaron K. Armstrong, D.O. is one of 438 obstetrics & gynecology physician records with a practice address in Oklahoma. 76% 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 64% of them.
- NPI issued2010 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2010 · median 2006 among the 267 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Oklahoma
There are 438 obstetrics & gynecology physician records in Oklahoma.
All 438 in Oklahoma → Every provider in Oklahoma City → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- May-Li Barki, MDOklahoma City, OK 731201841259058
- Nancy Bishop, MDOklahoma City, OK 731201225006299
- Dean Carpenter, MDOklahoma City, OK 731201265470009
- James Cox, MDOklahoma City, OK 731201386636330
- Darren Goff, M.D.Oklahoma City, OK 731201700858347
- Devin McAdams, MDOklahoma City, OK 731201184683864
- David Melendez, MDOklahoma City, OK 731201548229222
- Donald Rahhal, M.D.Oklahoma City, OK 731201114996899
Common questions
What is Aaron K. Armstrong, D.O.'s NPI number?
Aaron K. Armstrong, D.O.'s National Provider Identifier (NPI) is 1669783361, issued on Jun 28, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Aaron K. Armstrong, D.O. located?
The NPPES record lists a practice address at 11200 N Portland Ave, Oklahoma City, OK, 73120. Phone: (405) 936-1000. Providers update this record themselves, so call before visiting.
How can I verify Aaron K. Armstrong, D.O.'s license?
NPPES lists Oklahoma license number 5498, 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 Aaron K. Armstrong, D.O. prescribe under Medicare Part D?
In 2024, Aaron K. Armstrong, D.O. had 70 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.