Anna Catherine Royce, MD
Internal Medicine Physician · Oklahoma City, OK
Anna Catherine Royce, MD is an internal medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1154883825, issued on Apr 2, 2019. Check the license (Oklahoma 34734, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Anna Catherine Royce
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 34734 OK
Self-reported in NPPES; status is on the state search - Practice location
- 4300 W Memorial RD, Oklahoma City, OK 73120
- Phone
- (405) 755-1515
- Enumerated
- Apr 2, 2019
- Record last updated
- Jul 10, 2022
- Fax
- (605) 273-3637
- Medicare enrollment
- Enrolled (PECOS I20220901000121); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 4300 W Memorial RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Todd Arms, PAPhysician Assistant1235309386
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- Steven Baker, D.O.Hospitalist Physician1831174507
Verify Anna Catherine Royce 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 34734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
188 Medicare Part D claims for 104 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Ciprofloxacin Hcl12 claims
- Prednisone12 claims
- Hydrocodone-Acetaminophen11 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: $145.49
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 Clinic Oklahoma CommunitiesOklahoma City, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Catherine Royce among 1,115 internal medicine physician records in Oklahoma
Anna Catherine Royce, MD is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 75% of them.
- NPI issued2019 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2007 among the 653 with a school on file
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
418 internal medicine physician records list a practice address in Oklahoma City
They are 418 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Oklahoma City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dustan Buckley, MDOklahoma City, OK 731201730171794
- Michael Crawford, MDOklahoma City, OK 731201780689307
- Leanne Dias Da Silva, MDOklahoma City, OK 731201689879355
- S A Dean Drooby, MDOklahoma City, OK 731201598747354
- Patrice Go, M.D.Oklahoma City, OK 731201164508750
- Joseph Lee, D.O.Oklahoma City, OK 731201255358891
- Joseph Metz, MDOklahoma City, OK 731201144324443
- Raha Nael, MDOklahoma City, OK 731201720128630
Common questions
What is Anna Catherine Royce, MD's NPI number?
Anna Catherine Royce, MD's National Provider Identifier (NPI) is 1154883825, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Anna Catherine Royce, MD located?
The NPPES record lists a practice address at 4300 W Memorial RD, Oklahoma City, OK, 73120. Phone: (405) 755-1515. Providers update this record themselves, so call before visiting.
How can I verify Anna Catherine Royce, MD's license?
NPPES lists Oklahoma license number 34734, 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 Anna Catherine Royce, MD prescribe under Medicare Part D?
In 2024, Anna Catherine Royce, MD had 188 Medicare Part D claims for 104 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.