Frederick Charles Delafield, M.D.
Rheumatology Physician · Oklahoma City, OK
Frederick Charles Delafield, M.D. is a rheumatology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1982708939, issued on Sep 12, 2006. Check the license (Oklahoma 13196, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Frederick Charles Delafield
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 13196 OK
Self-reported in NPPES; status is on the state search - Practice location
- 4200 W Memorial RD, Oklahoma City, OK 73120
- Phone
- (405) 749-4290
- Enumerated
- Sep 12, 2006
- Record last updated
- May 27, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (405) 749-4295
- Medicare enrollment
- Enrolled (PECOS I20060106000247); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 1980
- Entity
- Type 1 · individual
Also registered at 4200 W Memorial RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carol Banister, R.D.Registered Dietitian1225061468
- Brian Boggs, MDSurgical Oncology Physician1487629556
- Holly Campbell, RD, LDRegistered Dietitian1285768523
- Phillip Corley, DDSGeneral Practice Dentistry1376647099
- Charles Cotton, M.D.Anesthesiology Physician1194864645
- Jay Cunningham, D.O.Anesthesiology Physician1578502050
Verify Frederick Charles Delafield 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 13196Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average rheumatology physician in 2024
423 Medicare Part D claims for 194 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 44 claims were for opioids.
Most prescribed
- Cefdinir48 claims
- Pantoprazole Sodium23 claims
- Prednisone21 claims
- Hydrocodone-Acetaminophen19 claims
- Eliquis17 claims
- Oxycodone Hcl17 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: $269.81
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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 CommunitiesEdmond, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rheumatology Physician providers in Oklahoma
There are 69 rheumatology physician records in Oklahoma.
Other rheumatology physician records in Oklahoma
- Sobia Ahmad, MDNorman, OK1902095201
- Zoha AhmedOklahoma City, OK1467023721
- Bushra Akram, MDOklahoma City, OK1962998781
- Cristina Arriens, MDOklahoma City, OK1861618183
- Robert Arthur, MDOklahoma City, OK1275531519
- Nimrah Bader, MDOklahoma City, OK1447746417
- Lauren Barrett, PA-COklahoma City, OK1679302996
- Erica Benvenutti, MDOklahoma City, OK1699088963
- Jon Blaschke, M.D.Oklahoma City, OK1275580268
- Nancy Brown, D.O.Norman, OK1730137613
Common questions
What is Frederick Charles Delafield, M.D.'s NPI number?
Frederick Charles Delafield, M.D.'s National Provider Identifier (NPI) is 1982708939, issued on Sep 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Charles Delafield, M.D. located?
The NPPES record lists a practice address at 4200 W Memorial RD, Oklahoma City, OK, 73120. Phone: (405) 749-4290. Providers update this record themselves, so call before visiting.
How can I verify Frederick Charles Delafield, M.D.'s license?
NPPES lists Oklahoma license number 13196, 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 Frederick Charles Delafield, M.D. prescribe under Medicare Part D?
In 2024, Frederick Charles Delafield, M.D. had 423 Medicare Part D claims for 194 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.