Randell B. Chapman, M.D.
Emergency Medicine Physician · Shawnee, OK
Randell B. Chapman, M.D. is an emergency medicine physician with a practice address in Shawnee, Oklahoma, and NPI 1922073055, issued on Feb 22, 2006. Check the license (Oklahoma 14857, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Randell B. Chapman
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 14857 OK
04-23723 KS
Self-reported in NPPES; status is on the state search - Practice location
- 1102 W Macarthur St, Shawnee, OK 74804
- Phone
- (405) 878-8102
- Enumerated
- Feb 22, 2006
- Record last updated
- May 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 100101340A OK
- Medicare enrollment
- Enrolled (PECOS I20040908000457); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 748 in Oklahoma → Look up another NPI →
Also registered at 1102 W Macarthur St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raoul Acha, PAPhysician Assistant1902513682
- Gaynell Anderson, M.D.Family Medicine Physician1114925781
- Andrea Andrews, MDFamily Medicine Physician1629063409
- Kaitlyn BacaDoula1407729130
- Jamil Bitar, M.D.Emergency Medicine Physician1386816528
- Wade Bittle, P.A.-CPhysician Assistant1154508976
Verify Randell B. Chapman 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 14857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average emergency medicine physician in 2024
383 Medicare Part D claims for 266 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 83 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen73 claims
- Cefdinir70 claims
- Doxycycline Hyclate35 claims
- Prednisone16 claims
- Dexamethasone15 claims
- Albuterol Sulfate Hfa14 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.
Bills Medicare through 2 group practices
- Ehp OF Ponca City LLCPonca City, OK
- Hospitalist Medicine Physicians OF Oklahoma Tcs LLCLawton, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Randell B. Chapman among 748 emergency medicine physician records in Oklahoma
Randell B. Chapman, M.D. is one of 748 emergency medicine physician records with a practice address in Oklahoma. 87% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 70% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1983 · median 2016 among the 438 with a school on file
- Record last updated2013 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Oklahoma
There are 748 emergency medicine physician records in Oklahoma.
All 748 in Oklahoma → Every provider in Shawnee → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jamil Bitar, M.D.Shawnee, OK 748041386816528
- Kristopher Hart, D.O.Shawnee, OK 748041992800585
- John Stepanek, D.O.Shawnee, OK 748041568458941
- Stephanie Toth, MDShawnee, OK 748041982746376
- Anastasia Fisher, DOShawnee, OK 748011780761833
- Joseph McKenna, MDShawnee, OK 748011346232394
- Melissa Colbert, D.O.Ada, OK 748201093000184
- Brian Gaddis, D.O.Ada, OK 748201366750069
Common questions
What is Randell B. Chapman, M.D.'s NPI number?
Randell B. Chapman, M.D.'s National Provider Identifier (NPI) is 1922073055, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Randell B. Chapman, M.D. located?
The NPPES record lists a practice address at 1102 W Macarthur St, Shawnee, OK, 74804. Phone: (405) 878-8102. Providers update this record themselves, so call before visiting.
How can I verify Randell B. Chapman, M.D.'s license?
NPPES lists Oklahoma license number 14857, 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 Randell B. Chapman, M.D. prescribe under Medicare Part D?
In 2024, Randell B. Chapman, M.D. had 383 Medicare Part D claims for 266 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.