Derek A. Irwin, MD
Anatomic Pathology & Clinical Pathology Physician · Oklahoma City, OK
Derek A. Irwin, MD is an anatomic pathology & clinical pathology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1184603300, issued on Jan 16, 2006. Check the license (Oklahoma 19794, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Derek A. Irwin
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 19794 OK
Self-reported in NPPES; status is on the state search - Practice location
- 225 NE 97TH St, Oklahoma City, OK 73114
- Phone
- (405) 842-2061
- Enumerated
- Jan 16, 2006
- Record last updated
- Jul 1, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (405) 842-3146
- Medicaid IDs
- 154966001 AR
100824700A OK - Medicare enrollment
- Enrolled (PECOS I20031205000183); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 150 in Oklahoma → Look up another NPI →
Also registered at 225 NE 97TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Bivens, P.A.-CMedical Physician Assistant1861565533
- Peter Brumbaugh, MDAnatomic Pathology & Clinical Pathology Physician1245219450
- Randal Juengel, MDAnatomic Pathology & Clinical Pathology Physician1700865920
- Maria Ochoa, MDAnatomic Pathology & Clinical Pathology Physician1821077041
- Madhusudan Rao, MDAnatomic Pathology & Clinical Pathology Physician1780663849
- John Rogers, MDAnatomic Pathology & Clinical Pathology Physician1295714426
Verify Derek A. Irwin 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 19794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Diagnostic Pathology Services, Inc.Oklahoma City, OK
- Pathology Consultation Services IncNorman, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek A. Irwin among 150 anatomic pathology & clinical pathology physician records in Oklahoma
Derek A. Irwin, MD is one of 150 anatomic pathology & clinical pathology physician records with a practice address in Oklahoma. 54% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 49% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1995 · median 2000 among the 71 with a school on file
- Record last updated2015 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Oklahoma
There are 150 anatomic pathology & clinical pathology physician records in Oklahoma.
All 150 in Oklahoma → Every provider in Oklahoma City → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Peter Brumbaugh, MDOklahoma City, OK 731141245219450
- Evan Fowle, D.O.Oklahoma City, OK 731141649538505
- Kari Hooper, MDOklahoma City, OK 731141760681381
- Randal Juengel, MDOklahoma City, OK 731141700865920
- Jolanta Kowalewska, M.D.Oklahoma City, OK 731141881779692
- Maria Ochoa, MDOklahoma City, OK 731141821077041
- Madhusudan Rao, MDOklahoma City, OK 731141780663849
- John Rogers, MDOklahoma City, OK 731141295714426
Common questions
What is Derek A. Irwin, MD's NPI number?
Derek A. Irwin, MD's National Provider Identifier (NPI) is 1184603300, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Derek A. Irwin, MD located?
The NPPES record lists a practice address at 225 NE 97TH St, Oklahoma City, OK, 73114. Phone: (405) 842-2061. Providers update this record themselves, so call before visiting.
How can I verify Derek A. Irwin, MD's license?
NPPES lists Oklahoma license number 19794, 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.
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.