Physician Profile
Unclaimed ProfileAbout IRWIN
Derek A. Irwin, MD is a healthcare provider in Oklahoma City, OK specialising in pathology. Derek trained at University of Oklahoma College of Medicine, graduating in 1995. Derek is also listed as specialising in anatomic & clinical pathology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Irwin?
Dr. Irwin is a pathology in Oklahoma City, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
What is Dr. Irwin's address?
Dr. Irwin is listed at 225 NE 97TH ST, Oklahoma City, OK 73114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Irwin?
The number on file is (405) 842-2061. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Irwin's NPI number?
Dr. Irwin's National Provider Identifier is 1184603300. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Irwin train?
Dr. Irwin attended University of Oklahoma College of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Irwin been practising?
Dr. Irwin has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Irwin perform?
According to Medicare billing data, Dr. Irwin the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Irwin confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Irwin. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (405) 842-2061
- Email not available
Practice Locations
225 NE 97TH ST
Oklahoma City, OK 73114
Procedures Most Often Billed to Medicare
932 services · 490 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
570 |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
118 |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
84 |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
56 |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
37 |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
36 |
| Pathology examination of tissue using a microscope, high complexity | Lab test | 88309 |
20 |
| Blood smear interpretation by physician with written report | Lab test | 85060 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other pathology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pathology specialists in Oklahoma City 8
Same specialty, same city.
More connections — 14 related providers in 2 groups
Trained at University of Oklahoma College of Medicine 6
Other providers in the same specialty who trained at the same institution.
Class of 1995 at University of Oklahoma College of Medicine 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.