Physician Profile
Unclaimed ProfileAbout BRENNAN
Based in Oklahoma City, OK, David Brennan, DO is listed in the NPI registry under emergency medicine. David is also listed as specializing in student in an organized health care education program. According to Medicare claims data, David cared for 262 Medicare patients across 270 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (405) 636-7000
- Email not available
Practice Locations
4401 S WESTERN AVE
Oklahoma City, OK 73109
Procedures Most Often Billed to Medicare
270 services · 262 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
160 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
75 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
35 |
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 emergency physicians at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 6 related providers in 1 group
Other emergency physicians in Oklahoma City 6
Same specialty, same city.
Common questions
What is Dr. Brennan's specialty?
Dr. Brennan is an emergency physician in Oklahoma City, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Emergency Medicine”.
NPI registry
Where can I find Dr. Brennan?
Dr. Brennan is listed at 4401 S WESTERN AVE, Oklahoma City, OK 73109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Brennan?
The number on file is (405) 636-7000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Brennan's NPI number?
Dr. Brennan's National Provider Identifier is 1013414952. 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
How long has Dr. Brennan been practicing?
Dr. Brennan has 8+ years experience. Registered with an NPI since 2018. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Brennan known for?
According to Medicare billing data, Dr. Brennan 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. Brennan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Brennan. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.