Brett Hadley, D.O.
NPI 1932499829 · Emergency Medicine Physician · Aliso Viejo, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brett Hadley, D.O. is a Emergency Medicine Physician provider in Aliso Viejo, CA (NPI 1932499829).
Provider details
- NPI number
- 1932499829
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OT013416 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
578 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 245 | $179 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 146 | $125 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 108 | $8 |
| Critical Care, First 30-74 Minutes99291 | 44 | $223 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 20 | $73 |
| X-Ray of Chest, 1 View71045 | 15 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 42 | 42 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 29 | 29 |
| Ondansetronbrand: Ondansetron Odt | 26 | 25 |
| Methylprednisolone | 21 | 21 |
| Cephalexin | 17 | 16 |
| Dicyclomine Hcl | 13 | 13 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-12
- Last updated
- 2014-07-30
Frequently asked questions
- What is Brett Hadley's NPI number?
- Brett Hadley's National Provider Identifier (NPI) is 1932499829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brett Hadley's specialty?
- Brett Hadley is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brett Hadley located?
- Brett Hadley's practice location on file with NPPES is 35 Argonaut, Aliso Viejo, CA 92656-4151.
- What is Brett Hadley's phone number?
- The practice phone number listed in the NPPES registry for Brett Hadley is (801) 367-9019.
- Does Brett Hadley accept Medicare?
- Brett Hadley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brett Hadley's NPI active?
- Yes — Brett Hadley's NPI (1932499829) is active in the NPPES registry as of the last update on 2014-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.