Brian Mcmaster, DO
NPI 1427403591 · Emergency Medicine Physician · Orlando, FL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Mcmaster, DO is a Emergency Medicine Physician provider in Orlando, FL (NPI 1427403591).
Provider details
- NPI number
- 1427403591
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS15539 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
661 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 308 | $175 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 146 | $121 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 82 | $8 |
| Critical Care, First 30-74 Minutes99291 | 80 | $210 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 32 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 19 | 18 |
| Cephalexin | 16 | 15 |
| Prednisone | 15 | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$142 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 855 Outer RdOrlando, FL 32814-6652Phone: (407) 579-3927
Registry dates
- Enumerated
- 2016-04-26
- Last updated
- 2024-07-15
- Certified
- 2024-07-15
Frequently asked questions
- What is Brian Mcmaster's NPI number?
- Brian Mcmaster's National Provider Identifier (NPI) is 1427403591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Mcmaster's specialty?
- Brian Mcmaster is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Mcmaster located?
- Brian Mcmaster's practice location on file with NPPES is 855 Outer Rd, Orlando, FL 32814-6652.
- What is Brian Mcmaster's phone number?
- The practice phone number listed in the NPPES registry for Brian Mcmaster is (407) 579-3927.
- Does Brian Mcmaster accept Medicare?
- Brian Mcmaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Mcmaster's NPI active?
- Yes — Brian Mcmaster's NPI (1427403591) is active in the NPPES registry as of the last update on 2024-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.