Daniel Martinez Barrera, DO
NPI 1851886113 · Emergency Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Martinez Barrera, DO is a Emergency Medicine Physician provider in Knoxville, TN (NPI 1851886113).
Provider details
- NPI number
- 1851886113
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OT018454 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
1,790 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 | 779 | $168 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 689 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 215 | $116 |
| Critical Care, First 30-74 Minutes99291 | 72 | $203 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 35 | $68 |
Typical Medicare-allowed amounts for these services range $8–$203 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methocarbamol | 125 | 121 |
| Cefuroxime Axetilbrand: Cefuroxime | 87 | 85 |
| Methylprednisolone | 58 | 58 |
| Ondansetronbrand: Ondansetron Odt | 58 | 58 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 50 | 50 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 33 | 33 |
| Tramadol Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-28
- Last updated
- 2022-03-23
- Certified
- 2022-03-23
Frequently asked questions
- What is Daniel Martinez Barrera's NPI number?
- Daniel Martinez Barrera's National Provider Identifier (NPI) is 1851886113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Martinez Barrera's specialty?
- Daniel Martinez Barrera is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Martinez Barrera located?
- Daniel Martinez Barrera's practice location on file with NPPES is 1924 Alcoa Hwy, Knoxville, TN 37920-1511.
- What is Daniel Martinez Barrera's phone number?
- The practice phone number listed in the NPPES registry for Daniel Martinez Barrera is (865) 305-9350.
- Does Daniel Martinez Barrera accept Medicare?
- Daniel Martinez Barrera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Martinez Barrera's NPI active?
- Yes — Daniel Martinez Barrera's NPI (1851886113) is active in the NPPES registry as of the last update on 2022-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.