Grant Barker
NPI 1477013555 · Emergency Medicine Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grant Barker is a Emergency Medicine Physician provider in Jacksonville, FL (NPI 1477013555).
Provider details
- NPI number
- 1477013555
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- ME154935 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
562 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 | 325 | $172 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 148 | $119 |
| Critical Care, First 30-74 Minutes99291 | 64 | $206 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 25 | $69 |
Typical Medicare-allowed amounts for these services range $69–$206 (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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 46 | 45 |
| Ondansetronbrand: Ondansetron Odt | 34 | 34 |
| Cephalexin | 30 | 30 |
| Azithromycin | 28 | 28 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 26 | 26 |
| Methocarbamol | 26 | 25 |
| Ketorolac Tromethamine | 24 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13 across 1 record (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
Registry dates
- Enumerated
- 2019-03-23
- Last updated
- 2022-04-03
- Certified
- 2022-04-03
Frequently asked questions
- What is Grant Barker's NPI number?
- Grant Barker's National Provider Identifier (NPI) is 1477013555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Barker's specialty?
- Grant Barker is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grant Barker located?
- Grant Barker's practice location on file with NPPES is 655 W 8th St, Jacksonville, FL 32209-6511.
- What is Grant Barker's phone number?
- The practice phone number listed in the NPPES registry for Grant Barker is (904) 244-3817.
- Does Grant Barker accept Medicare?
- Grant Barker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grant Barker's NPI active?
- Yes — Grant Barker's NPI (1477013555) is active in the NPPES registry as of the last update on 2022-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.