Matthew Barker, MD
NPI 1689653651 · Emergency Medicine Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Barker, MD is a Emergency Medicine Physician provider in Jacksonville, FL (NPI 1689653651).
Provider details
- NPI number
- 1689653651
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C131787 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
20 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
228 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 | 122 | $161 |
| Critical Care, First 30-74 Minutes99291 | 85 | $197 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 21 | $113 |
Typical Medicare-allowed amounts for these services range $113–$197 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 36 | 36 |
| Ondansetronbrand: Ondansetron Odt | 27 | 26 |
| Cyclobenzaprine Hcl | 20 | 20 |
| Cephalexin | 18 | 18 |
| Oxycodone Hcl | 17 | 17 |
| Prednisone | 15 | 15 |
| Azithromycin | 11 | 11 |
| Sulfamethoxazole/Trimethoprim |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-10
- Last updated
- 2021-08-10
- Certified
- 2021-08-10
Frequently asked questions
- What is Matthew Barker's NPI number?
- Matthew Barker's National Provider Identifier (NPI) is 1689653651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Barker's specialty?
- Matthew Barker is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Barker located?
- Matthew Barker's practice location on file with NPPES is 2080 Child Street, Jacksonville, FL 32214-0001.
- What is Matthew Barker's phone number?
- The practice phone number listed in the NPPES registry for Matthew Barker is (904) 542-7345.
- Does Matthew Barker accept Medicare?
- Matthew Barker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Barker's NPI active?
- Yes — Matthew Barker's NPI (1689653651) is active in the NPPES registry as of the last update on 2021-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.