Jonathan Day, MD
NPI 1851475024 · Anesthesiology Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Day, MD is a Anesthesiology Physician provider in Jacksonville, FL (NPI 1851475024).
Provider details
- NPI number
- 1851475024
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME109763 (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
19 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
11 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) |
|---|---|---|
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 11 | $191 |
Typical Medicare-allowed amounts for these services range $191–$191 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$131 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
Additional practice locations (1)
- 307 Boatner Rd Ste 114Eglin Afb, FL 32542-1302Phone: (850) 883-8600
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2021-10-11
- Certified
- 2021-10-11
Frequently asked questions
- What is Jonathan Day's NPI number?
- Jonathan Day's National Provider Identifier (NPI) is 1851475024, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Day's specialty?
- Jonathan Day is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Day located?
- Jonathan Day's practice location on file with NPPES is 4500 San Pablo Rd S, Jacksonville, FL 32224-1865.
- What is Jonathan Day's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Day is (904) 953-2000.
- Does Jonathan Day accept Medicare?
- Jonathan Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Day's NPI active?
- Yes — Jonathan Day's NPI (1851475024) is active in the NPPES registry as of the last update on 2021-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.