Dr. Jonathan Alan Day, MD
- Medicare services, 2024
- 11
- Medicare patients, 2024
- 127
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Industry payments
- $406
- Practice address
- 4500 San Pablo Rd, Jacksonville, FL 32224
- Practice phone
- Call (904) 953-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Day's professional email, personal email and mobile number
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Dr. Jonathan Alan Day is an anesthesiologist in Jacksonville, Florida
Dr. Day practices at Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.
Dr. Day's NPI, 1851475024, was assigned on October 25, 2006. Dr. Day graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 2005. Dr. Day holds Florida license ME109763.
- NPI
- 1851475024NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527237916
- NPI enumeration date
- October 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (904) 953-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan Alan Day practices at Mayo Clinic Hospital in Jacksonville, Florida
Dr. Day's primary practice is Mayo Clinic Hospital, at 4500 San Pablo Rd, Jacksonville, FL 32224 in Duval County. The practice phone is (904) 953-2000.
- Mayo Clinic Hospital4500 San Pablo Rd, Jacksonville, FL 32224 · Duval CountyPhone(904) 953-2000
Source: Dmand AI Affiliation Data
Dr. Jonathan Alan Day is affiliated with 1 site of care and 2 medical groups
Dr. Day's primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic. The medical group on file is Mayo Clinic Jacksonville. Dmand AI also links Dr. Day to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Alan Day's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Day practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan Alan Day is one of 3,063 anesthesiologists in Florida
Anesthesiology is Dr. Day's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Day is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Day's licenses on file in 4 states: Florida, Tennessee, Virginia and Nevada.
Specialties and state licenses
- Anesthesiology, FloridaPrimary
- Tennessee license
- Virginia license
- Nevada license
Anesthesiologists near Dr. Day
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jonathan Alan Day billed Medicare for 11 services in 2024
CMS data shows 11 Medicare services from Dr. Day across 1 procedure code in 2024, for 127 Medicare patients. Medicare paid $1,675 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Day's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Anesthesia
- 2022: 02024: 11
- Imaging
- 2022: 172024: 0100%
Dr. Day compared with the Florida median for anesthesiologists, 2024
- Dr. Day
- Florida median
- Medicare services
- 11vs 7485% below
- Medicare patients
- 127vs 1206% above
Medians across 2,878 anesthesiologists in Florida with Dmand AI profiles that report each measure.
Dr. Day's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Day?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Day and other anesthesiologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan Alan Day treated 127 Medicare patients in 2024, average age 74
CMS counts 127 Medicare patients who saw Dr. Day in 2024. The largest group is 65 to 74, with 71 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Day's median patient age at 60, with 59% women.
Dr. Day's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Day's Medicare patients by sex, 2024
- Women5140%
- Men7660%
Chronic conditions among Dr. Day's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease45%
- Chronic kidney disease38%
- Cancer31%
- Diabetes30%
- Atrial fibrillation28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Day's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan Alan Day scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Day for performance year 2024, reported as part of a group. Dr. Day accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Day's MIPS scores, performance year 2024
- 84of 100Final score
- 74.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Jonathan Alan Day received $406 in industry payments from 2016 to 2024
CMS Open Payments shows 9 general payments to Dr. Day from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $162.
General payments to Dr. Day by program year, 2016 to 2024
Companies that paid Dr. Day the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jonathan Alan Day graduated from Uniformed Services University, F. Edward Hebert School of Medicine
Dr. Day graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 2005.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Jonathan Alan Day accepts plans from 3 insurance carriers
Dr. Day is in network with 3 carriers, including Excellus BlueCross BlueShield, United Healthcare and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- United Healthcare
- CMS Medicare
Plan types Dr. Day accepts, by number of carriers
- Medicare3
- HMO2
- POS2
- PPO2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jonathan Alan Day's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jonathan Alan Day
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jonathan Alan Day's NPI number?
Dr. Jonathan Alan Day's NPI number is 1851475024. It was assigned on October 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Alan Day?
Dr. Jonathan Alan Day is an anesthesiologist in Jacksonville, Florida. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Jonathan Alan Day practice?
Dr. Day practices at 4500 San Pablo Rd, Jacksonville, FL 32224. Dr. Day's primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic. Dmand AI also links Dr. Day to 1 medical group.
What is Dr. Jonathan Alan Day's office phone number?
The practice phone on file for Dr. Day is (904) 953-2000.
What is Dr. Jonathan Alan Day's medical license number?
Dr. Day holds Florida license ME109763, one of the licenses on file in 4 states.
Which states has Dr. Jonathan Alan Day been licensed in?
Dmand AI has state licenses on file for Dr. Day in Florida (2011 to 2027), Tennessee (2020 to 2021), Virginia (2006 to 2016) and Nevada (2012 to 2015).
Which hospitals is Dr. Jonathan Alan Day affiliated with?
Dr. Day practices at Mayo Clinic Hospital in Jacksonville, Florida.
What medical group is Dr. Jonathan Alan Day part of?
Dr. Day is linked to Mayo Clinic Jacksonville. Dmand AI links Dr. Day to 1 more medical group.
Does Dr. Jonathan Alan Day accept Medicare?
Yes. CMS data shows Dr. Day billed Medicare for 11 services in 2024, and Dr. Day accepts Medicare assignment.
What is Dr. Jonathan Alan Day's MIPS score?
Dr. Day's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Jonathan Alan Day see?
CMS counts 127 Medicare patients who saw Dr. Day in 2024, with an average age of 74.
Is Dr. Jonathan Alan Day board certified?
Yes. Dr. Day is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Jonathan Alan Day bill to Medicare?
In 2024, Dr. Day's most billed Medicare services were anesthesia (01402).
Where did Dr. Jonathan Alan Day go to medical school?
Dr. Day graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 2005.
Has Dr. Jonathan Alan Day received payments from drug or device companies?
CMS Open Payments shows $406 in general payments to Dr. Day from 5 companies from 2016 to 2024. The largest total came from Stryker Corporation.
How long has Dr. Jonathan Alan Day been practicing?
Dr. Day graduated from medical school in 2005, 21 years ago.
What insurance does Dr. Jonathan Alan Day accept?
Dr. Day is in network with 3 carriers, including Excellus BlueCross BlueShield, United Healthcare and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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