Dr. John Louis Mazzella, MD
- Medicare services, 2024
- 3,564
- Medicare patients, 2024
- 2,704
- Part D claims, 2019
- 15
- MIPS score, 2024
- 87
- Hospital affiliations
- 5
- Practice address
- 1 Shircliff Way, Jacksonville, FL 32204
- Practice phone
- Call (904) 308-7300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mazzella's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Louis Mazzella is a diagnostic radiologist in Jacksonville, Florida
Dr. Mazzella practices at Ascension St. Vincent's Riverside in Jacksonville, Florida, part of Ascension Health Alliance.
Dr. Mazzella's NPI, 1588610026, was assigned on May 26, 2006. Dr. Mazzella graduated from West Virginia University School Of Medicine in 1997. Dr. Mazzella holds Florida license ME89003.
- NPI
- 1588610026NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153382692
- NPI enumeration date
- May 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (904) 308-7300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Louis Mazzella practices at Ascension St. Vincent's Riverside in Jacksonville, Florida
Dr. Mazzella's primary practice is Ascension St. Vincent's Riverside, at 1 Shircliff Way, Jacksonville, FL 32204 in Duval County. The practice phone is (904) 308-7300.
- Ascension St. Vincent's Riverside1 Shircliff Way, Jacksonville, FL 32204 · Duval CountyPhone(904) 308-7300
Source: Dmand AI Affiliation Data
Dr. John Louis Mazzella is affiliated with 5 sites of care and 1 medical group
Dr. Mazzella's primary practice is Ascension St. Vincent's Riverside in Jacksonville, Florida, part of Ascension Health Alliance. Dr. Mazzella is also affiliated with Baptist Medical Center Jacksonville. The medical group on file is MCB Radiology. Dmand AI also links Dr. Mazzella to 3 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Louis Mazzella's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mazzella practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St. Vincent's Riverside | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Louis Mazzella is one of 2,422 diagnostic radiologists in Florida
Diagnostic radiology is Dr. Mazzella's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Mazzella is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Mazzella's licenses on file in 9 states: Florida, Maine, Colorado, Kentucky, Washington, Alabama, Tennessee, South Carolina and North Carolina.
Specialties and state licenses
- Diagnostic radiology, FloridaPrimary
- Maine license
- Colorado license
- Kentucky license
- Washington license
- Alabama license
- Tennessee license
- South Carolina license
- North Carolina license
Diagnostic radiologists near Dr. Mazzella
Counts of diagnostic radiologists 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. John Louis Mazzella billed Medicare for 3,564 services in 2024
CMS data shows 3,564 Medicare services from Dr. Mazzella across 57 procedure codes in 2024, for 2,704 Medicare patients. Medicare paid $74,641 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mazzella's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 3,7992024: 3,35312%
- Tests and treatments
- 2023: 2102024: 16621%
- Other services
- 2023: 482024: 456%
Dr. Mazzella compared with the Florida median for diagnostic radiologists, 2024
- Dr. Mazzella
- Florida median
- Medicare services
- 3,564vs 2,94821% above
- Medicare patients
- 2,704vs 1,60469% above
- Part D claims
- 15vs 166% below
Medians across 2,249 diagnostic radiologists in Florida with Dmand AI profiles that report each measure.
Dr. Mazzella'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. Mazzella?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mazzella and other diagnostic radiologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Louis Mazzella treated 2,704 Medicare patients in 2024, average age 75
CMS counts 2,704 Medicare patients who saw Dr. Mazzella in 2024. The largest group is 65 to 74, with 1,082 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.81, 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. Mazzella's median patient age at 73, with 64% women.
Dr. Mazzella's Medicare patients by age, 2024
Dr. Mazzella's Medicare patients by sex, 2024
- Women1,64261%
- Men1,06239%
Chronic conditions among Dr. Mazzella's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis67%
- Ischemic heart disease47%
- Diabetes41%
- Chronic kidney disease35%
- Anxiety34%
- Mood disorders34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mazzella's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Louis Mazzella wrote 15 Medicare Part D claims in 2019
In 2019, Dr. Mazzella wrote 15 Medicare Part D claims. They cover 1 drug, with $885 in total drug cost.
Dr. Mazzella's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. John Louis Mazzella scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Mazzella for performance year 2024, reported as part of a group. Dr. Mazzella accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mazzella's MIPS scores, performance year 2024
- 87of 100Final score
- 83.7of 100Quality
- 40of 100Improvement Activities
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. John Louis Mazzella received $203 in industry payments from 2016 to 2021
CMS Open Payments shows 6 general payments to Dr. Mazzella from 6 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $110.
General payments to Dr. Mazzella by program year, 2016 to 2021
Companies that paid Dr. Mazzella the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Louis Mazzella graduated from West Virginia University School Of Medicine
Dr. Mazzella graduated from West Virginia University School Of Medicine in 1997.
- Medical school
- Board certified in diagnostic radiology
- Board certified in neuroradiology
Source: Dmand AI Professional Profile Data
Dr. John Louis Mazzella accepts plans from 7 insurance carriers
Dr. Mazzella is in network with 7 carriers, including Excellus BlueCross BlueShield, United Healthcare and Blue Cross and Blue Shield of Kansas City. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- GA State Medicaid
- HCSC
Plan types Dr. Mazzella accepts, by number of carriers
- HMO3
- Medicare3
- PPO3
- EPO2
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Louis Mazzella'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. John Louis Mazzella
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. John Louis Mazzella's NPI number?
Dr. John Louis Mazzella's NPI number is 1588610026. It was assigned on May 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Louis Mazzella?
Dr. John Louis Mazzella is a diagnostic radiologist in Jacksonville, Florida. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. John Louis Mazzella practice?
Dr. Mazzella practices at 1 Shircliff Way, Jacksonville, FL 32204. Dr. Mazzella's primary practice is Ascension St. Vincent's Riverside in Jacksonville, Florida, part of Ascension Health Alliance. Dmand AI also links Dr. Mazzella to 3 hospitals.
What is Dr. John Louis Mazzella's office phone number?
The practice phone on file for Dr. Mazzella is (904) 308-7300.
What is Dr. John Louis Mazzella's medical license number?
Dr. Mazzella holds Florida license ME89003, one of the licenses on file in 9 states.
Which states has Dr. John Louis Mazzella been licensed in?
Dmand AI has state licenses on file for Dr. Mazzella in Florida (2003 to 2026), Maine (since 2010), Colorado (2007 to 2009), Kentucky (2007 to 2009), Washington (2007 to 2009), Alabama (2003 to 2008), Tennessee (2005 to 2008), South Carolina (2000 to 2004) and North Carolina (2001 to 2002).
Which hospitals is Dr. John Louis Mazzella affiliated with?
Dr. Mazzella practices at Ascension St. Vincent's Riverside in Jacksonville, Florida. Dr. Mazzella is also affiliated with Baptist Medical Center Jacksonville. Dmand AI links Dr. Mazzella to 3 more hospitals.
What medical group is Dr. John Louis Mazzella part of?
Dr. Mazzella is linked to MCB Radiology.
Does Dr. John Louis Mazzella accept Medicare?
Yes. CMS data shows Dr. Mazzella billed Medicare for 3,564 services in 2024, and Dr. Mazzella accepts Medicare assignment.
What is Dr. John Louis Mazzella's MIPS score?
Dr. Mazzella's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. John Louis Mazzella see?
CMS counts 2,704 Medicare patients who saw Dr. Mazzella in 2024, with an average age of 75.
Is Dr. John Louis Mazzella board certified?
Yes. Dr. Mazzella is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. John Louis Mazzella bill to Medicare?
In 2024, Dr. Mazzella's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (71046) and diagnostic imaging (70450).
Where did Dr. John Louis Mazzella go to medical school?
Dr. Mazzella graduated from West Virginia University School Of Medicine in 1997.
What drugs does Dr. John Louis Mazzella prescribe most?
In 2019 Medicare Part D data, Dr. Mazzella's most prescribed drugs by claims were Clotrimazole-Betamethasone.
Has Dr. John Louis Mazzella received payments from drug or device companies?
CMS Open Payments shows $203 in general payments to Dr. Mazzella from 6 companies from 2016 to 2021. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. John Louis Mazzella been practicing?
Dr. Mazzella graduated from medical school in 1997, 29 years ago.
What insurance does Dr. John Louis Mazzella accept?
Dr. Mazzella is in network with 7 carriers, including Excellus BlueCross BlueShield, United Healthcare and Blue Cross and Blue Shield of Kansas City. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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