Education, MedicalNeurologyWebcasts as Topic
Dr. John Charles Williamson, MD
NPI1073566709
- Medicare services, 2021
- 791
- Part D claims, 2023
- 13
- Publications
- 30
- Industry payments
- $4,941
- Insurance carriers
- 13
- Practice address
- 800 Prudential Dr, Jacksonville, FL 32207
- Practice phone
- Call (512) 443-5988
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Williamson's professional email, personal email and mobile number
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Dr. John Charles Williamson is a urologist in Jacksonville, Florida
Dr. Williamson practices in Jacksonville, Florida.
Dr. Williamson's NPI, 1073566709, was assigned on May 17, 2006. Dr. Williamson graduated from Joe R. & Teresa Lozano Long School of Medicine in 1976. Dr. Williamson's Texas license number on file is E6690.
NPI and contact details
- NPI
- 1073566709NPI Registry (opens in a new tab)
- NPI enumeration date
- May 17, 2006
- NPI status
- Active
- Practice phone
- (512) 443-5988
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John Charles Williamson's practice address is in Jacksonville, Florida
Dr. Williamson's practice address in the NPI Registry is 800 Prudential Dr, Jacksonville, FL 32207, in Duval County. The practice phone is (512) 443-5988.
- NPI Registry address800 Prudential Dr, Jacksonville, FL 32207 · Duval CountyPhone(512) 443-5988
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John Charles Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williamson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Williamson's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Charles Williamson is one of 920 urologists in Florida
Urology is Dr. Williamson's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Williamson is board certified in urology by the American Board of Urology. Dr. Williamson has a license on file in Texas.
Specialties and state licenses
- Urology, TexasPrimary
Urologists near Dr. Williamson
Counts of urologists 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 Charles Williamson billed Medicare for 791 services in 2021
CMS data shows 791 Medicare services from Dr. Williamson across 8 procedure codes in 2021. Medicare paid $30,458 for them. Every service was in an office.
Medicare services, 2021791
Paid by Medicare$30,458
Procedure codes8
Dr. Williamson's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1,7082021: 60365%
- Surgery
- 2020: 6032021: 18869%
- Drugs given in the office
- 2020: 1052021: 0100%
- Imaging
- 2020: 112021: 0100%
- Lab and pathology
- 2020: 5642021: 0100%
- Tests and treatments
- 2020: 162021: 0100%
- Other services
- 2020: 2362021: 0100%
Dr. Williamson compared with the Florida median for urologists, 2021
- Dr. Williamson
- Florida median
- Medicare services
- 791vs 1,35241% below
- Part D claims
- 13vs 93699% below
Medians across 860 urologists in Florida with Dmand AI profiles that report each measure.
Dr. Williamson's most billed Medicare procedure codes, 2021
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. Williamson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williamson and other urologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Charles Williamson's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Williamson's median patient age at 74, with 14% women.
Dr. Williamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women14%
- Men82%
Source: Dmand AI Patient Panel Data
Dr. John Charles Williamson wrote 13 Medicare Part D claims in 2023
In 2023, Dr. Williamson wrote 13 Medicare Part D claims. They cover 1 drug, with $6,197 in total drug cost. In 2022, CMS named 16 claims across 1 drug.
Part D claims, 202313
Drugs named by CMS1
Total drug cost$6,197
Dr. Williamson's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 162023: 1319%
Drugs named by CMS: 1 in 2023, 1 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John Charles Williamson has 30 publications on record
Dmand AI links 30 papers to Dr. Williamson, published from 2001 to 2024. 2019 was the busiest year, with 3. The most frequent topics are Anti-Bacterial Agents, Anti-Infective Agents and Clostridioides difficile. Dr. Williamson has published most often in Ann Pharmacother. Dr. Williamson's most frequent co-authors are Vera Parkhurst Luther, MD, Christopher Alan Ohl, MD and Jason Albert Chou, MD.
Papers30
Years published2001 to 2024
Dr. Williamson's papers by year, 2001 to 2024
Topics Dr. Williamson writes about most
- Anti-Bacterial Agents
- Anti-Infective Agents
- Clostridioides difficile
- Drug Therapy, Combination
- Enterocolitis, Pseudomembranous
- HIV Infections
- North Carolina
- Vancomycin
Dr. Williamson's most frequent co-authors
- Vera Parkhurst Luther, MD3 shared papers
- Christopher Alan Ohl, MD3 shared papers
- Jason Albert Chou, MD1 shared paper
Recent publications by Dr. Williamson
Cochrane Database Syst Rev
Neurodegener Dis Manag
Cognitive DysfunctionDementiaMeta-Analysis as Topic
Illicit DrugsNitrous OxideSpinal Cord Diseases
Dement Geriatr Cogn Disord
Cognition DisordersCognitive DysfunctionDementia
See who Dr. Williamson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williamson works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Charles Williamson received $4,941 in industry payments from 2016 to 2024
CMS Open Payments shows 291 general payments to Dr. Williamson from 33 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 96% of the total. Astellas Pharma US Inc paid the most, $671.
General payments to Dr. Williamson by program year, 2016 to 2024
General payments to Dr. Williamson by kind, 2016 to 2024
$4.9Kin total
- Food and beverage$4,73496%
- Education$2084%
Companies that paid Dr. Williamson 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. John Charles Williamson has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Williamson, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Williamson
- 2011
- CMS Stage 1 2012
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. John Charles Williamson graduated from Joe R. & Teresa Lozano Long School of Medicine
Dr. Williamson graduated from Joe R. & Teresa Lozano Long School of Medicine in 1976.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Dr. John Charles Williamson accepts plans from 13 insurance carriers
Dr. Williamson is in network with 13 carriers, including United Healthcare, Aetna and Alliant Health Plans. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- United Healthcare
- Aetna
- Alliant Health Plans
- Elevance
- HCSC
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- Blue Cross Blue Shield of Michigan
- +5 more carriersWith a free account
Plan types Dr. Williamson accepts, by number of carriers
- HMO8
- PPO7
- EPO2
- POS2
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Charles Williamson'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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 Charles Williamson
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 Charles Williamson's NPI number?
Dr. John Charles Williamson's NPI number is 1073566709. It was assigned on May 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Charles Williamson?
Dr. John Charles Williamson is a urologist in Jacksonville, Florida. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. John Charles Williamson practice?
Dr. Williamson practices at 800 Prudential Dr, Jacksonville, FL 32207.
What is Dr. John Charles Williamson's office phone number?
The practice phone on file for Dr. Williamson is (512) 443-5988.
What is Dr. John Charles Williamson's medical license number?
Dr. Williamson's Texas license number on file is E6690.
Does Dr. John Charles Williamson accept Medicare?
Yes. CMS data shows Dr. Williamson billed Medicare for 791 services in 2021.
Is Dr. John Charles Williamson board certified?
Yes. Dr. Williamson is board certified in urology by the American Board of Urology.
What services does Dr. John Charles Williamson bill to Medicare?
In 2021, Dr. Williamson's most billed Medicare services were care management and other visits (99490), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. John Charles Williamson go to medical school?
Dr. Williamson graduated from Joe R. & Teresa Lozano Long School of Medicine in 1976.
What drugs does Dr. John Charles Williamson prescribe most?
In 2023 Medicare Part D data, Dr. Williamson's most prescribed drugs by claims were Myrbetriq.
Show 5 more questionsShow fewer questions
Has Dr. John Charles Williamson received payments from drug or device companies?
CMS Open Payments shows $4,941 in general payments to Dr. Williamson from 33 companies from 2016 to 2024. The largest total came from Astellas Pharma US Inc.
How long has Dr. John Charles Williamson been practicing?
Dr. Williamson graduated from medical school in 1976, 50 years ago.
Does Dr. John Charles Williamson do research?
Dmand AI links 30 publications to Dr. Williamson, published from 2001 to 2024.
Who does Dr. John Charles Williamson publish with?
Dr. Williamson's most frequent co-authors are Vera Parkhurst Luther, MD (3 shared papers), Christopher Alan Ohl, MD (3 shared papers) and Jason Albert Chou, MD (1 shared paper).
What insurance does Dr. John Charles Williamson accept?
Dr. Williamson is in network with 13 carriers, including United Healthcare, Aetna and Alliant Health Plans. HMO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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