Dr. John David Williamson, MD
- Medicare services, 2024
- 784
- Medicare patients, 2024
- 316
- Part D claims, 2024
- 368
- MIPS score, 2024
- 84
- Hospital affiliations
- 2
- Practice address
- 2095 Henry Tecklenburg Drive, Charleston, SC 29414
- Practice phone
- Call (843) 402-1006
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Williamson's professional email, personal email and mobile number
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Dr. John David Williamson is a family medicine physician in Charleston, South Carolina
Dr. Williamson practices at Bon Secours St. Francis Hospital in Charleston, South Carolina, part of Bon Secours Mercy Health.
Dr. Williamson's NPI, 1043308661, was assigned on October 10, 2006. Dr. Williamson graduated from Medical University of South Carolina College of Medicine in 2006. Dr. Williamson holds South Carolina license 29084.
- NPI
- 1043308661NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204986565
- NPI enumeration date
- October 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 402-1006
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John David Williamson practices at Bon Secours St. Francis Hospital in Charleston, South Carolina
Dr. Williamson's primary practice is Bon Secours St. Francis Hospital, at 2095 Henry Tecklenburg Drive, Charleston, SC 29414 in Charleston County. The practice phone is (843) 402-1006.
- Bon Secours St. Francis Hospital2095 Henry Tecklenburg Drive, Charleston, SC 29414 · Charleston CountyPhone(843) 402-1006
Source: Dmand AI Affiliation Data
Dr. John David Williamson is affiliated with 2 sites of care and 1 medical group
Dr. Williamson's primary practice is Bon Secours St. Francis Hospital in Charleston, South Carolina, part of Bon Secours Mercy Health. Dr. Williamson is also affiliated with Roper Hospital. The medical group on file is 24ON Physicians of SC, LLC.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John David Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williamson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bon Secours St. Francis Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Bon Secours Mercy Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John David Williamson is one of 2,356 family medicine physicians in South Carolina
Family medicine is Dr. Williamson's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Williamson's licenses on file in 2 states: South Carolina and Tennessee.
Specialties and state licenses
- Family medicine, South CarolinaPrimary
- Tennessee license
Family medicine physicians near Dr. Williamson
Counts of family medicine physicians 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 David Williamson billed Medicare for 784 services in 2024
CMS data shows 784 Medicare services from Dr. Williamson across 4 procedure codes in 2024, for 316 Medicare patients. Medicare paid $57,785 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williamson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8032024: 7842%
Dr. Williamson compared with the South Carolina median for family medicine physicians, 2024
- Dr. Williamson
- South Carolina median
- Medicare services
- 784vs 7445% above
- Medicare patients
- 316vs 23236% above
- Part D claims
- 114vs 1,02389% below
Medians across 2,295 family medicine physicians in South Carolina with Dmand AI profiles that report each measure.
Dr. Williamson'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John David Williamson treated 316 Medicare patients in 2024, average age 78
CMS counts 316 Medicare patients who saw Dr. Williamson in 2024. The largest group is 75 to 84, with 129 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.91, 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. Williamson's median patient age at 75, with 59% women.
Dr. Williamson's Medicare patients by age, 2024
Dr. Williamson's Medicare patients by sex, 2024
- Women17054%
- Men14646%
Chronic conditions among Dr. Williamson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Anxiety45%
- Diabetes45%
- Chronic kidney disease43%
- Atrial fibrillation41%
- Heart failure41%
Share of Medicare patients with each condition. A patient can have several.
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 75
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. John David Williamson wrote 368 Medicare Part D claims in 2024
In 2024, Dr. Williamson wrote 368 Medicare Part D claims for 156 patients. 86% of them were for generic drugs. CMS names the drug for 114 of them, across 6 drugs with 11 or more claims each, at $595 in total drug cost. In 2023, CMS named 189 claims across 10 drugs.
Dr. Williamson's Part D claims by kind of drug, 2024
- Generic318 claims86%
- Brand-name and other50 claims14%
Dr. Williamson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Williamson's Part D claims, 2024
- Opioids5%18 of 368 claims
- Antibiotics20%73 of 368 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1892024: 11440%
Drugs named by CMS: 6 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. John David Williamson 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. Williamson for performance year 2024, reported as part of a group. Dr. Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Williamson's MIPS scores, performance year 2024
- 84of 100Final score
- 79.2of 100Quality
- 40of 100Improvement Activities
- 70of 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. John David Williamson graduated from Medical University of South Carolina College of Medicine
Dr. Williamson graduated from Medical University of South Carolina College of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John David 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 | 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)Medicare Part D Prescribers - 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 David 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 David Williamson's NPI number?
Dr. John David Williamson's NPI number is 1043308661. It was assigned on October 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John David Williamson?
Dr. John David Williamson is a family medicine physician in Charleston, South Carolina. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John David Williamson practice?
Dr. Williamson practices at 2095 Henry Tecklenburg Drive, Charleston, SC 29414. Dr. Williamson's primary practice is Bon Secours St. Francis Hospital in Charleston, South Carolina, part of Bon Secours Mercy Health.
What is Dr. John David Williamson's office phone number?
The practice phone on file for Dr. Williamson is (843) 402-1006.
What is Dr. John David Williamson's medical license number?
Dr. Williamson holds South Carolina license 29084, one of the licenses on file in 2 states.
Which states has Dr. John David Williamson been licensed in?
Dmand AI has state licenses on file for Dr. Williamson in South Carolina and Tennessee.
Which hospitals is Dr. John David Williamson affiliated with?
Dr. Williamson practices at Bon Secours St. Francis Hospital in Charleston, South Carolina. Dr. Williamson is also affiliated with Roper Hospital.
What medical group is Dr. John David Williamson part of?
Dr. Williamson is linked to 24ON Physicians of SC, LLC.
Does Dr. John David Williamson accept Medicare?
Yes. CMS data shows Dr. Williamson billed Medicare for 784 services in 2024, and Dr. Williamson accepts Medicare assignment.
What is Dr. John David Williamson's MIPS score?
Dr. Williamson's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. John David Williamson see?
CMS counts 316 Medicare patients who saw Dr. Williamson in 2024, with an average age of 78.
What services does Dr. John David Williamson bill to Medicare?
In 2024, Dr. Williamson's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99223).
Where did Dr. John David Williamson go to medical school?
Dr. Williamson graduated from Medical University of South Carolina College of Medicine in 2006.
What drugs does Dr. John David Williamson prescribe most?
In 2024 Medicare Part D data, Dr. Williamson's most prescribed drugs by claims were Atorvastatin Calcium, Amoxicillin-Clavulanate Potass and Prednisone.
How long has Dr. John David Williamson been practicing?
Dr. Williamson graduated from medical school in 2006, 20 years ago.
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