Dr. John Courtenay Macilwaine, MD
- Medicare services, 2024
- 260
- Medicare patients, 2024
- 138
- Part D claims, 2024
- 32
- Hospital affiliations
- 1
- Industry payments
- $732
- Practice address
- 125 Doughty St, Charleston, SC 29403
- Practice phone
- Call (843) 769-9450
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John C. Macilwaine, M.D.
Charleston, South Carolina
Find Dr. Macilwaine'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 Courtenay Macilwaine is an orthopaedic hand surgery physician in Charleston, South Carolina
Dr. Macilwaine practices at John C. Macilwaine, M.D. in Charleston, South Carolina.
Dr. Macilwaine's NPI, 1962496802, was assigned on September 7, 2005. Dr. Macilwaine graduated from University of Virginia School of Medicine in 1978. Dr. Macilwaine holds South Carolina license 29539.
- NPI
- 1962496802NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698873792
- NPI enumeration date
- September 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 769-9450
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Courtenay Macilwaine practices at John C. Macilwaine, M.D. in Charleston, South Carolina
Dr. Macilwaine's primary practice is John C. Macilwaine, M.D., at 125 Doughty St, Charleston, SC 29403 in Charleston County. The practice phone is (843) 769-9450.
- John C. Macilwaine, M.D.125 Doughty St, Charleston, SC 29403 · Charleston CountyPhone(843) 769-9450
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Courtenay Macilwaine is affiliated with 3 sites of care
Dr. Macilwaine's primary practice is John C. Macilwaine, M.D. in Charleston, South Carolina. Dr. Macilwaine is also affiliated with Bon Secours St. Francis Hospital. Dmand AI also links Dr. Macilwaine to 1 more physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Courtenay Macilwaine's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Macilwaine practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John C. Macilwaine, M.D. | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Courtenay Macilwaine is one of 47 orthopaedic hand surgery physicians in South Carolina
Hand surgery is Dr. Macilwaine's primary specialty in the NPI Registry, under taxonomy code 207XS0106X. Dmand AI has Dr. Macilwaine's licenses on file in 2 states: South Carolina and Virginia.
Specialties and state licenses
- Orthopaedic hand surgery, South CarolinaPrimary
- Orthopaedic surgery, Virginia
Orthopaedic hand surgery physicians near Dr. Macilwaine
Counts of orthopaedic hand surgery 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 Courtenay Macilwaine billed Medicare for 260 services in 2024
CMS data shows 260 Medicare services from Dr. Macilwaine across 8 procedure codes in 2024, for 138 Medicare patients. Medicare paid $12,767 for them.
Dr. Macilwaine's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1672024: 23340%
- Drugs given in the office
- 2023: 02024: 14
- Surgery
- 2023: 142024: 137%
Where Dr. Macilwaine's Medicare services took place, 2024
- In an office21984%
- In a facility4116%
Dr. Macilwaine compared with the South Carolina median for orthopaedic hand surgery physicians, 2024
- Dr. Macilwaine
- South Carolina median
- Medicare services
- 260vs 1,69985% below
- Medicare patients
- 138vs 42467% below
- Part D claims
- 11vs 10389% below
Medians across 49 orthopaedic hand surgery physicians in South Carolina with Dmand AI profiles that report each measure.
Dr. Macilwaine'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. Macilwaine?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Macilwaine and other orthopaedic hand surgery physicians in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Courtenay Macilwaine treated 138 Medicare patients in 2024, average age 75
CMS counts 138 Medicare patients who saw Dr. Macilwaine in 2024. The largest group is 75 to 84, with 61 patients. 75% of them have high cholesterol, and 72% have high blood pressure. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Macilwaine's median patient age at 70, with 70% women.
Dr. Macilwaine's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Macilwaine's Medicare patients by sex, 2024
- Women8562%
- Men5338%
Chronic conditions among Dr. Macilwaine's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis56%
- Anxiety31%
- Depression28%
- Mood disorders28%
- Chronic kidney disease24%
- Osteoporosis24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Macilwaine's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Courtenay Macilwaine wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Macilwaine wrote 32 Medicare Part D claims for 24 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $26 in total drug cost. In 2023, CMS named 16 claims across 1 drug.
Dr. Macilwaine'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. Macilwaine's Part D claims, 2024
- Opioids38%12 of 32 claims
- Antibiotics34%11 of 32 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: 162024: 1131%
Drugs named by CMS: 1 in 2024, 1 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
How Dr. John Courtenay Macilwaine takes part in Medicare
Dr. Macilwaine accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Courtenay Macilwaine received $732 in industry payments from 2018 to 2025
CMS Open Payments shows 6 general payments to Dr. Macilwaine from 5 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Kerecis Limited paid the most, $259.
General payments to Dr. Macilwaine by program year, 2018 to 2025
Companies that paid Dr. Macilwaine the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Courtenay Macilwaine graduated from University of Virginia School of Medicine
Dr. Macilwaine graduated from University of Virginia School of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Courtenay Macilwaine'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Industry payments | Open Payments (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 Courtenay Macilwaine
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 Courtenay Macilwaine's NPI number?
Dr. John Courtenay Macilwaine's NPI number is 1962496802. It was assigned on September 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Courtenay Macilwaine?
Dr. John Courtenay Macilwaine is an orthopaedic hand surgery physician in Charleston, South Carolina. The primary specialty in the NPI Registry is Orthopaedic Hand Surgery Physician (taxonomy code 207XS0106X).
Where does Dr. John Courtenay Macilwaine practice?
Dr. Macilwaine practices at 125 Doughty St, Charleston, SC 29403. Dr. Macilwaine's primary practice is John C. Macilwaine, M.D. in Charleston, South Carolina. Dmand AI also links Dr. Macilwaine to 1 physician office.
What is Dr. John Courtenay Macilwaine's office phone number?
The practice phone on file for Dr. Macilwaine is (843) 769-9450.
What is Dr. John Courtenay Macilwaine's medical license number?
Dr. Macilwaine holds South Carolina license 29539, one of the licenses on file in 2 states.
Which states has Dr. John Courtenay Macilwaine been licensed in?
Dmand AI has state licenses on file for Dr. Macilwaine in South Carolina and Virginia.
Which hospitals is Dr. John Courtenay Macilwaine affiliated with?
Dr. Macilwaine is affiliated with Bon Secours St. Francis Hospital.
Does Dr. John Courtenay Macilwaine accept Medicare?
Yes. CMS data shows Dr. Macilwaine billed Medicare for 260 services in 2024, and Dr. Macilwaine accepts Medicare assignment.
How many Medicare patients does Dr. John Courtenay Macilwaine see?
CMS counts 138 Medicare patients who saw Dr. Macilwaine in 2024, with an average age of 75.
What services does Dr. John Courtenay Macilwaine bill to Medicare?
In 2024, Dr. Macilwaine's most billed Medicare services were office visit, established patient (99212), office visit, new patient (99203) and emergency department visit (99283).
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Where did Dr. John Courtenay Macilwaine go to medical school?
Dr. Macilwaine graduated from University of Virginia School of Medicine in 1978.
What drugs does Dr. John Courtenay Macilwaine prescribe most?
In 2024 Medicare Part D data, Dr. Macilwaine's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Dr. John Courtenay Macilwaine received payments from drug or device companies?
CMS Open Payments shows $732 in general payments to Dr. Macilwaine from 5 companies from 2018 to 2025. The largest total came from Kerecis Limited.
How long has Dr. John Courtenay Macilwaine been practicing?
Dr. Macilwaine graduated from medical school in 1978, 48 years ago.
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