Dr. Margaret T. Macdowell, MD
- Medicare services, 2024
- 830
- Medicare patients, 2024
- 92
- Part D claims, 2024
- 17
- MIPS score, 2024
- 86
- Hospital affiliations
- 2
- Practice address
- 9330 Medical Plaza Dr, Charleston, SC 29406
- Practice phone
- Call (843) 847-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Macdowell'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. Margaret T. Macdowell is a radiation oncologist in Charleston, South Carolina
Dr. Macdowell practices at HCA Healthcare Trident Hospital in Charleston, South Carolina, part of HCA Healthcare.
Dr. Macdowell's NPI, 1437123288, was assigned on February 16, 2006. Dr. Macdowell graduated from Medical University of South Carolina College of Medicine in 1989. Dr. Macdowell holds South Carolina license 15033.
- NPI
- 1437123288NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557395027
- NPI enumeration date
- February 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 847-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margaret T. Macdowell practices at HCA Healthcare Trident Hospital in Charleston, South Carolina
Dr. Macdowell's primary practice is HCA Healthcare Trident Hospital, at 9330 Medical Plaza Dr, Charleston, SC 29406 in Charleston County. The practice phone is (843) 847-4100.
- HCA Healthcare Trident Hospital9330 Medical Plaza Dr, Charleston, SC 29406 · Charleston CountyPhone(843) 847-4100
Source: Dmand AI Affiliation Data
Dr. Margaret T. Macdowell is affiliated with 2 sites of care and 2 medical groups
Dr. Macdowell's primary practice is HCA Healthcare Trident Hospital in Charleston, South Carolina, part of HCA Healthcare. Dr. Macdowell is also affiliated with Bon Secours St. Francis Hospital. The medical group on file is Coastal Carolina Surgical Specialists. Dmand AI also links Dr. Macdowell 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. Margaret T. Macdowell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Macdowell practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Healthcare Trident Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margaret T. Macdowell is one of 79 radiation oncologists in South Carolina
Radiation oncology is Dr. Macdowell's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Macdowell is licensed in South Carolina.
Specialties and state licenses
- Radiation oncology, South CarolinaPrimary
Radiation oncologists near Dr. Macdowell
Counts of radiation oncologists 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. Margaret T. Macdowell billed Medicare for 830 services in 2024
CMS data shows 830 Medicare services from Dr. Macdowell across 9 procedure codes in 2024, for 92 Medicare patients. Medicare paid $59,743 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Macdowell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,2362024: 79835%
- Office and hospital visits
- 2023: 572024: 3244%
- Other services
- 2023: 1142024: 0100%
Dr. Macdowell compared with the South Carolina median for radiation oncologists, 2024
- Dr. Macdowell
- South Carolina median
- Medicare services
- 830vs 1,90456% below
- Medicare patients
- 92vs 24562% below
- Part D claims
- 18vs 6673% below
Medians across 80 radiation oncologists in South Carolina with Dmand AI profiles that report each measure.
Dr. Macdowell'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Macdowell and other radiation oncologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Margaret T. Macdowell treated 92 Medicare patients in 2024, average age 73
CMS counts 92 Medicare patients who saw Dr. Macdowell in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Macdowell's median patient age at 72, with 49% women.
Dr. Macdowell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Macdowell's Medicare patients by sex, 2024
- Women3235%
- Men6065%
Chronic conditions among Dr. Macdowell's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes41%
- Ischemic heart disease33%
- Anxiety24%
- Chronic kidney disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Macdowell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Margaret T. Macdowell wrote 17 Medicare Part D claims in 2024
In 2024, Dr. Macdowell wrote 17 Medicare Part D claims. 94% of them were for generic drugs. They cover 1 drug, with $332 in total drug cost. In 2021, CMS named 11 claims across 1 drug.
Dr. Macdowell's Part D claims by kind of drug, 2024
- Generic16 claims94%
- Brand-name and other1 claims6%
Dr. Macdowell's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 112022: 1864%
Drugs named by CMS: 1 in 2022, 1 in 2021.
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. Margaret T. Macdowell scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Macdowell for performance year 2024, reported as part of a group. Dr. Macdowell accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Macdowell's MIPS scores, performance year 2024
- 86of 100Final score
- 78.2of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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. Margaret T. Macdowell received $2,211 in industry payments from 2016 to 2025
CMS Open Payments shows 100 general payments to Dr. Macdowell from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $225.
General payments to Dr. Macdowell by program year, 2016 to 2025
Companies that paid Dr. Macdowell the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Margaret T. Macdowell graduated from Medical University of South Carolina College of Medicine
Dr. Macdowell graduated from Medical University of South Carolina College of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Margaret T. Macdowell'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) |
| 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. Margaret T. Macdowell
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. Margaret T. Macdowell's NPI number?
Dr. Margaret T. Macdowell's NPI number is 1437123288. It was assigned on February 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Margaret T. Macdowell?
Dr. Margaret T. Macdowell is a radiation oncologist in Charleston, South Carolina. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Margaret T. Macdowell practice?
Dr. Macdowell practices at 9330 Medical Plaza Dr, Charleston, SC 29406. Dr. Macdowell's primary practice is HCA Healthcare Trident Hospital in Charleston, South Carolina, part of HCA Healthcare. Dmand AI also links Dr. Macdowell to 1 medical group.
What is Dr. Margaret T. Macdowell's office phone number?
The practice phone on file for Dr. Macdowell is (843) 847-4100.
What is Dr. Margaret T. Macdowell's medical license number?
Dr. Macdowell holds South Carolina license 15033.
Which hospitals is Dr. Margaret T. Macdowell affiliated with?
Dr. Macdowell practices at HCA Healthcare Trident Hospital in Charleston, South Carolina. Dr. Macdowell is also affiliated with Bon Secours St. Francis Hospital.
What medical group is Dr. Margaret T. Macdowell part of?
Dr. Macdowell is linked to Coastal Carolina Surgical Specialists. Dmand AI links Dr. Macdowell to 1 more medical group.
Does Dr. Margaret T. Macdowell accept Medicare?
Yes. CMS data shows Dr. Macdowell billed Medicare for 830 services in 2024, and Dr. Macdowell accepts Medicare assignment.
What is Dr. Margaret T. Macdowell's MIPS score?
Dr. Macdowell's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
How many Medicare patients does Dr. Margaret T. Macdowell see?
CMS counts 92 Medicare patients who saw Dr. Macdowell in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Margaret T. Macdowell bill to Medicare?
In 2024, Dr. Macdowell's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77427).
Where did Dr. Margaret T. Macdowell go to medical school?
Dr. Macdowell graduated from Medical University of South Carolina College of Medicine in 1989.
What drugs does Dr. Margaret T. Macdowell prescribe most?
In 2022 Medicare Part D data, Dr. Macdowell's most prescribed drugs by claims were Tamsulosin HCl.
Has Dr. Margaret T. Macdowell received payments from drug or device companies?
CMS Open Payments shows $2,211 in general payments to Dr. Macdowell from 30 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Margaret T. Macdowell been practicing?
Dr. Macdowell graduated from medical school in 1989, 37 years ago.
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