Dr. Katherine Elizabeth Twombley, MD
- Medicare services, 2021
- 49
- Part D claims, 2024
- 397
- Publications
- 61
- MIPS score, 2024
- 79
- Hospital affiliations
- 1
- Practice address
- 1208 2 Island Ct, Mount Pleasant, SC 29466
- Practice phone
- Call (803) 286-4666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
MUSC Physicians
Mount Pleasant, South Carolina
Find Dr. Twombley'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. Katherine Elizabeth Twombley is a pediatric nephrology physician in Mount Pleasant, South Carolina
Dr. Twombley practices at MUSC Physicians in Mount Pleasant, South Carolina.
Dr. Twombley's NPI, 1356532311, was assigned on August 6, 2007. Dr. Twombley graduated from Medical University of South Carolina College of Medicine in 2004. Dr. Twombley holds South Carolina license 34967.
- NPI
- 1356532311NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618000555
- NPI enumeration date
- August 6, 2007
- NPI status
- Active
- Practice phone
- (803) 286-4666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Katherine Elizabeth Twombley practices at MUSC Physicians in Mount Pleasant, South Carolina
Dr. Twombley's primary practice is MUSC Physicians, at 1208 2 Island Ct, Mount Pleasant, SC 29466 in Charleston County. The practice phone is (803) 286-4666.
- MUSC Physicians1208 2 Island Ct, Mount Pleasant, SC 29466 · Charleston CountyPhone(803) 286-4666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Katherine Elizabeth Twombley is affiliated with 5 sites of care and 3 medical groups
Dr. Twombley's primary practice is MUSC Physicians in Mount Pleasant, South Carolina. Dr. Twombley is also affiliated with MUSC Health University Medical Center. The medical group on file is MUSC Health. Dmand AI also links Dr. Twombley to 3 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Katherine Elizabeth Twombley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Twombley practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MUSC Physicians | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Elizabeth Twombley is one of 14 pediatric nephrology physicians in South Carolina
Pediatric nephrology is Dr. Twombley's primary specialty in the NPI Registry, under taxonomy code 2080P0210X. Dmand AI has Dr. Twombley's licenses on file in 2 states: South Carolina and Texas.
Specialties and state licenses
- Pediatric nephrology, South CarolinaPrimary
- Texas license
Pediatric nephrology physicians near Dr. Twombley
Counts of pediatric nephrology 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. Katherine Elizabeth Twombley billed Medicare for 49 services in 2021
CMS data shows 49 Medicare services from Dr. Twombley across 1 procedure code in 2021, all of them office visits. Medicare paid $5,512 for them. Every service was in an office.
Dr. Twombley'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Twombley and other pediatric nephrology physicians in South Carolina.
Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data
Dr. Katherine Elizabeth Twombley's patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Dr. Twombley's median patient age at 15, with 51% women.
Dr. Twombley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Katherine Elizabeth Twombley wrote 397 Medicare Part D claims in 2024
In 2024, Dr. Twombley wrote 397 Medicare Part D claims for 14 patients. 89% of them were for generic drugs. CMS names the drug for 233 of them, across 13 drugs with 11 or more claims each, at $14,534 in total drug cost. In 2023, CMS named 220 claims across 11 drugs.
Dr. Twombley's Part D claims by kind of drug, 2024
- Generic355 claims89%
- Brand-name and other42 claims11%
Dr. Twombley'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. Twombley's Part D claims, 2024
- Antibiotics10%39 of 397 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: 2202024: 2336%
Drugs named by CMS: 13 in 2024, 11 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. Katherine Elizabeth Twombley scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Twombley for performance year 2024, reported as part of a group.
Dr. Twombley's MIPS scores, performance year 2024
- 79of 100Final score
- 62.4of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Katherine Elizabeth Twombley has 61 publications on record
Dmand AI links 61 papers to Dr. Twombley, published from 2010 to 2025. 2021 was the busiest year, with 7. The most frequent topics are Kidney Transplantation, Graft Rejection and Kidney. Dr. Twombley has published most often in Pediatr Transplant. Dr. Twombley's most frequent co-authors are David Thomas Selewski, MD, Rasheed A. Gbadegesin, MD and Mahmoud Kallash, MD.
Dr. Twombley's papers by year, 2016 to 2025
Topics Dr. Twombley writes about most
- Kidney Transplantation
- Graft Rejection
- Kidney
- Acute Kidney Injury
- Biopsy
- Blood Pressure
- Hypertension
- Immunosuppressive Agents
Dr. Twombley's most frequent co-authors
- David Thomas Selewski, MD9 shared papers
- Rasheed A. Gbadegesin, MD7 shared papers
- Mahmoud Kallash, MD7 shared papers
Recent publications by Dr. Twombley
Pediatr Nephrol
See who Dr. Twombley researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Twombley works with, so you can find a warm path to the right pediatric nephrology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Katherine Elizabeth Twombley received $63,410 in industry payments from 2016 to 2025
CMS Open Payments shows 69 general payments to Dr. Twombley from 8 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 36% of the total. Horizon Pharma plc paid the most, $26,361. It also lists 3 research payments totaling $3,170 in 2018.
General payments to Dr. Twombley by program year, 2016 to 2025
General payments to Dr. Twombley by kind, 2016 to 2025
- Honoraria$23,02736%
- Consulting fees$18,49829%
- Speaker and faculty fees$10,64817%
- Travel and lodging$5,3088%
- Other$5,6899%
Companies that paid Dr. Twombley 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. Katherine Elizabeth Twombley graduated from Medical University of South Carolina College of Medicine
Dr. Twombley graduated from Medical University of South Carolina College of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine Elizabeth Twombley'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Katherine Elizabeth Twombley
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. Katherine Elizabeth Twombley's NPI number?
Dr. Katherine Elizabeth Twombley's NPI number is 1356532311. It was assigned on August 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Elizabeth Twombley?
Dr. Katherine Elizabeth Twombley is a pediatric nephrology physician in Mount Pleasant, South Carolina. The primary specialty in the NPI Registry is Pediatric Nephrology Physician (taxonomy code 2080P0210X).
Where does Dr. Katherine Elizabeth Twombley practice?
Dr. Twombley practices at 1208 2 Island Ct, Mount Pleasant, SC 29466. Dr. Twombley's primary practice is MUSC Physicians in Mount Pleasant, South Carolina. Dmand AI also links Dr. Twombley to 3 group practices and clinics and 2 medical groups.
What is Dr. Katherine Elizabeth Twombley's office phone number?
The practice phone on file for Dr. Twombley is (803) 286-4666.
What is Dr. Katherine Elizabeth Twombley's medical license number?
Dr. Twombley holds South Carolina license 34967, one of the licenses on file in 2 states.
Which states has Dr. Katherine Elizabeth Twombley been licensed in?
Dmand AI has state licenses on file for Dr. Twombley in South Carolina and Texas.
Which hospitals is Dr. Katherine Elizabeth Twombley affiliated with?
Dr. Twombley is affiliated with MUSC Health University Medical Center.
What medical group is Dr. Katherine Elizabeth Twombley part of?
Dr. Twombley is linked to MUSC Health. Dmand AI links Dr. Twombley to 2 more medical groups.
Does Dr. Katherine Elizabeth Twombley accept Medicare?
Yes. CMS data shows Dr. Twombley billed Medicare for 49 services in 2021.
What is Dr. Katherine Elizabeth Twombley's MIPS score?
Dr. Twombley's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
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What services does Dr. Katherine Elizabeth Twombley bill to Medicare?
In 2021, Dr. Twombley's most billed Medicare services were office visit, established patient (99215).
Where did Dr. Katherine Elizabeth Twombley go to medical school?
Dr. Twombley graduated from Medical University of South Carolina College of Medicine in 2004.
What drugs does Dr. Katherine Elizabeth Twombley prescribe most?
In 2024 Medicare Part D data, Dr. Twombley's most prescribed drugs by claims were Famotidine, Amlodipine Besylate and Prednisone.
Has Dr. Katherine Elizabeth Twombley received payments from drug or device companies?
CMS Open Payments shows $63,410 in general payments to Dr. Twombley from 8 companies from 2016 to 2025. The largest total came from Horizon Pharma plc.
How long has Dr. Katherine Elizabeth Twombley been practicing?
Dr. Twombley graduated from medical school in 2004, 22 years ago.
Does Dr. Katherine Elizabeth Twombley do research?
Dmand AI links 61 publications to Dr. Twombley, published from 2010 to 2025.
Who does Dr. Katherine Elizabeth Twombley publish with?
Dr. Twombley's most frequent co-authors are David Thomas Selewski, MD (9 shared papers), Rasheed A. Gbadegesin, MD (7 shared papers) and Mahmoud Kallash, MD (7 shared papers).
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