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Dr. Derek John Feussner, MD
NPI1396004479PAC ID7012224082
- Medicare services, 2024
- 1,075
- Medicare patients, 2024
- 543
- Part D claims, 2024
- 1,671
- Publications
- 3
- MIPS score, 2024
- 94
- Practice address
- 2073 Charlie Hall Blvd, Charleston, SC 29414
- Practice phone
- Call (843) 571-0643
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Palmetto Digestive Disease & Endoscopy Center - Charleston
Surgery Center - Medicare-Certified · Charleston, South Carolina
Find Dr. Feussner's professional email, personal email and mobile number
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Dr. Derek John Feussner is a gastroenterologist in Charleston, South Carolina
Dr. Feussner practices at Palmetto Digestive Disease & Endoscopy Center - Charleston in Charleston, South Carolina.
Dr. Feussner's NPI, 1396004479, was assigned on May 10, 2012. Dr. Feussner graduated from Medical University of South Carolina College of Medicine in 2012. Dr. Feussner holds South Carolina license LL38558.
NPI and contact details
- NPI
- 1396004479NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012224082
- NPI enumeration date
- May 10, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 571-0643
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Derek John Feussner practices at Palmetto Digestive Disease & Endoscopy Center - Charleston in Charleston, South Carolina
Dr. Feussner's primary practice is Palmetto Digestive Disease & Endoscopy Center - Charleston, at 2073 Charlie Hall Blvd, Charleston, SC 29414. The practice phone is (843) 571-0643.
- Palmetto Digestive Disease & Endoscopy Center - Charleston2073 Charlie Hall Blvd, Charleston, SC 29414Phone(843) 571-0643
Source: Dmand AI Affiliation Data
Dr. Derek John Feussner is affiliated with 6 sites of care and 1 medical group
Dr. Feussner's primary practice is Palmetto Digestive Disease & Endoscopy Center - Charleston in Charleston, South Carolina. Dr. Feussner is also affiliated with Roper Hospital. The medical group on file is Palmetto Digestive Health Specialists. Dmand AI also links Dr. Feussner to 4 more hospitals, each named with a free account.
Palmetto Digestive Disease & Endoscopy Center - CharlestonPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Derek John Feussner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feussner practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Palmetto Digestive Disease & Endoscopy Center - Charleston | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Derek John Feussner is one of 255 gastroenterologists in South Carolina
Gastroenterology is Dr. Feussner's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Feussner is licensed in South Carolina.
Specialties and state licenses
- Gastroenterology, South CarolinaPrimary
Gastroenterologists near Dr. Feussner
Counts of gastroenterologists 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. Derek John Feussner billed Medicare for 1,075 services in 2024
CMS data shows 1,075 Medicare services from Dr. Feussner across 13 procedure codes in 2024, for 543 Medicare patients. Medicare paid $114,525 for them.
Medicare services, 20241,075
Medicare patients543
Paid by Medicare$114,525
Procedure codes13
Dr. Feussner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5292024: 60114%
- Surgery
- 2023: 3992024: 4185%
- Other services
- 2023: 402024: 5640%
- Lab and pathology
- 2023: 1622024: 0100%
Where Dr. Feussner's Medicare services took place, 2024
- In an office64760%
- In a facility42840%
Dr. Feussner compared with the South Carolina median for gastroenterologists, 2024
- Dr. Feussner
- South Carolina median
- Medicare services
- 1,075vs 74544% above
- Medicare patients
- 543vs 44522% above
- Part D claims
- 1,474vs 4973.0 times
Medians across 249 gastroenterologists in South Carolina with Dmand AI profiles that report each measure.
Dr. Feussner'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. Feussner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Feussner and other gastroenterologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Derek John Feussner treated 543 Medicare patients in 2024, average age 74
CMS counts 543 Medicare patients who saw Dr. Feussner in 2024. The largest group is 65 to 74, with 272 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Feussner's median patient age at 57, with 54% women.
Medicare patients, 2024543
Average age74
Average risk score1.11
Also on Medicaid4%
Dr. Feussner's Medicare patients by age, 2024
Dr. Feussner's Medicare patients by sex, 2024
- Women31458%
- Men22942%
Chronic conditions among Dr. Feussner's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis50%
- Diabetes28%
- Anxiety27%
- Ischemic heart disease26%
- Mood disorders25%
- Chronic kidney disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Feussner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Derek John Feussner wrote 1,671 Medicare Part D claims in 2024
In 2024, Dr. Feussner wrote 1,671 Medicare Part D claims for 556 patients. 80% of them were for generic drugs. CMS names the drug for 1,474 of them, across 34 drugs with 11 or more claims each, at $370,722 in total drug cost. In 2023, CMS named 1,099 claims across 32 drugs.
Part D claims, 20241,671
Drugs named by CMS34
Total drug cost$370,722
Part D patients556
Dr. Feussner's Part D claims by kind of drug, 2024
- Generic1,338 claims80%
- Brand-name and other333 claims20%
Dr. Feussner'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. Feussner's Part D claims, 2024
- Opioids1%11 of 1,671 claims
- Antibiotics5%85 of 1,671 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: 1,0992024: 1,47434%
Drugs named by CMS: 34 in 2024, 32 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. Derek John Feussner scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Feussner for performance year 2024, reported as part of a group. Dr. Feussner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 171 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Feussner, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Feussner's MIPS scores, performance year 2024
- 94of 100Final score
- 100of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Feussner ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 87th percentile171 procedures
- Colonoscopy
- 84th percentile123 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Derek John Feussner has 3 publications on record
Dmand AI links 3 papers to Dr. Feussner in 2017. Dr. Feussner's most frequent co-authors are Gregory A. Cote, MD, MS, Peter B. Cotton, MD and Ricardo Tadayoshi Barbosa Yamada, MD.
Papers3
Dr. Feussner's most frequent co-authors
- Gregory A. Cote, MD, MS1 shared paper
- Peter B. Cotton, MD1 shared paper
- Ricardo Tadayoshi Barbosa Yamada, MD1 shared paper
Recent publications by Dr. Feussner
Am J Gastroenterol
Acquired Immunodeficiency SyndromeBile DuctsCholangiography
See who Dr. Feussner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Feussner works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Derek John Feussner received $35,949 in industry payments from 2016 to 2025
CMS Open Payments shows 867 general payments to Dr. Feussner from 51 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 57% of the total. Allergan Inc. paid the most, $19,003.
General payments to Dr. Feussner by program year, 2016 to 2025
General payments to Dr. Feussner by kind, 2016 to 2025
$35.9Kin total
- Speaker and faculty fees$20,60057%
- Food and beverage$15,16042%
- Education$1730%
- Consulting fees$150%
Companies that paid Dr. Feussner 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. Derek John Feussner graduated from Medical University of South Carolina College of Medicine
Dr. Feussner graduated from Medical University of South Carolina College of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Derek John Feussner'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)Doctors and Clinicians Utilization Data (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. Derek John Feussner
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. Derek John Feussner's NPI number?
Dr. Derek John Feussner's NPI number is 1396004479. It was assigned on May 10, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Derek John Feussner?
Dr. Derek John Feussner is a gastroenterologist in Charleston, South Carolina. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Derek John Feussner practice?
Dr. Feussner practices at 2073 Charlie Hall Blvd, Charleston, SC 29414. Dr. Feussner's primary practice is Palmetto Digestive Disease & Endoscopy Center - Charleston in Charleston, South Carolina. Dmand AI also links Dr. Feussner to 4 hospitals.
What is Dr. Derek John Feussner's office phone number?
The practice phone on file for Dr. Feussner is (843) 571-0643.
What is Dr. Derek John Feussner's medical license number?
Dr. Feussner holds South Carolina license LL38558.
Which hospitals is Dr. Derek John Feussner affiliated with?
Dr. Feussner is affiliated with Roper Hospital. Dmand AI links Dr. Feussner to 4 more hospitals.
What medical group is Dr. Derek John Feussner part of?
Dr. Feussner is linked to Palmetto Digestive Health Specialists.
Does Dr. Derek John Feussner accept Medicare?
Yes. CMS data shows Dr. Feussner billed Medicare for 1,075 services in 2024, and Dr. Feussner accepts Medicare assignment.
What is Dr. Derek John Feussner's MIPS score?
Dr. Feussner's MIPS final score for performance year 2024 is 94 out of 100, reported as part of a group.
How many Medicare patients does Dr. Derek John Feussner see?
CMS counts 543 Medicare patients who saw Dr. Feussner in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Derek John Feussner bill to Medicare?
In 2024, Dr. Feussner's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: digestive system (45385).
Where did Dr. Derek John Feussner go to medical school?
Dr. Feussner graduated from Medical University of South Carolina College of Medicine in 2012.
What drugs does Dr. Derek John Feussner prescribe most?
In 2024 Medicare Part D data, Dr. Feussner's most prescribed drugs by claims were Pantoprazole Sodium, Famotidine and Omeprazole.
Has Dr. Derek John Feussner received payments from drug or device companies?
CMS Open Payments shows $35,949 in general payments to Dr. Feussner from 51 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Derek John Feussner been practicing?
Dr. Feussner graduated from medical school in 2012, 14 years ago.
Does Dr. Derek John Feussner do research?
Dmand AI links 3 publications to Dr. Feussner.
Who does Dr. Derek John Feussner publish with?
Dr. Feussner's most frequent co-authors are Gregory A. Cote, MD, MS (1 shared paper), Peter B. Cotton, MD (1 shared paper) and Ricardo Tadayoshi Barbosa Yamada, MD (1 shared paper).
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