Dr. David Wayne Seignious, MD
- Medicare services, 2024
- 721
- Medicare patients, 2024
- 209
- Part D claims, 2024
- 1,998
- Hospital affiliations
- 4
- Industry payments
- $25
- Practice address
- 3312 Maybank Hwy, Johns Island, SC 29455
- Practice phone
- Call (843) 557-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
David W Seignious MD
Johns Island, South Carolina
Find Dr. Seignious' 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. David Wayne Seignious is an internist in Johns Island, South Carolina
Dr. Seignious practices at David W Seignious MD in Johns Island, South Carolina.
Dr. Seignious' NPI, 1891726287, was assigned on July 5, 2006. Dr. Seignious graduated from Medical University of South Carolina College of Medicine in 1984. Dr. Seignious holds South Carolina license 13235.
- NPI
- 1891726287NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537155585
- NPI enumeration date
- July 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 557-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Wayne Seignious practices at David W Seignious MD in Johns Island, South Carolina
Dr. Seignious' primary practice is David W Seignious MD, at 3312 Maybank Hwy, Johns Island, SC 29455 in Charleston County. The practice phone is (843) 557-1111.
- David W Seignious MD3312 Maybank Hwy, Johns Island, SC 29455 · Charleston CountyPhone(843) 557-1111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Wayne Seignious is affiliated with 7 sites of care
Dr. Seignious' primary practice is David W Seignious MD in Johns Island, South Carolina. Dr. Seignious is also affiliated with MUSC Health University Medical Center. Dmand AI also links Dr. Seignious to 3 more hospitals, 1 physician office and 1 home health agency, 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. David Wayne Seignious' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Seignious practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| David W Seignious MD | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Wayne Seignious is one of 1,707 internists in South Carolina
Internal medicine is Dr. Seignious' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Seignious is licensed in South Carolina.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
Internists near Dr. Seignious
Counts of internists 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. David Wayne Seignious billed Medicare for 721 services in 2024
CMS data shows 721 Medicare services from Dr. Seignious across 5 procedure codes in 2024, for 209 Medicare patients. Medicare paid $50,532 for them. Every service was in an office.
Dr. Seignious' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6622024: 59710%
- Tests and treatments
- 2023: 802024: 783%
- Other services
- 2023: 632024: 4627%
- Lab and pathology
- 2023: 142024: 0100%
Dr. Seignious compared with the South Carolina median for internists, 2024
- Dr. Seignious
- South Carolina median
- Medicare services
- 721vs 740Close to median
- Medicare patients
- 209vs 25819% below
- Part D claims
- 1,485vs 3314.5 times
Medians across 1,708 internists in South Carolina with Dmand AI profiles that report each measure.
Dr. Seignious' 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. Seignious?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Seignious and other internists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Wayne Seignious treated 209 Medicare patients in 2024, average age 76
CMS counts 209 Medicare patients who saw Dr. Seignious in 2024. The largest group is 65 to 74, with 89 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.74, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Seignious' median patient age at 74, with 50% women.
Dr. Seignious' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Seignious' Medicare patients by sex, 2024
- Women9947%
- Men11053%
Chronic conditions among Dr. Seignious' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis35%
- Diabetes18%
- Atrial fibrillation14%
- Cancer13%
- Chronic kidney disease13%
- Ischemic heart disease13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Seignious' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Wayne Seignious wrote 1,998 Medicare Part D claims in 2024
In 2024, Dr. Seignious wrote 1,998 Medicare Part D claims for 234 patients. 92% of them were for generic drugs. CMS names the drug for 1,485 of them, across 49 drugs with 11 or more claims each, at $67,363 in total drug cost. In 2023, CMS named 1,570 claims across 56 drugs.
Dr. Seignious' Part D claims by kind of drug, 2024
- Generic1,829 claims92%
- Brand-name and other169 claims8%
Dr. Seignious' 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. Seignious' Part D claims, 2024
- Opioids1%13 of 1,998 claims
- Antibiotics2%45 of 1,998 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: 1,5702024: 1,4855%
Drugs named by CMS: 49 in 2024, 56 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. David Wayne Seignious takes part in Medicare
Dr. Seignious 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. David Wayne Seignious received $25 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Seignious from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Symbrium Medical Technology, Inc. paid the most, $25.
Companies that paid Dr. Seignious the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Wayne Seignious graduated from Medical University of South Carolina College of Medicine
Dr. Seignious graduated from Medical University of South Carolina College of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Wayne Seignious'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) |
| 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. David Wayne Seignious
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. David Wayne Seignious' NPI number?
Dr. David Wayne Seignious' NPI number is 1891726287. It was assigned on July 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Wayne Seignious?
Dr. David Wayne Seignious is an internist in Johns Island, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Wayne Seignious practice?
Dr. Seignious practices at 3312 Maybank Hwy, Johns Island, SC 29455. Dr. Seignious' primary practice is David W Seignious MD in Johns Island, South Carolina. Dmand AI also links Dr. Seignious to 3 hospitals, 1 physician office and 1 home health agency.
What is Dr. David Wayne Seignious' office phone number?
The practice phone on file for Dr. Seignious is (843) 557-1111.
What is Dr. David Wayne Seignious' medical license number?
Dr. Seignious holds South Carolina license 13235.
Which hospitals is Dr. David Wayne Seignious affiliated with?
Dr. Seignious is affiliated with MUSC Health University Medical Center. Dmand AI links Dr. Seignious to 3 more hospitals.
Does Dr. David Wayne Seignious accept Medicare?
Yes. CMS data shows Dr. Seignious billed Medicare for 721 services in 2024, and Dr. Seignious accepts Medicare assignment.
How many Medicare patients does Dr. David Wayne Seignious see?
CMS counts 209 Medicare patients who saw Dr. Seignious in 2024, with an average age of 76.
What services does Dr. David Wayne Seignious bill to Medicare?
In 2024, Dr. Seignious' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Where did Dr. David Wayne Seignious go to medical school?
Dr. Seignious graduated from Medical University of South Carolina College of Medicine in 1984.
Show 3 more questionsShow fewer questions
What drugs does Dr. David Wayne Seignious prescribe most?
In 2024 Medicare Part D data, Dr. Seignious' most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Losartan Potassium.
Has Dr. David Wayne Seignious received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Dr. Seignious from 1 company from 2016 to 2016. The largest total came from Symbrium Medical Technology, Inc.
How long has Dr. David Wayne Seignious been practicing?
Dr. Seignious graduated from medical school in 1984, 42 years ago.
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