David Seignious, M.D.
NPI 1891726287 · Internal Medicine Physician · Johns Island, SC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Seignious, M.D. is a Internal Medicine Physician provider in Johns Island, SC (NPI 1891726287).
Provider details
- NPI number
- 1891726287
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 13235 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
721 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 367 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 144 | $85 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 86 | $170 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 78 | $13 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 46 | $121 |
Typical Medicare-allowed amounts for these services range $13–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 142 | 48 |
| Atorvastatin Calcium | 109 | 43 |
| Losartan Potassium | 100 | 30 |
| Metformin Hcl | 78 | 31 |
| Simvastatin | 77 | 27 |
| Lisinopril | 74 | 26 |
| Levothyroxine Sodium | 63 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2012-04-10
Frequently asked questions
- What is David Seignious's NPI number?
- David Seignious's National Provider Identifier (NPI) is 1891726287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Seignious's specialty?
- David Seignious is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Seignious located?
- David Seignious's practice location on file with NPPES is 3312 Maybank Hwy, Johns Island, SC 29455-4818.
- What is David Seignious's phone number?
- The practice phone number listed in the NPPES registry for David Seignious is (843) 557-1111.
- Does David Seignious accept Medicare?
- David Seignious is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Seignious's NPI active?
- Yes — David Seignious's NPI (1891726287) is active in the NPPES registry as of the last update on 2012-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.