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DAVID W SEIGNIOUS MD LLC
NPI 1790996098
Internal Medicine in Johns Island, SC

Active since May 25, 2007CLIA 42D1015043 · Waiver
3312 MAYBANK HWY, SUITE A, JOHNS ISLAND, SC 29455(843) 557-1111(843) 557-1050 Get Directions Write a Review

NPPES record last updated: April 10, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About David W Seignious Md Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID W SEIGNIOUS MD LLC (NPI 1790996098) is a healthcare organization registered as an internal medicine in Johns Island, South Carolina and active in the NPI registry since May 2007. The organization holds a CLIA Waiver certificate valid through July 21, 2027 and lists David Seignious, Owner, as its authorized official.

NPPES Registry Identity

NPI1790996098
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameDAVID W SEIGNIOUS MD LLC
Location Address3312 MAYBANK HWY, SUITE AJohns Island, SC 29455-4818
Mailing Address3312 Maybank Hwy, Suite AJohns Island, SC 29455-4818 · (843) 557-1111 · Fax (843) 557-1050
Phone(843) 557-1111
Fax(843) 557-1050
Organization SubpartNo
Authorized OfficialDavid SeigniousOwner · (843) 557-1111
Enumeration DateMay 25, 2007
Last NPPES UpdateApril 10, 2012
✔ NPI 1790996098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in SC · 13235
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3312 MAYBANK HWY, Johns Island, SC 29455
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Other Identifiers 2

Medicare ID-Type UnspecifiedB920757666SC · Medicare
Medicare UPINB92075SC

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of South Carolina.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 42D1015043

David Seignious MD LLC · Johns Island, SC
Active · expires Jul 21, 2027
CLIA Number42D1015043
Laboratory TypePhysician Office
Certificate Effective DateJuly 22, 2025
Certificate Expiration DateJuly 21, 2027
Laboratory DirectorDavid W. Seignious MD
Laboratory Phone(843) 557-1111
Laboratory LocationDavid Seignious MD LLC3312 Maybank Higway, Suite A, Johns Island, SC 29455
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NATALIE EMANUEL N.P.
Nurse Practitioner
3312 MAYBANK HWY, SUITE A
JOHNS ISLAND, SC 29455
Charleston County (843) 557-1111
DAVID SEIGNIOUS M.D.
Internal Medicine
3312 MAYBANK HWY, SUITE A
JOHNS ISLAND, SC 29455
Charleston County (843) 557-1111

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David W Seignious MD LLC's NPI number?

The NPI number for David W Seignious MD LLC is 1790996098. It was assigned to this organization in the NPPES registry on May 25, 2007.

Where is David W Seignious MD LLC located?

David W Seignious MD LLC is located at 3312 Maybank Hwy Suite A, Johns Island, SC 29455. The listed phone number is (843) 557-1111.

What is David W Seignious MD LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does David W Seignious MD LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 42D1015043) is associated with this NPI, valid through July 21, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does David W Seignious MD LLC accept?

Health plans from BlueCross BlueShield of South Carolina list David W Seignious MD LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for David W Seignious MD LLC was last updated on April 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.