1. Home
  2. Directory
  3. South Carolina
  4. Charleston
  5. Pediatrics
  6. NPI Profile

SEAN LOUDIN MD
NPI 1770797839
Pediatrics - Neonatal-Perinatal Medicine in Charleston, SC

Active since May 09, 2007PECOS Enrolled
316 CALHOUN ST, CHARLESTON, SC 29401(843) 402-1638(843) 724-2455 Get Directions Write a Review

NPPES record last updated: February 26, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Sean Loudin Md NPPES

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

SEAN LOUDIN MD (NPI 1770797839) is an individual neonatal-perinatal medicine provider in Charleston, South Carolina, licensed in South Carolina (31205) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770797839
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameSEAN LOUDINCredential: MD
Location Address316 CALHOUN STCharleston, SC 29401-1113
Mailing AddressPo Box 751649Charlotte, NC 28275-1649 · (843) 789-1620 · Fax (843) 724-2440
Phone(843) 402-1638
Fax(843) 724-2455
Sole ProprietorNo
Enumeration DateMay 9, 2007
Last NPPES UpdateFebruary 26, 2021
NPPES CertifiedFebruary 26, 2021
✔ NPI 1770797839 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in SC · 31205
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License 31205 (SC)
316 CALHOUN ST, Charleston, SC 29401
Open in Google Maps ↗

Other Identifiers 1

Medicaid312058SC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include First Choice Next, Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sean Loudin Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Sean Loudin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Roper Saint Francis Physicians Network
Same address
Internal Medicine
316 CALHOUN ST
Charleston, SC 29401
  • Reassigned Medicare billing, South Carolina enrollment
  • 658 clinicians in this Medicare group
NPI 1013158187 (843) 724-2450
Roper St. Francis Specialty Physicians
16 mi
Surgery
8536 PALMETTO COMMERCE PKWY STE 501
Ladson, SC 29456
  • Reassigned Medicare billing, South Carolina enrollment
  • 296 clinicians in this Medicare group
NPI 1528945912 (843) 203-2260

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

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

CHRISTIAN ANTON SUNG PA-C
Physician Assistant
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 720-8490
AMY LYNN CANINO PA-C
Physician Assistant
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 402-1638
KAREN L SPODAREK D.O.
Radiology (Diagnostic Radiology)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2154
JOHNNY PHILLIPS CAMPBELL MD
Radiology (Diagnostic Radiology)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2988
RONA S CUSHMAN NNP
Nurse Practitioner (Neonatal, Critical Care)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 402-1638
ROPER SAINT FRANCIS PHYSICIANS NETWORK
Internal Medicine
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2450
MRS. ALISON MARIE BONDELL APRN
Nurse Practitioner (Acute Care)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2450
MRS. DEBORAH LYNN WALKER AGACNP-BC
Nurse Practitioner (Acute Care)
316 CALHOUN ST
CHARLESTON, SC 29401
Charleston County (843) 724-2450

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 Sean Loudin's NPI number?

The NPI number for Sean Loudin is 1770797839. It was assigned to this individual provider in the NPPES registry on May 9, 2007.

Where is Sean Loudin located?

Sean Loudin practices at 316 Calhoun St, Charleston, SC 29401. The listed phone number is (843) 402-1638.

What is Sean Loudin's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Sean Loudin enrolled in Medicare?

Yes. Sean Loudin is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sean Loudin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Loudin reassigns Medicare benefits to 2 organizations: Roper Saint Francis Physicians Network (Charleston, SC) and Roper St. Francis Specialty Physicians (Ladson, SC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sean Loudin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sean Loudin accept?

Health plans from First Choice Next and Oscar Health Plan, Inc. list Sean Loudin 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 Sean Loudin was last updated on February 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.