Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra Siatkowski, MD

Pediatrics Physician in Orangeburg, SC · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144802216

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Registry record

Entity type Individual (Type 1)

Name Sandra Siatkowski

Credential MD

Sex Female

Practice address 1995 Saint Matthews Rd, Orangeburg, SC, 29118

Phone (803) 928-5525

Enumeration date Apr 27, 2021

Last updated in NPPES Jun 24, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License TRN32947 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Sandra Siatkowski?

The National Provider Identifier (NPI) for Sandra Siatkowski is 1144802216, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sandra Siatkowski practice?

The practice location on file with NPPES is in Orangeburg, SC. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-24.