NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Leslie Witkowski, DO

Surgery Physician in Murrells Inlet, SC · enumerated 2011.

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

National Provider Identifier

1982998100

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mark Leslie Witkowski
Credential DO
Sex Male
Practice address 4040 Highway 17, Suite 202, Murrells Inlet, SC, 29576
Fax (843) 652-8391
Enumeration date Jun 6, 2011
Last updated in NPPES Dec 3, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License R9182 (IA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

How do I verify Mark Witkowski's NPI record?
Cross-check NPI 1982998100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1982998100 active?
Yes, as of the latest NPPES snapshot, NPI 1982998100 is active (record last updated 2025-12-03).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-03.