Mark Aaron Williams

Mark Aaron Williams is a Case Manager/Care Coordinator provider (Case Manager/Care Coordinator) practicing in Choctaw, OK, registered in the NPPES registry with NPI 1780418483 since 2024.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1780418483
Entity type	Individual (Type 1)
Name	Mark Aaron Williams
Sex	Male
Practice address	Choctaw, OK, 73020
Phone	4053238214
Enumeration date	2024-08-27
Last updated in NPPES	2024-08-27

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
171M00000X	Case Manager/Care Coordinator	Primary	—	—

Copy-ready billing details

Provider: Mark Williams
NPI: 1780418483
Taxonomy: 171M00000X (Case Manager/Care Coordinator)
Address: Choctaw, OK, 73020

Verify this record

Cross-check NPI 1780418483 against the authoritative CMS record: view Mark Aaron Williams on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Mark Williams practice?

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

What is the NPI number for Mark Williams?

The National Provider Identifier (NPI) for Mark Williams is 1780418483, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-08-27.