Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Mustain, PH. D.

Audiologist in Jackson, MS · enumerated 2008.

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

National Provider Identifier

1114198181

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Registry record

Entity type Individual (Type 1)

Name Dr. William Mustain

Credential PH. D.

Sex Male

Practice address 2500 N State St, Dept of Oto & Comm Sciences, Jackson, MS, 39216

Phone (601) 984-5160

Enumeration date Mar 18, 2008

Last updated in NPPES Feb 12, 2015

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License A0143 (MS) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
00770092	Medicaid	MS	-
P01402399	Other	MS	RR MEDICARE

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

Is NPI 1114198181 active?

Yes, as of the latest NPPES snapshot, NPI 1114198181 is active (record last updated 2015-02-12).

How do I verify William Mustain's NPI record?

Cross-check NPI 1114198181 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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University Ophthalmology Associates Ophthalmology Physician · Jackson, MS NPI 1477556231 George Russell Orthopaedic Trauma Physician · Jackson, MS NPI 1629072509 Lori Reed Orthopaedic Foot and Ankle Surgery Physician · Jackson, MS NPI 1285639955 Brian Crabtree Psychiatric Pharmacist · Jackson, MS NPI 1770580961 Jack Lewin Anatomic Pathology Physician · Jackson, MS NPI 1033117445 Robin Christian Family Nurse Practitioner · Jackson, MS NPI 1245230887 John Bethea Anesthesiology Physician · Jackson, MS NPI 1568462141 Linda Brodell Ophthalmology Physician · Jackson, MS NPI 1043210321

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-12.