Mark D. Williams, MD

Mark D. Williams is a Surgery Physician provider (Surgery) practicing in Payson, AZ, registered in the NPPES registry with NPI 1629143144 since 2006. The credential MD stands for Doctor of Medicine.

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NPI	1629143144
Entity type	Individual (Type 1)
Name	Mark D. Williams
Credential	MD
Sex	Male
Practice address	803 S PONDEROSA ST, SUITE C, Payson, AZ, 85541
Phone	9284721222
Fax	9284721213
Enumeration date	2006-11-21
Last updated in NPPES	2015-05-22

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
208600000X	Surgery Physician	Primary	29945	AZ
2086S0127X	Trauma Surgery Physician	Secondary	29945	AZ
208600000X	Surgery Physician	Secondary	G88791	CA

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

Other identifiers

Identifier	Type	State	Issuer
646490	Medicaid	AZ	—

Copy-ready billing details

Provider: Mark Williams, MD
NPI: 1629143144
Taxonomy: 208600000X (Surgery Physician)
Address: 803 S PONDEROSA ST, SUITE C, Payson, AZ, 85541

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1942427679	Katharine Raymer	Individual	Surgery Physician	Payson, AZ

Verify this record

Cross-check NPI 1629143144 against the authoritative CMS record: view Mark D. 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

What is the NPI number for Mark Williams?

The National Provider Identifier (NPI) for Mark Williams is 1629143144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Williams practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-05-22.