Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MASON WESTON WELCH DDS
NPI 1710745757
Dentist - Pediatric Dentistry in Mesa, AZ

Q: What is Mason Welch's NPI number?

The NPI number for Mason Welch is 1710745757. It was assigned to this individual provider in the NPPES registry on March 12, 2024.

Q: What is Mason Welch's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Pediatric Dentistry, with taxonomy code 1223P0221X.

Q: When was this NPI record last updated?

The NPPES record for Mason Welch was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 12, 2024

9101 E BROWN RD STE 102, MESA, AZ 85207(480) 565-8555 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 30, 2026, Jul 16, 2026, May 28, 2026 (3 updates tracked since 2026).

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About Mason Weston Welch Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MASON WESTON WELCH DDS (NPI 1710745757) is an individual pediatric dentistry provider in Mesa, Arizona, licensed in Arizona (D012291) and active in the NPI registry since March 2024.

NPPES Registry Identity

NPI1710745757

Entity TypeIndividualMale

Primary Taxonomy1223P0221X

Provider Legal NameMASON WESTON WELCHCredential: DDS

Location Address9101 E BROWN RD STE 102Mesa, AZ 85207-4351

Mailing Address20606 E Avenida Del ValleQueen Creek, AZ 85142-0229 · (480) 459-0415

Phone(480) 565-8555

Sole ProprietorYes

Enumeration DateMarch 12, 2024

Last NPPES UpdateSeptember 30, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 30, 2026

✔ NPI 1710745757 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · Pediatric DentistryDental Providers

Taxonomy Code1223P0221X

License✔ Licensed in AZ · D012291

Definition

An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs.

9101 E BROWN RD STE 102, Mesa, AZ 85207

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, BEST Life, Blue Cross and Blue Shield of Montana and more.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. AARON EDGAR BUYACK DMD

Dentist (Pediatric Dentistry)

9101 E BROWN RD STE 102
MESA, AZ 85207

Maricopa County (480) 565-8555

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mason Welch's NPI number?

The NPI number for Mason Welch is 1710745757. It was assigned to this individual provider in the NPPES registry on March 12, 2024.

Where is Mason Welch located?

Mason Welch practices at 9101 E Brown Rd Ste 102, Mesa, AZ 85207. The listed phone number is (480) 565-8555.

What is Mason Welch's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Pediatric Dentistry, with taxonomy code 1223P0221X.

What insurance does Mason Welch accept?

Health plans from Ambetter from Arizona Complete Health, BEST Life, Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 10 other insurers list Mason Welch as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mason Welch was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.