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DR. GREGORY JAMES WILLIAMS DDS
NPI 1174619266
Dentist in Estherville, IA

Active since October 05, 2006
326 W CENTRAL AVE, ESTHERVILLE, IA 51334(712) 362-4449(712) 362-5313 Get Directions Write a Review

NPPES record last updated: May 13, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gregory James Williams Dds NPPES

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

DR. GREGORY JAMES WILLIAMS DDS (NPI 1174619266) is an individual dentist in Estherville, Iowa, licensed in Iowa (08343) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1174619266
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. GREGORY JAMES WILLIAMSCredential: DDS
Location Address326 W CENTRAL AVEEstherville, IA 51334
Mailing Address326 W Central AveEstherville, IA 51334-1827 · (712) 362-4449 · Fax (712) 362-5313
Phone(712) 362-4449
Fax(712) 362-5313
Sole ProprietorYes
Enumeration DateOctober 5, 2006
Last NPPES UpdateMay 13, 2025
NPPES CertifiedMay 6, 2025
✔ NPI 1174619266 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in IA · 08343
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
326 W CENTRAL AVE, Estherville, IA 51334
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

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 Gregory Williams's NPI number?

The NPI number for Gregory Williams is 1174619266. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Where is Gregory Williams located?

Gregory Williams practices at 326 W Central Ave, Estherville, IA 51334. The listed phone number is (712) 362-4449.

What is Gregory Williams's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

What insurance does Gregory Williams accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 11 other insurers list Gregory Williams 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 Gregory Williams was last updated on May 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.