1. Home
  2. Directory
  3. Arizona
  4. Snowflake
  5. Dentist
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GERMAN ANTONIO SIERRA DDS
NPI 1255396313
Dentist - General Practice in Snowflake, AZ

Active since April 19, 2006
155 W CENTER ST, SNOWFLAKE, AZ 85937(928) 536-7158(928) 536-2640 Get Directions Write a Review

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

About Dr. German Antonio Sierra Dds NPPES

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

DR. GERMAN ANTONIO SIERRA DDS (NPI 1255396313) is an individual general practice provider in Snowflake, Arizona, licensed in Arizona (4607) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1255396313
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. GERMAN ANTONIO SIERRACredential: DDS
Location Address155 W CENTER STSnowflake, AZ 85937-5211
Mailing AddressPo Box 780Snowflake, AZ 85937-0780 · (928) 536-7158 · Fax (928) 536-2640
Phone(928) 536-7158
Fax(928) 536-2640
Sole ProprietorNo
Enumeration DateApril 19, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1255396313 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in AZ · 4607
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
155 W CENTER ST, Snowflake, AZ 85937
Open in Google Maps ↗

Other Identifiers 4

Other110375Premier Access
Other4607Delta Dental
OtherAZ0489570Bcbs
OtherUC991320United Concordia

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

Other Providers at the Same Location NPPES 3

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

SIERRA DENTAL, P.C.
Dentist
155 W CENTER ST
SNOWFLAKE, AZ 85937
Navajo County (928) 536-7158
TAYLOR HUNT DMD
Dentist
155 W CENTER ST
SNOWFLAKE, AZ 85937
Navajo County (928) 536-7158
TAYLOR HUNT DMD PLLC
Clinic/Center (Dental)
155 W CENTER ST
SNOWFLAKE, AZ 85937
Navajo County (928) 536-7158

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 German Sierra's NPI number?

The NPI number for German Sierra is 1255396313. It was assigned to this individual provider in the NPPES registry on April 19, 2006.

Where is German Sierra located?

German Sierra practices at 155 W Center St, Snowflake, AZ 85937. The listed phone number is (928) 536-7158.

What is German Sierra's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does German Sierra accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Guardian list German Sierra 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 German Sierra was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.