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GARRETT TIEN D.D.S.
NPI 1811296916
Dentist - General Practice in Hayward, CA

Active since March 15, 2011PECOS Enrolled
22331 MISSION BLVD, HAYWARD, CA 94541(510) 471-5880 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Garrett Tien D.d.s. NPPES

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

GARRETT TIEN D.D.S. (NPI 1811296916) is an individual general practice provider in Hayward, California, licensed in California (60220) and active in the NPI registry since March 2011. He is enrolled in Medicare PECOS and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1811296916
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameGARRETT TIENCredential: D.D.S.
Location Address22331 MISSION BLVDHayward, CA 94541-3911
Mailing Address22331 Mission BlvdHayward, CA 94541-3911 · (510) 471-5880
Phone(510) 471-5880
Sole ProprietorNo
Enumeration DateMarch 15, 2011
Last NPPES UpdateApril 8, 2026
NPPES CertifiedApril 8, 2026
✔ NPI 1811296916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in CA · 60220
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.
22331 MISSION BLVD, Hayward, CA 94541
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Secondary Practice Locations 4

Location 1680 W Tennyson Rd Rm 12Hayward, CA 94544-5236 · Phone (510) 471-5880
Location 228300 Huntwood AveHayward, CA 94544-5425 · Phone (510) 471-5880
Location 333255 9th StUnion City, CA 94587-2137 · Phone (510) 471-5880
Location 416110 E 14th StAshland, CA 94578-3002 · Phone (510) 471-5880

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Garrett Tien D.d.s. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94541 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

DR. EUNICE DIZON DDS
Dentist (General Practice)
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880
DR. MELISSA ROSE MD
Pediatrics
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880
TIBURCIO VASQUEZ HEALTH CENTER, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880
JASMINE SANCHEZ RIVAS
Dentist
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880
NATALIE RAMIREZ CNM
Advanced Practice Midwife
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880
GABRIELA MARIA CHICA
Nurse Practitioner (Pediatrics)
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5907
JESSICA PRICE FNP-C
Nurse Practitioner
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880
JACQUELINE JOYA B.S
Counselor
22331 MISSION BLVD
HAYWARD, CA 94541
Alameda County (510) 471-5880

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 Garrett Tien's NPI number?

The NPI number for Garrett Tien is 1811296916. It was assigned to this individual provider in the NPPES registry on March 15, 2011.

Where is Garrett Tien located?

Garrett Tien practices at 22331 Mission Blvd, Hayward, CA 94541. The listed phone number is (510) 471-5880.

What is Garrett Tien's specialty?

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

Is Garrett Tien enrolled in Medicare?

Yes. Garrett Tien is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Garrett Tien was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.