NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Tien-Chun Chen, M.D., Inc.

Gastroenterology Physician in San Gabriel, CA · enumerated 2020 · authorized official Tien-Chun Chen, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1346876448

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Tien-Chun Chen, M.D., Inc.
Practice address 207 S Santa Anita St Ste P15, San Gabriel, CA, 91776
Phone (626) 898-4560
Fax (844) 407-0584
Enumeration date Mar 20, 2020
Last updated in NPPES Mar 20, 2020

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Primary
207RI0008X Hepatology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Tien-Chun Chen
Title President
Phone (626) 898-4560

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 → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Tien-Chun Chen, M.D., Inc.?
Tien-Chun Chen, M.D., Inc. is registered in NPPES as a Gastroenterology Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-20.