Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brian Jin So, M.D.

Gastroenterology Physician in Texarkana, TX · enumerated 2007.

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

National Provider Identifier

1841499100

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Registry record

Entity type Individual (Type 1)

Name Dr. Brian Jin So

Credential M.D.

Sex Male

Practice address 1920 Moores Lane, Texarkana, TX, 75503

Phone (903) 792-8030

Fax (903) 793-0844

Enumeration date Jul 16, 2007

Last updated in NPPES Mar 12, 2014

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 35-094574 (OH) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License P8543 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Brian So's NPI record?

Cross-check NPI 1841499100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1841499100 active?

Yes, as of the latest NPPES snapshot, NPI 1841499100 is active (record last updated 2014-03-12).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-12.