Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Moses S. Nasser Jr., Do, Inc.

Addiction Medicine (Family Medicine) Physician in Upland, CA · enumerated 2026 · authorized official Moses Nasser, Ceo.

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

National Provider Identifier

1992631212

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Registry record

Entity type Organization (Type 2)

Legal business name Moses S. Nasser Jr., Do, Inc.

Practice address 1595 Bison St, Upland, CA, 91784

Phone (909) 206-4188

Enumeration date Jun 23, 2026

Last updated in NPPES Jun 23, 2026

Taxonomy & classification

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Moses Nasser

Title Ceo

Phone (909) 438-1170

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

Where is Moses S. Nasser Jr., Do, Inc. located?

The practice location on file with NPPES is in Upland, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-06-23. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-23.