Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lawrence Chang, MD

Student in an Organized Health Care Education/Training Program in Sonora, CA · enumerated 2026 · practices at Sonora Community Hospital.

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

National Provider Identifier

1174462105

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Registry record

Entity type Individual (Type 1)

Name Dr. Lawrence Chang

Credential MD

Sex Male

Practice address 193 Fairview Ln, Sonora, CA, 95370

Phone (209) 536-5192

Enumeration date Mar 26, 2026

Last updated in NPPES Mar 26, 2026

Taxonomy & licenses

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

Where does Lawrence Chang practice?

The practice location on file with NPPES is in Sonora, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Lawrence Chang?

The National Provider Identifier (NPI) for Lawrence Chang is 1174462105, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-26.