Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Chia-Su Chao, MD

Q: What is the NPI number for John Chao?

The National Provider Identifier (NPI) for John Chao is 1871792945, a Type 1 (individual) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Atlanta, GA · enumerated 2007.

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

National Provider Identifier

1871792945

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Registry record

Entity type Individual (Type 1)

Name John Chia-Su Chao

Credential MD

Sex Male

Practice address 5505 Peachtree Dunwoody Rd, Suite 600, Atlanta, GA, 30342

Phone (404) 355-0743

Fax (404) 355-2136

Enumeration date Jul 17, 2007

Last updated in NPPES Mar 2, 2026

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License P1974 (TX) Secondary

207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License P1974 (TX) Secondary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License P1974 (TX) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 69558 (GA) Primary

207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License P1974 (TX) Secondary

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 John Chao practice?

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

What is the NPI number for John Chao?

The National Provider Identifier (NPI) for John Chao is 1871792945, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-02.