Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Augustine Mark Saiz Jr., M.D.

Orthopaedic Trauma Physician in Sacramento, CA · enumerated 2015.

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

National Provider Identifier

1538540026

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Registry record

Entity type Individual (Type 1)

Name Dr. Augustine Mark Saiz Jr.

Credential M.D.

Sex Male

Practice address 4860 Y St Ste 1700, Sacramento, CA, 95817

Phone (916) 734-2700

Fax (916) 734-7137

Enumeration date Jun 10, 2015

Last updated in NPPES Sep 30, 2022

Taxonomy & licenses

207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License A146890 (CA) Primary

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

What specialty is Augustine Saiz?

Augustine Saiz is registered in NPPES with the primary taxonomy of Orthopaedic Trauma Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-30.