Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Gerald John Alexander, M.D.

Orthopaedic Surgery of the Spine Physician in Orange, CA · enumerated 2006.

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

National Provider Identifier

1790721025

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Registry record

Entity type Individual (Type 1)

Name Gerald John Alexander

Credential M.D.

Sex Male

Practice address Orange, CA, 92868

Phone (714) 634-4567

Enumeration date Jun 22, 2006

Last updated in NPPES Mar 17, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G81353 (CA) Secondary

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License G81353 (CA) 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.

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Frequently asked questions

Is NPI 1790721025 active?

Yes, as of the latest NPPES snapshot, NPI 1790721025 is active (record last updated 2018-03-17).

How do I verify Gerald Alexander's NPI record?

Cross-check NPI 1790721025 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.