Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Oliver S. Ko, M.D.

Urology Physician in Litchfield Park, AZ · enumerated 2016 · practices at Arizona Hernia and Surgical Associates, LLC.

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

National Provider Identifier

1780046946

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Registry record

Entity type Individual (Type 1)

Name Oliver S. Ko

Credential M.D.

Sex Male

Practice address 14044 W Camelback Rd Ste 118, Litchfield Park, AZ, 85340

Phone (623) 547-2600

Fax (623) 547-1899

Enumeration date Mar 25, 2016

Last updated in NPPES Jul 5, 2023

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License A175833 (CA) Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 125.068359 (IL) Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 68414 (AZ) 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

How do I verify Oliver Ko's NPI record?

Cross-check NPI 1780046946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780046946 active?

Yes, as of the latest NPPES snapshot, NPI 1780046946 is active (record last updated 2023-07-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-05.