Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Petr O Ruzicka, M.D.

Pediatric Surgery Physician in Mesa, AZ · enumerated 2006.

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

National Provider Identifier

1689611832

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Registry record

Entity type Individual (Type 1)

Name Dr. Petr O Ruzicka

Credential M.D.

Sex Male

Practice address 1432 S, Dobson, Suite 403, Mesa, AZ, 85202

Phone (480) 412-7400

Fax (480) 412-7500

Enumeration date May 31, 2006

Last updated in NPPES Mar 30, 2011

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers Secondary

2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License 41004 (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 Petr Ruzicka's NPI record?

Cross-check NPI 1689611832 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689611832 active?

Yes, as of the latest NPPES snapshot, NPI 1689611832 is active (record last updated 2011-03-30).

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John Udall Orthopaedic Surgery Physician · Mesa, AZ NPI 1649477357

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-30.