Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Brian L O'Connor, MD
Contractor in Chandler, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366487928
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Registry record
Entity type Individual (Type 1)
Name Dr. Brian L O'Connor
Credential MD
Sex Male
Practice address 3232 E Bluebird Pl, Chandler, AZ, 85286
Phone (480) 556-1884
Enumeration date Jun 18, 2006
Last updated in NPPES Aug 13, 2013
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 5611435 | Medicaid | SD | - |
| 5611437 | Medicaid | SD | - |
| 5611430 | Medicaid | SD | - |
| 4994151 | Other | SD | WELLMARK |
| 5215 | Other | SD | DAKOTACARE |
| 5611436 | Medicaid | SD | - |
| 4994152 | Other | SD | WELLMARK |
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.
Frequently asked questions
How do I verify Brian O'Connor's NPI record?
Cross-check NPI 1366487928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1366487928 active?
Yes, as of the latest NPPES snapshot, NPI 1366487928 is active (record last updated 2013-08-13).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-13.