Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Nancy Carolyn O'Neal, M.D.
Surgery Physician in Medford, OR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669433991
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Registry record
Entity type Individual (Type 1)
Name Dr. Nancy Carolyn O'Neal
Credential M.D.
Sex Female
Practice address 3932 Southview Ter, Medford, OR, 97504
Phone (541) 261-1122
Enumeration date Mar 28, 2006
Last updated in NPPES Sep 27, 2021
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 |
|---|---|---|---|
| 4898020 | Other | OR | BLUE CROSS |
| 241576 | Medicaid | OR | - |
| 139572 | Other | OR | MEDICARE |
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
Is NPI 1669433991 active?
Yes, as of the latest NPPES snapshot, NPI 1669433991 is active (record last updated 2021-09-27).
How do I verify Nancy O'Neal's NPI record?
Cross-check NPI 1669433991 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-27.