Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joseph Oh, MD
Urology Physician in Winfield, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225086663
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Registry record
Entity type Individual (Type 1)
Name Dr. Joseph Oh
Credential MD
Sex Male
Practice address 25 N Winfield Rd, Ste 405, Winfield, IL, 60190
Phone (630) 790-1221
Enumeration date May 5, 2006
Last updated in NPPES Jan 27, 2011
Taxonomy & licenses
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.
Frequently asked questions
Where does Joseph Oh practice?
The practice location on file with NPPES is in Winfield, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Oh?
The National Provider Identifier (NPI) for Joseph Oh is 1225086663, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Nicolai Hinds Obstetrics & Gynecology Physician · Winfield, IL NPI 1124024161 Teresa Smith Family Nurse Practitioner · Winfield, IL NPI 1861499899 Luis Torero Pediatric Pulmonology Physician · Winfield, IL NPI 1952399560 David Woodard Surgery Physician · Winfield, IL NPI 1447231782 James Carroll Cardiovascular Disease Physician · Winfield, IL NPI 1841272432 Michael Hussey Maternal & Fetal Medicine Physician · Winfield, IL NPI 1053395384 Neil Agruss Cardiovascular Disease Physician · Winfield, IL NPI 1780661736 Associated General Surgeons, S.C. Surgery Physician · Winfield, IL NPI 1174501266
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-27.