Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Keoni Nguyen, D.O.
Dermatology Physician in Mason, OH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831388198
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Keoni Nguyen
Credential D.O.
Sex Male
Practice address 4834 Socialville Foster Rd, Mason, OH, 45040
Phone (134) 591-9885
Fax (513) 459-1845
Enumeration date Oct 23, 2007
Last updated in NPPES Jan 22, 2025
Taxonomy & licenses
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 34.010172 (OH) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO 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
What is the NPI number for Keoni Nguyen?
The National Provider Identifier (NPI) for Keoni Nguyen is 1831388198, a Type 1 (individual) record in the CMS NPPES registry.
Where does Keoni Nguyen practice?
The practice location on file with NPPES is in Mason, OH. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → David Aichholz Obstetrics & Gynecology Physician · Mason, OH NPI 1881678787 Angeli Underiner Pediatrics Physician · Mason, OH NPI 1467422279 John Doscher Pediatrics Physician · Mason, OH NPI 1598735318 Paul Korn Pediatrics Physician · Mason, OH NPI 1811967466 Mitchell Internal Medicine, Inc. Internal Medicine Physician · Mason, OH NPI 1114957834 Gregory Davis General Practice Dentistry · Mason, OH NPI 1316960438 Gregory Hornung Dentist · Mason, OH NPI 1932113321 Landen Lake Pediatrics Primary Care Clinic/Center · Mason, OH NPI 1023029444
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-22.