Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Jay David Karol, DDS
Dentist in Hammond, IN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922178540
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Registry record
Entity type Individual (Type 1)
Name Dr. Jay David Karol
Credential DDS
Sex Male
Practice address 7134 Calumet Ave, Hammond, IN, 46324
Phone (219) 932-0434
Enumeration date Nov 9, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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 Jay Karol?
The National Provider Identifier (NPI) for Jay Karol is 1922178540, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jay Karol practice?
The practice location on file with NPPES is in Hammond, IN. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Evan H. Geissler, D.O., Ltd. Family Medicine Physician · Hammond, IN NPI 1477659449 Gina Geissler Audiologist · Hammond, IN NPI 1972647535 Evan Geissler Family Medicine Physician · Hammond, IN NPI 1578781845 Lisa Spudic Family Nurse Practitioner · Hammond, IN NPI 1649462797 Gregory Fragakis Audiologist · Hammond, IN NPI 1033354972 Brian Waldman Audiologist · Hammond, IN NPI 1184071995 Jay D Karol DDS Dentist · Hammond, IN NPI 1114481249
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.