Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Carl Simkevich, DMD
Oral and Maxillofacial Surgery (Dentist) in East Greenwich, RI · enumerated 2006 · practices at John S. Kacewicz, D.M.D..
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1093746539
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 145484 | Other | RI | UNITED HEALTH SENIOR-PAWT |
| 5657159 | Other | RI | AETNA |
| 8447-5 | Other | RI | BLUE CROSS-COV |
| 3068099 | Other | RI | AETNA HMO EG |
| 3068101 | Other | RI | AETNA HMO- COV |
| 2001655 | Other | RI | DELTA DENTAL -PAWT |
| 5001655 | Other | RI | DELTA DENTAL-COV |
| 8000056 | Other | RI | UNITED HEALTH-EG |
| 8356-2 | Other | RI | BLUE CROSS-PAWT |
| 8442-0 | Other | RI | BLUE CROSS-EG |
| 145483 | Other | RI | UNITED SENIOR-EG |
| 8000057 | Other | RI | UNITED HEALTH-COV |
| 8000075 | Other | RI | UNITED HEALTH-PAWT |
| 3068102 | Other | RI | AETNA-HMO |
| 4001655 | Other | RI | DELTA DENTAL -EG |
| 145482 | Other | RI | UNITED SENIOR-COV |
| 201298 | Other | RI | BLUE CHIP |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-05.