Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tim B Osullivan, NP
Registered Nurse in Maumee, OH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538169792
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Registry record
Entity type Individual (Type 1)
Name Tim B Osullivan
Credential NP
Sex Male
Practice address 4444 Gregory Dr, Maumee, OH, 43537
Phone (419) 893-7606
Enumeration date Jul 28, 2005
Last updated in NPPES Mar 19, 2019
Taxonomy & licenses
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P00186819 | Other | OH | RRMC |
| 000000379377 | Other | OH | ANTHEM |
| 2346634 | Medicaid | OH | - |
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 Tim Osullivan?
The National Provider Identifier (NPI) for Tim Osullivan is 1538169792, a Type 1 (individual) record in the CMS NPPES registry.
Where does Tim Osullivan practice?
The practice location on file with NPPES is in Maumee, OH. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-19.