Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
P. Douglas Callan & Assoc Ltd
Clinical Psychologist in Fenton, MI · enumerated 2007 · authorized official Paul Callan, Psychologist.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124233549
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2050633 | Other | MI | CIGNA |
| 117163 | Other | MI | VALUE OPTIONS |
| 680B54550-0 | Other | MI | BLUE CROSS |
| 38741455 | Other | MI | TRICARE |
| IP285944 | Other | MI | MAGELLAN |
| P99889 | Other | MI | BLUE CARE NETWORK |
| 8915160 | Other | MI | CIGNA |
| M036569 | Other | MI | CHAMPUS |
| 248189 | Other | MI | MHN |
| 266552 | Other | MI | HORIZON |
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
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Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-14.