Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Krystian W Bigosinski, MD
Sports Medicine (Family Medicine) Physician in South Portland, ME · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245450832
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 036121017 | Other | IL | IL STATE MEDICAL LICENSE |
| ML20008426 | Other | WA | STATE MEDICAL LISCENCE |
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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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-29.