Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander L Bertelsen, PAC
Physician Assistant in Seattle, WA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912020405
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Alexander L Bertelsen
Credential PAC
Sex Male
Practice address 1959 Ne Pacific St, Seattle, WA, 98195
Phone (206) 543-3690
Enumeration date Apr 9, 2007
Last updated in NPPES May 30, 2008
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA10004919 (WA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P00466583 | Other | WA | RAILROAD MEDICARE |
| 8443269 | Medicaid | WA | - |
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
Where does Alexander Bertelsen practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alexander Bertelsen?
The National Provider Identifier (NPI) for Alexander Bertelsen is 1912020405, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → David Bolus Diagnostic Radiology Physician · Seattle, WA NPI 1104823491 Sammy Chu Diagnostic Radiology Physician · Seattle, WA NPI 1972502656 Annie Fang Internal Medicine Physician · Seattle, WA NPI 1679572168 John Kern Psychiatry Physician · Seattle, WA NPI 1083615454 Barbara Bjeletich Critical Care Medicine Nurse Practitioner · Seattle, WA NPI 1669465027 Thomas Grabowski Neurology Physician · Seattle, WA NPI 1033104252 Peter Nelson Nephrology Physician · Seattle, WA NPI 1164417119 Mark Cain Pediatric Urology Physician · Seattle, WA NPI 1912993320
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-30.