Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William E Berg, M.D.
Neurology Physician in Seattle, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568461507
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Registry record
Entity type Individual (Type 1)
Name William E Berg
Credential M.D.
Sex Male
Practice address 515 Minor Ave, #210, Seattle, WA, 98104
Phone (206) 386-9500
Fax (206) 386-9605
Enumeration date Jul 20, 2005
Last updated in NPPES Oct 19, 2021
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD00038474 (WA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8252538 | Medicaid | WA | - |
| 137545 | Other | WA | LABOR & INDUSTRY |
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 William Berg 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 William Berg?
The National Provider Identifier (NPI) for William Berg is 1568461507, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-19.