Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Birte Johanna Wolff, MD
Gynecology Physician in Seattle, WA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194091074
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Registry record
Entity type Individual (Type 1)
Name Dr. Birte Johanna Wolff
Credential MD
Sex Female
Practice address 600 Broadway, Ste 400, Seattle, WA, 98122
Phone (206) 215-9071
Fax (206) 710-9016
Enumeration date Mar 26, 2012
Last updated in NPPES Feb 25, 2022
Taxonomy & licenses
207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License MD61224103 (WA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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 specialty is Birte Wolff?
Birte Wolff is registered in NPPES with the primary taxonomy of Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-25.