Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Semra Olgac, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1578543419

Semra Olgac, MD practises Pathology in Seattle, Washington. Qualified in 1991, 35 years ago. Practices with Virginia Mason Medical Center, a 867-clinician group and accepts Medicare assignment. Licensed in New York and Washington.

Years since qualifying
35
Licensed in
NY, WA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1100 9th Ave
Seattle, WA 98101-2756 Not confirmed with CMS for 11 years — call before visiting
Phone: (206) 223-6600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence MD00046810 (WA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 218991 (NY)

Record details

NPI number1578543419
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 18, 2006
Last updated in NPPESApril 14, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Virginia Mason Medical Center — 867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients555
Services billed 1,629 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Virginia Mason Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 867 clinicians in the practice; 12 are shown here.

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