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

Marissa Hahn, MD

Individual provider Emergency Medicine Physician · NPI 1831518489

Marissa Hahn, MD practises Emergency Medicine in Issaquah, Washington. Graduated from University of Washington School of Medicine in 2014, 12 years ago. Practices with Kaiser Foundation Health Plan of Washington, a 1,519-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
12
Trained at
University of Washington School of Medicine
Licensed in
WA
In the registry since
2014
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

751 NE Blakely Dr
Issaquah, WA 98029-6201
Phone: (425) 381-6173
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 300 Hospital Parkway, Mount Vernon, WA 98274 — (360) 424-4111
  • 325 9th Ave # Hmc, Seattle, WA 98104 — (206) 744-8334
  • 201 16th Ave E, Seattle, WA 98112-5226 — (206) 326-3000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 60757309 (WA)

Record details

NPI number1831518489
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2014
Last updated in NPPESApril 8, 2021
Certification dateApril 8, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesSPORTS MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Kaiser Foundation Health Plan Of Washington — 1519 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients20
Services billed 126 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Colleagues at Kaiser Foundation Health Plan of Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1519 clinicians in the practice; 12 are shown here.

Other providers in Issaquah