Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Nathan Mercer, MD

Individual provider Hospitalist Physician · NPI 1497255178

Dr. Nathan Mercer, MD is a Hospitalist in Seattle, Washington. Graduated from University of Toledo College of Medicine in 2018, 8 years ago. Practices with Virginia Mason Medical Center, a 867-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Virginia and Washington.

Years since qualifying
8
Trained at
University of Toledo College of Medicine
Licensed in
VA, WA
In the registry since
2018
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

925 Seneca St
Seattle, WA 98101-2742
Phone: (206) 625-7373
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9040 Jackson Ave, Joint Base Lewis McChord, WA 98431-0001 — (253) 968-2462

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD61552788 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0101267697 (VA)

Record details

NPI number1497255178
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 19, 2018
Last updated in NPPESAugust 7, 2025
Certification dateAugust 7, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolUNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Virginia Mason Medical Center — 867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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