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

Brianna Elizabeth Grinnell, DO

Individual provider Family Medicine Physician · NPI 1235620378

Brianna Elizabeth Grinnell, DO is a Family Practice in Seattle, Washington. Graduated from Touro Un College of Osteopathic Medicine, Vallejo in 2018, 8 years ago. Practices with Swedish Health Services, a 384-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
8
Trained at
Touro Un College of Osteopathic Medicine, Vallejo
Licensed in
WA
In the registry since
2018
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4540 Union Bay Pl NE
Seattle, WA 98105-4025
Phone: (206) 320-8050
Fax: (206) 320-8048
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence OP61078848 (WA)

Record details

NPI number1235620378
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 24, 2018
Last updated in NPPESJanuary 13, 2022
Certification dateJanuary 13, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolTOURO UN COLLEGE OF OSTEOPATHIC MEDICINE, VALLEJO
Graduated 2018 (8 years in practice)
Group practice Swedish Health Services — 384 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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