Internal Medicine, Hematology & Oncology
SARA GRETHLEIN MD
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1326083445 · enumerated 2006-06-20 · record updated 2021-11-09. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Other names: SARA FRIEDMAN
Addresses and phones
- Practice location 1221 MADISON ST, 2ND FL, SEATTLE, WA, 98104-3588 (206) 386-2323 Fax (206) 215-6165 Google Maps Apple Maps OpenStreetMap
- Mailing address PO BOX 25608, SALT LAKE CITY, UT, 84125-0608 (206) 320-4476 Fax (206) 568-7043 Google Maps Apple Maps OpenStreetMap
Specialties
- Internal Medicine, Medical Oncology 207RX0202X · License MD61107310 WA
- Internal Medicine, Hematology & Oncology 207RH0003X · Primary · License MD61107310 WA
In this directory
WA King County Seattle Internal Medicine, Hematology & Oncology
Locations and evidence
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Practice location
SEATTLE, WA, 981043588
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.