Individual provider · Type 1 NPI

Sara Jo Grethlein, MD

Hematology & Oncology Physician · Seattle, WA

NPI number 1326083445 Active

Practice location

1221 Madison St, 2nd Fl
Seattle, WA 98104-3588

Call (206) 386-2323 Map

Fax (206) 215-6165

Mailing address

PO Box 25608
Salt Lake City, UT 84125-0608

Other practice locations

  • 1013 E. Edison Ave, Sunnyside, WA 98944 · (509) 837-1587

Specialties and licenses

TaxonomyCodeLicense
Hematology & Oncology Physician Primary 207RH0003XMD.MD.61107310 (WA)
Medical Oncology Physician 207RX0202XMD.MD.61107310 (WA)

Hematology & Oncology Physician: An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

60 other providers at this address

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About NPI 1326083445

Sara Jo Grethlein, MD's National Provider Identifier is 1326083445, issued on Jun 20, 2006. The primary taxonomy on file is Hematology & Oncology Physician (207RH0003X), and the practice location is in Seattle, WA. The record was last updated on Oct 16, 2026.