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- 1221 Madison St, 2Nd Fl, Seattle, WA 98104
About Dr. Grethlein
Sara J. Grethlein, MD practices hematology/oncology in Seattle, WA. Sara is also listed as specializing in medical oncology and hematology & oncology. The provider's National Provider Identifier (NPI) is 1326083445.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (206) 386-2323
- Email not available
Practice Locations
1221 MADISON ST 2ND FL
Seattle, WA 98104
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other hematology/oncology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other hematology/oncology specialists in Seattle 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Grethlein's specialty?
Dr. Grethlein is a hematology/oncology in Seattle, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Grethlein?
Dr. Grethlein is listed at 1221 Madison St 2Nd Fl, Seattle, WA 98104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Grethlein?
The number on file is (206) 386-2323. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Grethlein?
Dr. Grethlein's National Provider Identifier is 1326083445. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Grethlein's medical education?
Dr. Grethlein attended Other, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Grethlein have?
Dr. Grethlein has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Grethlein's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grethlein. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.