Doctor profile · Federal record
Dr. Sara Grethlein, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Medical Oncology Physician · Seattle, WA
- NPI 1326083445
- MIPS 82.8 / 100 · 2023
- 38 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1221 Madison St, 2Nd Fl
Seattle, WA 981043588
(206) 386-2323
fax (206) 215-6165 - Mailing address
-
Po Box 25608
Salt Lake City, UT 841250608
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 9, 2021
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Washington #MD61107310
- Medicaid (2)
- NY #01498439 · IN #201177200
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326083445. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
23
Distinct HCPCS
1
Medicare allowed
$2,256
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 23 | 14 | $98 |
In context: peer comparison
Among 60 peers in Seattle Hematology & Oncology Physician, average services per provider: 225. This provider delivers 0.1× the peer median.Open Payments
Industry payments received
All-time total
$132
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 1 | $131.57 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
38
Patients
0
Total drug cost
$654,780
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tagrisso (Osimertinib Mesylate) | Brand | 38 | 0 | $654,780 |
Hospital affiliations
Frequently asked questions
What is Dr. Sara Grethlein's medical specialty?
Dr. Sara Grethlein practices Hematology & Oncology Physician in Seattle, WA.
Where does Dr. Sara Grethlein practice?
Dr. Sara Grethlein practices at 1221 Madison St, Seattle, WA 981043588. Office phone: 2063862323.
What is Dr. Sara Grethlein's NPI?
Dr. Sara Grethlein's National Provider Identifier (NPI) is 1326083445, issued by NPPES.
Does Dr. Sara Grethlein accept Medicare assignment?
Dr. Sara Grethlein does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Sara Grethlein commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.