Doctor profile · Federal record
Dr. Ronan Hsieh, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Seattle, WA
- NPI 1457880031
- Accepts Medicare
- MIPS 87.0 / 100 · 2023
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1221 Madison St Fl 2
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 2017 — 9 yrs on file
- Profile last updated
- February 10, 2026
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Washington #MD61396701
- Medicaid
- WA #2252146
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457880031. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
21
Distinct HCPCS
1
Medicare allowed
$3,191
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 21 | 12 | $152 |
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
$2,057
Transactions
18
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 9 | $1,561.99 | |
| Pfizer INC. | 1 | $135.00 | |
| Daiichi Sankyo INC. | 2 | $130.17 | |
| Amgen INC. | 3 | $104.44 | |
| Tempus Ai, INC | 1 | $61.93 | |
| Takeda Pharmaceuticals U.S.A., INC. | 1 | $32.58 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $31.05 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
0
Total drug cost
$192
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Loperamide (Loperamide Hcl) | Brand | 11 | 0 | $192 |
Hospital affiliations
Frequently asked questions
What is Dr. Ronan Hsieh's medical specialty?
Dr. Ronan Hsieh practices Hematology & Oncology Physician in Seattle, WA.
Where does Dr. Ronan Hsieh practice?
Dr. Ronan Hsieh practices at 1221 Madison St Fl 2, Seattle, WA 981043588. Office phone: 2063862323.
What is Dr. Ronan Hsieh's NPI?
Dr. Ronan Hsieh's National Provider Identifier (NPI) is 1457880031, issued by NPPES.
Does Dr. Ronan Hsieh accept Medicare assignment?
Yes. Dr. Ronan Hsieh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronan Hsieh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.