Doctor profile · Federal record
Dr. William Matsui, M.D.
Medical Oncology Physician (CMS: Hematology/Oncology) · Baltimore, MD
- NPI 1568411049
- Accepts Medicare
- MIPS 71.5 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
600 N Wolfe St
Baltimore, MD 212870005
(410) 933-7400 - Mailing address
-
Po Box 64474
Baltimore, MD 212644474
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- February 12, 2013
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Maryland #D53335
- Medicaid
- MD #409100100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1568411049. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
89
Distinct HCPCS
3
Medicare allowed
$11,389
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 57 | 23 | $119 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 20 | 20 | $211 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 12 | 12 | $32 |
In context: peer comparison
Among 37 peers in Baltimore Medical Oncology Physician, average services per provider: 1,726. This provider delivers 0.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
92
Patients
0
Total drug cost
$1,604,649
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pomalyst (Pomalidomide) | Brand | 45 | 0 | $837,792 |
| Lenalidomide | Generic | 28 | 0 | $404,104 |
| Revlimid (Lenalidomide) | Brand | 19 | 0 | $362,753 |
Frequently asked questions
What is Dr. William Matsui's medical specialty?
Dr. William Matsui practices Medical Oncology Physician in Baltimore, MD.
Where does Dr. William Matsui practice?
Dr. William Matsui practices at 600 N Wolfe St, Baltimore, MD 212870005. Office phone: 4109337400.
What is Dr. William Matsui's NPI?
Dr. William Matsui's National Provider Identifier (NPI) is 1568411049, issued by NPPES.
Does Dr. William Matsui accept Medicare assignment?
Yes. Dr. William Matsui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Matsui commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.