Doctor profile · Federal record
Dr. Timothy Chen, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Diagnostic Radiology Physician · Diagnostic Radiology Physician · Diagnostic Radiology Physician · Gaithersburg, MD
- NPI 1578893947
- Accepts Medicare
- 21 yrs in practice
- Licensed in 5 states
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
655 Watkins Mill RD, Radiology Department
Gaithersburg, MD 208793301
(301) 848-5786
Credentials & registration
- NPI registered
- January 2010 — 16 yrs on file
- Profile last updated
- February 8, 2022
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State licenses (5)
- Georgia #89546 · Illinois #036.136790 · New Jersey #25MA08479200 · Maryland #D74221 · New York #256404
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578893947. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,539
Distinct HCPCS
6
Medicare allowed
$10,491
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 1,455 | 15 | $0 | |
71046 |
X-ray of chest, 2 views | 34 | 33 | $38 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 15 | 15 | $363 | |
70450 |
Ct scan head or brain without contrast | 12 | 12 | $105 | |
73564 |
X-ray of knee, 4 or more views | 12 | 12 | $54 | |
71250 |
Ct scan of chest without contrast | 11 | 11 | $148 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 62. This provider delivers 25× the peer median.Open Payments
Industry payments received
All-time total
$22
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, Inc | 1 | $21.71 |
By nature of payment
Frequently asked questions
What is Dr. Timothy Chen's medical specialty?
Dr. Timothy Chen practices Diagnostic Radiology Physician in Gaithersburg, MD.
Where does Dr. Timothy Chen practice?
Dr. Timothy Chen practices at 655 Watkins Mill RD, Gaithersburg, MD 208793301. Office phone: 3018485786.
What is Dr. Timothy Chen's NPI?
Dr. Timothy Chen's National Provider Identifier (NPI) is 1578893947, issued by NPPES.
Does Dr. Timothy Chen accept Medicare assignment?
Yes. Dr. Timothy Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Chen commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); X-ray of chest, 2 views (HCPCS 71046); Ct scan of abdomen and pelvis with contrast (HCPCS 74177). Source: CMS Medicare Physician & Other Practitioners file.