Doctor profile · Federal record
Dr. Kin-Sing Au, MD
Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Leesburg, VA
- NPI 1730172362
- Accepts Medicare
- 45 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
44035 Riverside Pkwy, Suite 100
Leesburg, VA 201768260
(703) 858-8850
fax (703) 858-8870 - Mailing address
-
133 Route 3
Dededo, GU 969296911
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- December 23, 2024
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State licenses (2)
- Guam #M-1793 · Virginia #0101046565
- Medicaid
- VA #010046769
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1730172362. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
82
Distinct HCPCS
4
Medicare allowed
$8,044
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 34 | 21 | $60 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 20 | 20 | $113 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $173 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 14 | 14 | $95 |
In context: peer comparison
Among 1 peers in Leesburg Radiation Oncology Physician, average services per provider: 20. This provider delivers 4.1× the peer median.Frequently asked questions
What is Dr. Kin-Sing Au's medical specialty?
Dr. Kin-Sing Au practices Radiation Oncology Physician in Leesburg, VA.
Where does Dr. Kin-Sing Au practice?
Dr. Kin-Sing Au practices at 44035 Riverside Pkwy, Leesburg, VA 201768260. Office phone: 7038588850.
What is Dr. Kin-Sing Au's NPI?
Dr. Kin-Sing Au's National Provider Identifier (NPI) is 1730172362, issued by NPPES.
Does Dr. Kin-Sing Au accept Medicare assignment?
Yes. Dr. Kin-Sing Au accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kin-Sing Au commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99212); New patient office or other outpatient visit (HCPCS 99203); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.