Doctor profile · Federal record
Dr. John Williams, MD
Surgery Physician (CMS: General Surgery) · Manassas, VA
- NPI 1104837244
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8650 Sudley RD, #206
Manassas, VA 20110
(703) 368-9234
fax (703) 368-0505
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 5, 2010
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Virginia #0101059106
- Medicaid
- VA #007309775
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104837244. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
562
Distinct HCPCS
10
Medicare allowed
$105,401
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 133 | 124 | $125 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 86 | 65 | $174 | |
76641 |
Complete ultrasound scan of 1 breast | 79 | 72 | $104 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 58 | 58 | $215 | |
19301 |
Partial removal of breast | 46 | 44 | $572 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 39 | 37 | $88 | |
19285 |
Placement of locating device in breast using ultrasound guidance, first growth | 31 | 31 | $41 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 28 | 28 | $163 | |
19083 |
Biopsy of breast and placement of locating device using ultrasound, first growth | 26 | 26 | $501 | |
76882 |
Limited ultrasound scan of joint or other extremity structure except blood vessels | 13 | 12 | $42 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 38. This provider delivers 15× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. John Williams's medical specialty?
Dr. John Williams practices Surgery Physician in Manassas, VA.
Where does Dr. John Williams practice?
Dr. John Williams practices at 8650 Sudley RD, Manassas, VA 20110. Office phone: 7033689234.
What is Dr. John Williams's NPI?
Dr. John Williams's National Provider Identifier (NPI) is 1104837244, issued by NPPES.
Does Dr. John Williams accept Medicare assignment?
Yes. Dr. John Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Williams commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Complete ultrasound scan of 1 breast (HCPCS 76641). Source: CMS Medicare Physician & Other Practitioners file.