Physician Profile
Unclaimed ProfileAbout WILLIAMS
Based in Manassas, VA, John P Williams, MD is listed in the NPI registry under general surgery. John graduated from University of North Carolina at Chapel Hill School of Medicine in 1992. John is also listed as specialising in surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Williams specialise in?
Dr. Williams is a general surgeon in Manassas, VA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where is Dr. Williams located?
Dr. Williams is listed at 8650 SUDLEY RD #206, Manassas, VA 20110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Williams's phone number?
The number on file is (703) 368-9234. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Williams's NPI number?
Dr. Williams's National Provider Identifier is 1104837244. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Williams go to medical school?
Dr. Williams attended University of North Carolina at Chapel Hill School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Williams been practising?
Dr. Williams has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Williams do most often?
According to Medicare billing data, Dr. Williams performs procedures including partial removal of breast, biopsy of breast and placement of locating device using ultrasound, first growth and biopsy or removal of deep lymph nodes of underarm; reads or performs imaging such as complete ultrasound scan of 1 breast, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Williams confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Williams. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (703) 368-9234
- Email not available
Practice Locations
8650 SUDLEY RD #206
Manassas, VA 20110
Procedures Most Often Billed to Medicare
566 services · 517 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Partial removal of breast | Procedure | 19301 |
33 |
| Biopsy of breast and placement of locating device using ultrasound, first growth | Procedure | 19083 |
19 |
| Biopsy or removal of deep lymph nodes of underarm | Procedure | 38525 |
17 |
| Placement of locating device in breast using ultrasound guidance, first growth | Procedure | 19285 |
17 |
| Imaging of lymph nodes during surgery | Procedure | 38900 |
16 |
| Complete ultrasound scan of 1 breast | Imaging | 76641 |
80 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
189 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
88 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
47 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
35 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other general surgeons in Manassas 4
Same specialty, same city.
Trained at University of North Carolina at Chapel Hill School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1992 at University of North Carolina at Chapel Hill School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Partial removal of breast 8
Providers in VA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.