Physician Profile
Unclaimed ProfileAbout KNOWLES
Based in Mount Vernon, IL, David R Knowles, MD is listed in the NPI registry under urology. David graduated from Columbia University College of Physicians and Surgeons in 1998. According to Medicare claims data, David cared for 3,215 Medicare patients across 23,578 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (618) 244-4060
- Email not available
Practice Locations
4109 S WATER TOWER PL
Mount Vernon, IL 62864
Procedures Most Often Billed to Medicare
23,578 services · 3,215 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Diagnostic exam of bladder and urethra using an endoscope | Procedure | 52000 |
249 |
| Ultrasound measurement of bladder capacity after voiding | Procedure | 51798 |
167 |
| Instillation of anti-cancer drug into bladder | Procedure | 51720 |
115 |
| Biopsy of prostate gland | Procedure | 55700 |
50 |
| Crushing of stone of ureter with insertion of stent using an endoscope | Procedure | 52356 |
40 |
| Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope | Procedure | 52310 |
37 |
| Simple bladder irrigation and/or instillation | Procedure | 51700 |
36 |
| Imaging of urinary tract following injection of a contrast agent | Imaging | 74420 |
88 |
| Ultrasound scan of pelvic region through rectum | Imaging | 76872 |
60 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
163 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related 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 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1998 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of bladder and urethra using an endoscope 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Knowles?
Dr. Knowles is an urology in Mount Vernon, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “UROLOGY”.
NPI registry
What is Dr. Knowles's address?
Dr. Knowles is listed at 4109 S WATER TOWER PL, Mount Vernon, IL 62864. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Knowles?
The number on file is (618) 244-4060. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Knowles's NPI number?
Dr. Knowles's National Provider Identifier is 1881699908. 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. Knowles train?
Dr. Knowles attended Columbia University College of Physicians and Surgeons, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Knowles been practicing?
Dr. Knowles has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Knowles perform?
According to Medicare billing data, Dr. Knowles performs procedures including diagnostic exam of bladder and urethra using an endoscope, ultrasound measurement of bladder capacity after voiding and instillation of anti-cancer drug into bladder; reads or performs imaging such as imaging of urinary tract following injection of a contrast agent and ultrasound scan of pelvic region through rectum; provides treatments such as injection of drug or substance under skin or into muscle and administration of hormonal anti-neoplastic chemotherapy under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Knowles confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Knowles. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.