Physician Profile
Gregory P. McLennan, MD
Unclaimed ProfileAbout Dr. Mclennan
Gregory P. McLennan, MD practices urology in Saint Louis, MO. Gregory is a 2008 graduate of Saint Louis University School of Medicine. According to Medicare claims data, Gregory cared for 1,662 Medicare patients across 2,119 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and ultrasound measurement of bladder capacity after voiding.
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
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 251-8850
- Email not available
Practice Locations
701 S. NEW BALLAS ROAD, SUITE 330
Saint Louis, MO 63141
1820 Zumbehl Rd Ste 120
Saint Charles, MO 63303
Conditions Commonly Evaluated or Treated
Within Urology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Erectile dysfunction
- Kidney stones
- Overactive bladder
- Prostate cancer
- Urinary incontinence in women
- UTI
Bladder and urethra
Kidney and ureter
Male reproductive and sexual health
- Hydrocele
- Male infertility
- Peyronie's disease
- Testicular and scrotal pain
- Testicular cancer
- Testicular torsion
- Testosterone deficiency
- Varicocele
Prostate
Urinary symptoms and infection
- Blood in the urine
- Kidney infection
- Painful urination
- Recurrent urinary tract infections
- Urinary retention
Bladder & Urination
Kidney health
Men's health
Urinary symptoms
Procedures & services
Most searched procedures
Office diagnosis
Bladder procedures
- Artificial Urinary Sphincter Implant
- Bladder Botox Injection
- Bladder instillation therapy
- Radical bladder removal
- Sacral neuromodulation
- Sling surgery for stress incontinence
- Transurethral resection of bladder tumor
Diagnostic imaging
Kidney & ureter procedures
Kidney and ureter surgery
Male reproductive
- Hydrocele repair
- Penile implant surgery
- Surgical correction of penile curvature
- Testicle removal
- Varicocele repair
Prostate
Prostate procedures
- HoLEP Laser Prostate Surgery
- Prostatic urethral lift
- Rezum Water Vapor Therapy
- Transurethral resection of the prostate
Stone procedures
Procedures Most Often Billed to Medicare
2,119 services · 1,662 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound measurement of bladder capacity after voiding | Procedure | 51798 |
180 | As often as other peers in Urology |
| Diagnostic exam of bladder and urethra using an endoscope | Procedure | 52000 |
157 | More often than most peers in Urology |
| Electronic assessment of bladder emptying | Procedure | 51741 |
70 | More often than most peers in Urology |
| Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings | Procedure | 51784 |
65 | More often than most peers in Urology |
| Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies | Procedure | 51729 |
57 | More often than most peers in Urology |
| Simple change of bladder tube | Procedure | 51705 |
42 | As often as other peers in Urology |
| Simple removal of foreign body, stone, or stent in urethra or bladder using an endoscope | Procedure | 52310 |
28 | More often than most peers in Urology |
| Exam with injections of chemical for destruction of bladder using an endoscope | Procedure | 52287 |
26 | As often as other peers in Urology |
| Biopsy of prostate gland | Procedure | 55700 |
20 | As often as other peers in Urology |
| Crushing of stone of ureter with insertion of stent using an endoscope | Procedure | 52356 |
16 | As often as other peers in Urology |
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.
Other urologists at this location 3
Same specialty, same street address — most likely the same department or group.
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 urologists in Saint Louis 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Saint Louis University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Saint Louis University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound measurement of bladder capacity after voiding 8
Providers in MO who bill this service to Medicare most often.
Common questions
What is Dr. McLennan's specialty?
Dr. McLennan is an urologist in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
Where can I find Dr. McLennan?
Dr. McLennan is listed at 701 S. New Ballas Road, Suite 330, Saint Louis, MO 63141. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. McLennan?
The number on file is (314) 251-8850. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. McLennan's NPI number?
Dr. McLennan's National Provider Identifier is 1912160052. 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
What is Dr. McLennan's medical education?
Dr. McLennan attended Saint Louis University School of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. McLennan been practicing?
Dr. McLennan has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Dr. McLennan known for?
According to Medicare billing data, Dr. McLennan performs procedures including ultrasound measurement of bladder capacity after voiding, diagnostic exam of bladder and urethra using an endoscope and electronic assessment of bladder emptying; reads or performs imaging such as ultrasound scan of pelvic region through rectum; provides treatments such as 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. McLennan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. McLennan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.