Physician Profile
Vassilis J. Siomos, M.D. is a healthcare provider in Kalispell, MT specializing in urology. Vassilis trained at Loyola University of Chicago, Stritch School of Medicine, graduating in 2009. Medicare claims data shows Vassilis provided 753 services to 646 patients. 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 low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
350 HERITAGE WAY STE 2300
Kalispell, MT 59901
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.
Most searched conditions
Bladder and urethra
Kidney and ureter
Male reproductive and sexual health
Prostate
Urinary symptoms and infection
Bladder & Urination
Kidney health
Men's health
Urinary symptoms
Most searched procedures
Office diagnosis
Bladder procedures
Diagnostic imaging
Kidney & ureter procedures
Kidney and ureter surgery
Male reproductive
Prostate
Prostate procedures
Stone procedures
753 services · 646 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of bladder and urethra using an endoscope | Procedure | 52000 |
60 | As often as other peers in Urology |
| Ultrasound measurement of bladder capacity after voiding | Procedure | 51798 |
59 | Less often than most peers in Urology |
| Electronic assessment of bladder emptying | Procedure | 51741 |
31 | More often than most peers in Urology |
| Electronic assessment of bladder emptying | Procedure | 51741 |
25 | More often than most peers in Urology |
| Insertion of stent in ureter using an endoscope | Procedure | 52332 |
21 | As often as other peers in Urology |
| Biopsy of prostate gland | Procedure | 55700 |
13 | Less often than most peers in Urology |
| Crushing of stone of ureter with insertion of stent using an endoscope | Procedure | 52356 |
13 | Less often than most peers in Urology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
176 | More often than most peers in Urology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
97 | More often than most peers in Urology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
94 | 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.
Vassilis J. Siomos is an urologist in Kalispell, MT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
Vassilis J. Siomos is listed at 350 Heritage Way Ste 2300, Kalispell, MT 59901. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (406) 752-8456. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Vassilis J. Siomos's National Provider Identifier is 1598907149. 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
Vassilis J. Siomos attended Loyola University of Chicago, Stritch School of Medicine, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
Vassilis J. Siomos has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Vassilis J. Siomos performs procedures including diagnostic exam of bladder and urethra using an endoscope, ultrasound measurement of bladder capacity after voiding and electronic assessment of bladder emptying, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Vassilis J. Siomos. 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.