Physician Profile
Mark D. Fritzler, MD is a healthcare provider in Chico, CA specializing in urology. Mark trained at Baylor College of Medicine, graduating in 1987. Medicare claims data shows Mark provided 451 services to 372 patients. The services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes.
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.
645 W EAST AVE STE 1
Chico, CA 95926
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
451 services · 372 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound measurement of bladder capacity after voiding | Procedure | 51798 |
23 | Less often than most peers in Urology |
| Simple bladder irrigation and/or instillation | Procedure | 51700 |
20 | As often as other peers in Urology |
| Insertion of stent in ureter using an endoscope | Procedure | 52332 |
14 | 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 |
| Complicated insertion of bladder tube | Procedure | 51703 |
12 | Less often than most peers in Urology |
| Imaging of urinary tract following injection of a contrast agent | Imaging | 74420 |
29 | As often as other peers in Urology |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
93 | More often than most peers in Urology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
72 | More than most peers in Urology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
63 | More often than most peers in Urology |
| Manual urinalysis test with examination using microscope, non-automated | Lab test | 81000 |
41 | Less often than most peers in Urology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Fritzler is an urologist in Chico, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
Dr. Fritzler is listed at 645 W East Ave Ste 1, Chico, CA 95926. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (530) 898-8405. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Fritzler's National Provider Identifier is 1508862871. 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
Dr. Fritzler attended Baylor College of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
Dr. Fritzler has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Fritzler performs procedures including ultrasound measurement of bladder capacity after voiding, simple bladder irrigation and/or instillation and insertion of stent in ureter using an endoscope; reads or performs imaging such as imaging of urinary tract following injection of a contrast agent, 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 Dr. Fritzler. 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.