Mark Fritzler, MD
NPI 1508862871 · Urology Physician · Chico, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Fritzler, MD is a Urology Physician provider in Chico, CA (NPI 1508862871).
Provider details
- NPI number
- 1508862871
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G60227 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
451 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 93 | $48 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 72 | $128 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 63 | $78 |
| Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000 | 41 | $4 |
| Imaging of Urinary Tract Following Injection of a Contrast Agent74420 | 29 | $24 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 179 | 90 |
| Finasteride | 104 | 51 |
| Dutasteride | 24 | — |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 14 | — |
| Vibegronbrand: Gemtesa | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-22
- Last updated
- 2008-03-26
Frequently asked questions
- What is Mark Fritzler's NPI number?
- Mark Fritzler's National Provider Identifier (NPI) is 1508862871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fritzler's specialty?
- Mark Fritzler is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Fritzler located?
- Mark Fritzler's practice location on file with NPPES is 645 W East Ave, Chico, CA 95926-7201.
- What is Mark Fritzler's phone number?
- The practice phone number listed in the NPPES registry for Mark Fritzler is (530) 898-8405.
- Does Mark Fritzler accept Medicare?
- Mark Fritzler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Fritzler's NPI active?
- Yes — Mark Fritzler's NPI (1508862871) is active in the NPPES registry as of the last update on 2008-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.