Dr. Mark Janzen, MD
10800 Magnolia Avenue,, Kaiser Permanente Riverside Medical Center, Riverside, CA 92505 • +1-844-555-8569
Medical Education: Accredited U.S. Medical School (Class of 1999)
What This Doctor Actually Performs: CMS Medicare Utilization & Riverside Percentiles
NPI #1932329265 • CBSA Regional • Vascular Surgery
Anchored in Riverside, CA 92505, Dr. Mark Janzen, MD (NPI 1932329265) logged 1,520 annual procedures (mid-cohort balanced caseload (60th Riverside percentile), 44.29th CA percentile, -0.38σ) with sub-specialty concentration in 124 Active CMS HCPCS Codes.
Dr. Janzen's longitudinal care intensity (2.9 billed units per patient across 520 individuals) centers on 99214 (684 annual units) and 99213 ($221–$303 cash range).
Self-pay new patient consultations with Dr. Janzen (CPT 99204 GPCI-adjusted benchmark) estimate around $239.00 (community reported average: $239.00) with hybrid in-clinic and telehealth video consults, 10-minute average reception wait, and a 4.49/5 modern protocol openness score across 22 patient logs.
Clinical background for Dr. Janzen (MD, NPI #1932329265) includes accredited doctoral training (1999, 27 yrs in practice) and virtual + in-office availability across CA.
Compared against Riverside, CA Vascular Surgery peers
1,520 annual services across 520 beneficiaries
Standard deviations from CA Vascular Surgery mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Moderate-to-High Complexity Internal Medicine Follow-Up | 684 | 60th | $288 – $395 |
| 99213 | Established Preventive & Chronic Care Visit | 395 | 64th | $221 – $303 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 198 | 63th | $105 – $144 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 152 | 63th | $339 – $464 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 91 | 65th | $401 – $550 |
Are you Dr. Mark Janzen? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in Riverside, CA:
<a href="https://dotmd.com/doctors/mark-janzen-md-riverside-ca-1932329265" title="Dr. Mark Janzen, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1932329265.svg" alt="Dr. Mark Janzen Vascular Surgery Badge" width="280" height="72" /></a>
Dr. Mark Janzen, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Janzen National Provider Identifier | NPI #1932329265 (MD) | CMS NPPES Registry (92505) |
| Dr. Janzen Riverside CMS Volume Rank | 60.00th Pct (1,520 CMS svcs; Z -0.384σ) | CMS Medicare Part B (CA Vascular Surgery) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Riverside, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 10 min lobby wait | 22 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.81/5 Listening • 4.49/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. Mark Janzen
Other High-Volume Vascular Surgery Specialists in Riverside, CA
Ranked strictly by CMS Medicare volumeDr. Janzen Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Riverside, CA.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. Mark Janzen community threads and patient logs by age, biological sex, dosage, and treatment duration.