Dr. Sonja Knittel-Hliddal, MD
4234 Riverwalk Pkwy Ste 230, Riverside, CA 92505 • +1-844-555-5655
Medical Education: Accredited U.S. Medical School (Class of 1992)
What This Doctor Actually Performs: CMS Medicare Utilization & Riverside Percentiles
NPI #1356846109 • CBSA Regional • Critical Care (Intensivists)
Anchored in Riverside, CA 92505, Dr. Sonja Knittel-Hliddal, MD (NPI 1356846109) logged 993 annual procedures (focused low-volume boutique caseload (22.22th Riverside percentile), 48.34th CA percentile, -0.39σ) with sub-specialty concentration in 18 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Sonja Knittel-Hliddal (92505) place 99214 at the top of the practice ledger (447 yearly units, 22.22th metro rank), rounded out by 99213 and 93000.
Uninsured and high-deductible cash patients visiting Dr. Sonja Knittel-Hliddal in Riverside (92505) face an estimated $239.00 initial evaluation fee at 4234 Riverwalk Pkwy Ste 230 (in-person clinic visits only; 21-minute average reception wait; bedside manner 4.93/5 from 21 verified reports).
Spanning 34 years of clinical practice following 1992 graduation from medical training, Dr. Sonja Knittel-Hliddal integrates 18 Active CMS HCPCS Codes diagnostics for Riverside metro patients.
Compared against Riverside, CA Critical Care (Intensivists) peers
993 annual services across 206 beneficiaries
Standard deviations from CA Critical Care (Intensivists) 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 | 447 | 22.22th | $287 – $394 |
| 99213 | Established Preventive & Chronic Care Visit | 258 | 23.22th | $220 – $301 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 129 | 19.22th | $105 – $144 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 99 | 24.22th | $337 – $462 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 60 | 23.22th | $400 – $548 |
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Dr. Sonja Knittel-Hliddal, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Knittel-Hliddal National Provider Identifier | NPI #1356846109 (MD) | CMS NPPES Registry (92505) |
| Dr. Knittel-Hliddal Riverside CMS Volume Rank | 22.22th Pct (993 CMS svcs; Z -0.388σ) | CMS Medicare Part B (CA Critical Care (Intensivists)) |
| 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 • 21 min lobby wait | 21 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.93/5 Listening • 4.55/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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