Dr. Warren Fields, MD
30701 Woodward Ave Ste 200, Royal Oak, MI 48073 • +1-277-555-4909
Medical Education: Accredited U.S. Medical School (Class of 1998)
What This Doctor Actually Performs: CMS Medicare Utilization & Royal Oak Percentiles
NPI #1225158694 • CBSA Regional • Pulmonary Disease
Dr. Warren Fields, MD (NPI #1225158694) practices Pulmonary Disease in Royal Oak, MI (48073) with sub-specialty concentration in 30 Active CMS HCPCS Codes, recording 2,708 annual CMS services across 570 distinct beneficiaries—placing this practice as a upper-quartile active clinical volume (83.33th Royal Oak percentile) (+0.58σ vs MI state mean, 87.7th statewide percentile).
Granular CPT/HCPCS billing distribution at 30701 Woodward Ave Ste 200 shows Dr. Warren Fields's primary concentration in Established Pulmonary, Asthma & COPD Management (code 99214: 1110x/yr, 83.33th local percentile) alongside Pre- & Post-Bronchodilator Spirometry Airflow Evaluation (94060: 623x/yr, $95–$131).
Cash-pay intake data for NPI 1225158694 (30701 Woodward Ave Ste 200, Royal Oak) indicates $209.00 typical out-of-pocket visit spend against a $209.00 locality benchmark, paired with 17-minute average reception wait and 4.74/5 biomarker openness.
Spanning 28 years of clinical practice following 1998 graduation from medical training, Dr. Warren Fields integrates 30 Active CMS HCPCS Codes diagnostics for Royal Oak metro patients.
Compared against Royal Oak, MI Pulmonary Disease peers
2,708 annual services across 570 beneficiaries
Standard deviations from MI Pulmonary Disease mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Established Pulmonary, Asthma & COPD Management | 1,110 | 83.33th | $146 – $200 |
| 94060 | Pre- & Post-Bronchodilator Spirometry Airflow Evaluation | 623 | 78.33th | $95 – $131 |
| 94729 | Alveolar Carbon Monoxide Diffusing Capacity (DLCO) | 460 | 82.33th | $86 – $118 |
| 95810 | Attended Sleep Apnea Polysomnography Interpretation | 298 | 87.33th | $267 – $366 |
| 99204 | Comprehensive New Patient Respiratory & Sleep Workup | 217 | 78.33th | $206 – $282 |
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Dr. Warren Fields, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Fields National Provider Identifier | NPI #1225158694 (MD) | CMS NPPES Registry (48073) |
| Dr. Fields Royal Oak CMS Volume Rank | 83.33th Pct (2,708 CMS svcs; Z +0.576σ) | CMS Medicare Part B (MI Pulmonary Disease) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Royal Oak, MI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 17 min lobby wait | 21 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.96/5 Listening • 4.74/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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