Dr. Jonathan Hemphill, MD
6555 Coyle Ave Ste 280, Carmichael, CA 95608 • +1-608-555-8717
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Carmichael Percentiles
NPI #1952405326 • CBSA Regional • Interventional Cardiology
Statistical peer benchmarking across CA Interventional Cardiology providers positions Dr. Jonathan Hemphill, MD in Carmichael at +0.02σ (50th city percentile / 70th state percentile, 1,146 Medicare beneficiaries), with clinical focus spanning 64 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 6555 Coyle Ave Ste 280 shows Dr. Jonathan Hemphill's primary concentration in Moderate-to-High Complexity Internal Medicine Follow-Up (code 99214: 1884x/yr, 50th local percentile) alongside Established Preventive & Chronic Care Visit (99213: 1089x/yr, $109–$149).
Self-pay new patient consultations with Dr. Hemphill (CPT 99204 GPCI-adjusted benchmark) estimate around $239.00 (community reported average: $239.00) with in-person clinic visits only, 13-minute average reception wait, and a 4.48/5 modern protocol openness score across 15 patient logs.
Patients evaluating Dr. Jonathan Hemphill in ZIP 95608 note 13 years of post-doctoral tenure (null, 2013) alongside 3.7 annual CMS procedures per patient.
Compared against Carmichael, CA Interventional Cardiology peers
4,187 annual services across 1,146 beneficiaries
Standard deviations from CA Interventional Cardiology 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 | 1,884 | 50th | $142 – $195 |
| 99213 | Established Preventive & Chronic Care Visit | 1,089 | 50th | $109 – $149 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 544 | 53th | $52 – $71 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 419 | 49th | $167 – $229 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 251 | 46th | $198 – $271 |
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Dr. Jonathan Hemphill, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Hemphill National Provider Identifier | NPI #1952405326 (MD) | CMS NPPES Registry (95608) |
| Dr. Hemphill Carmichael CMS Volume Rank | 50.00th Pct (4,187 CMS svcs; Z +0.016σ) | CMS Medicare Part B (CA Interventional Cardiology) |
| Fair Cash-Pay New-Patient Benchmark | $239.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Carmichael, CA) |
| Waiting-Room Wait Time & Cash Friendliness | $239.00 avg paid • 13 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.83/5 Listening • 4.48/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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