Dr. Marcella Mcguinn, MD
610 S Maple Ave Ste 4050, Oak Park, IL 60304 • +1-213-555-8211
Medical Education: Accredited U.S. Medical School (Class of 2004)
What This Doctor Actually Performs: CMS Medicare Utilization & Oak Park Percentiles
NPI #1528083987 • CBSA Regional • Infectious Disease
CMS Medicare Part B utilization records credit Dr. Marcella Mcguinn (MD, NPI 1528083987) at 610 S Maple Ave Ste 4050 in Oak Park with 35,630 annual clinical services (372 beneficiaries), corresponding to a +0.57σ regional deviation and upper-quartile active clinical volume (75th Oak Park percentile) with sub-specialty concentration in 54 Active CMS HCPCS Codes.
Among 6 tracked CMS fee-schedule codes for Dr. Mcguinn (averaging 95.8 services per beneficiary), 99214 (Moderate-to-High Complexity Internal Medicine Follow-Up) represents 2% of tracked volume (561 encounters), paired with 99213 (324x).
Self-pay new patient consultations with Dr. Mcguinn (CPT 99204 GPCI-adjusted benchmark) estimate around $218.00 (community reported average: $218.00) with in-person clinic visits only, 12-minute average reception wait, and a 4.89/5 modern protocol openness score across 18 patient logs.
NPI registry verification (#1528083987) confirms Dr. Marcella Mcguinn's MD standing serving CBSA 60304 with a 4.95/5 patient scorecard.
Compared against Oak Park, IL Infectious Disease peers
35,630 annual services across 372 beneficiaries
Standard deviations from IL Infectious 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 | Moderate-to-High Complexity Internal Medicine Follow-Up | 561 | 75th | $51 – $70 |
| 99213 | Established Preventive & Chronic Care Visit | 324 | 71th | $39 – $54 |
| 93000 | In-Office 12-Lead Resting Electrocardiogram | 162 | 73th | $25 – $40 |
| G0439 | Annual Preventive Wellness & Cardiometabolic Risk Assessment | 125 | 71th | $60 – $82 |
| 99204 | Comprehensive New Patient Internal Medicine Diagnostic Visit | 75 | 70th | $71 – $97 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (54 HCPCS billing breadth) | 34,383 | 75th | $46 – $67 |
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Dr. Marcella Mcguinn, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mcguinn National Provider Identifier | NPI #1528083987 (MD) | CMS NPPES Registry (60304) |
| Dr. Mcguinn Oak Park CMS Volume Rank | 75.00th Pct (35,630 CMS svcs; Z +0.573σ) | CMS Medicare Part B (IL Infectious Disease) |
| Fair Cash-Pay New-Patient Benchmark | $218.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Oak Park, IL) |
| Waiting-Room Wait Time & Cash Friendliness | $218.00 avg paid • 12 min lobby wait | 18 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.86/5 Listening • 4.89/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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