Dr. Patrick Brennan, DO
22024 Pontiac Trl, South Lyon, MI 48178 • +1-481-555-1419
Medical Education: Accredited U.S. Medical School (Class of 1998)
What This Doctor Actually Performs: CMS Medicare Utilization & South Lyon Percentiles
NPI #1770582793 • CBSA Regional • Family Practice
Operating out of South Lyon, MI (22024 Pontiac Trl), Family Practice clinician Dr. Patrick Brennan, DO (accredited MD/DO training, 1998) maintains a upper-quartile active clinical volume (66.67th South Lyon percentile) (94.85th MI percentile; Z-score +1.32σ across 6,447 documented services) with sub-specialty concentration in 87 Active CMS HCPCS Codes.
Among 6 tracked CMS fee-schedule codes for Dr. Brennan (averaging 20.8 services per beneficiary), 99214 (Comprehensive Primary Care & Chronic Protocol Management) represents 27% of tracked volume (1756 encounters), paired with 99213 (1296x).
For out-of-network patients contacting +1-481-555-1419, Dr. Brennan's practice posts a $209.00 GPCI self-pay consult estimate ($209.00 patient-logged median, 4.79/5 composite reality score over 18 submissions).
From 22024 Pontiac Trl in South Lyon (+1-481-555-1419), Dr. Brennan, DO (28-year clinical track record) delivers 87 Active CMS HCPCS Codes care.
Compared against South Lyon, MI Family Practice peers
6,447 annual services across 310 beneficiaries
Standard deviations from MI Family Practice mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Comprehensive Primary Care & Chronic Protocol Management | 1,756 | 66.67th | $43 – $60 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 1,296 | 65.67th | $33 – $48 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 502 | 68.67th | $50 – $68 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 376 | 69.67th | $25 – $40 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 251 | 71.67th | $60 – $82 |
| 96372 | Therapeutic Subcutaneous/Intramuscular Injection Administration (87 HCPCS billing breadth) | 2,265 | 66.67th | $45 – $65 |
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Dr. Patrick Brennan, DO Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Brennan National Provider Identifier | NPI #1770582793 (DO) | CMS NPPES Registry (48178) |
| Dr. Brennan South Lyon CMS Volume Rank | 66.67th Pct (6,447 CMS svcs; Z +1.324σ) | CMS Medicare Part B (MI Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (South Lyon, MI) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 10 min lobby wait | 18 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.77/5 Listening • 4.71/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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