Dr. Sean Mcmillan, MD
801 Pole Line Rd W Ste 381, Twin Falls, ID 83301 • +1-328-555-7209
Medical Education: Accredited U.S. Medical School (Class of 1994)
What This Doctor Actually Performs: CMS Medicare Utilization & Twin Falls Percentiles
NPI #1558353821 • CBSA Regional • Rheumatology
Operating out of Twin Falls, ID (801 Pole Line Rd W Ste 381), Rheumatology clinician Dr. Sean Mcmillan, MD (accredited MD/DO training, 1994) maintains a top-decile high-throughput specialist (99th percentile in Twin Falls) (18.18th ID percentile; Z-score -0.80σ across 827 documented services) with sub-specialty concentration in 12 Active CMS HCPCS Codes.
Fee-schedule auditing of NPI 1558353821 highlights 380 annual claims for 99214 (99th Twin Falls percentile; $101–$138 self-pay corridor) plus 174 encounters under 20610 and 124 under 96413.
Direct cash-pay transparency modeling sets Dr. Mcmillan's baseline new-consult rate near $209.00 in Twin Falls, ID (cash-pay accepted, hybrid in-clinic and telehealth video consults, 9-minute average reception wait).
Patients evaluating Dr. Sean Mcmillan in ZIP 83301 note 32 years of post-doctoral tenure (null, 1994) alongside 3.8 annual CMS procedures per patient.
Top 10% Rheumatology volume leader in Twin Falls, ID
827 annual services across 219 beneficiaries
Standard deviations from ID Rheumatology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Autoimmune Arthritis & Biologic/DMARD Safety Evaluation | 380 | 99th | $101 – $138 |
| 20610 | Large Joint Synovial Arthrocentesis or Corticosteroid Injection | 174 | 99.5th | $80 – $109 |
| 96413 | Intravenous Biologic Infusion Therapy (First Hour) | 124 | 99.5th | $138 – $190 |
| 76881 | Complete Joint Synovitis High-Resolution Ultrasound | 83 | 99.5th | $105 – $144 |
| 99204 | New Patient Autoimmune & Rheumatology Diagnostic Workup | 66 | 99.5th | $138 – $190 |
Are you Dr. Sean Mcmillan? Embed your Official DotMD Verification Badge (0-JS SVG)
Paste this lightweight SVG snippet onto your clinic bio page in Twin Falls, ID:
<a href="https://dotmd.com/doctors/sean-mcmillan-md-twin-falls-id-1558353821" title="Dr. Sean Mcmillan, MD - Verified CMS Utilization on DotMD"><img src="https://dotmd.com/badges/npi/1558353821.svg" alt="Dr. Sean Mcmillan Rheumatology Badge" width="280" height="72" /></a>
Dr. Sean Mcmillan, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mcmillan National Provider Identifier | NPI #1558353821 (MD) | CMS NPPES Registry (83301) |
| Dr. Mcmillan Twin Falls CMS Volume Rank | 99.00th Pct (827 CMS svcs; Z -0.796σ) | CMS Medicare Part B (ID Rheumatology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Twin Falls, ID) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 9 min lobby wait | 23 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.93/5 Listening • 4.86/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
Ask our AI Specialists anything about Dr. Sean Mcmillan
Dr. Mcmillan Waiting-Room Q&A & Patient Experience Logs
Anonymous patient-submitted wait times, cash visit fees, and bedside manner discussions in Twin Falls, ID.
Share your self-pay visit cost and lobby wait time—no account, email, or IP stored.
Filter Dr. Sean Mcmillan community threads and patient logs by age, biological sex, dosage, and treatment duration.