Dr. Mark Costello, MD
169 Ashley Ave, Room 202 Main Hospital Msc333, Charleston, SC 29425 • +1-651-555-3214
Medical Education: Accredited U.S. Medical School (Class of 1996)
What This Doctor Actually Performs: CMS Medicare Utilization & Charleston Percentiles
NPI #1497103550 • CBSA Regional • Otolaryngology
Dr. Mark Costello, MD (NPI #1497103550) practices Otolaryngology in Charleston, SC (29425) with sub-specialty concentration in 56 Active CMS HCPCS Codes, recording 1,087 annual CMS services across 421 distinct beneficiaries—placing this practice as a focused low-volume boutique caseload (26.67th Charleston percentile) (-0.67σ vs SC state mean, 22.81th statewide percentile).
Fee-schedule auditing of NPI 1497103550 highlights 370 annual claims for 99213 (26.67th Charleston percentile; $106–$146 self-pay corridor) plus 272 encounters under 31231 and 207 under 31575.
Self-pay new patient consultations with Dr. Costello (CPT 99204 GPCI-adjusted benchmark) estimate around $209.00 (community reported average: $209.00) with hybrid in-clinic and telehealth video consults, 13-minute average reception wait, and a 4.40/5 modern protocol openness score across 25 patient logs.
Patients evaluating Dr. Mark Costello in ZIP 29425 note 30 years of post-doctoral tenure (null, 1996) alongside 2.6 annual CMS procedures per patient.
Compared against Charleston, SC Otolaryngology peers
1,087 annual services across 421 beneficiaries
Standard deviations from SC Otolaryngology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99213 | Focused Ear, Nose, Sinus & Throat Examination | 370 | 26.67th | $106 – $146 |
| 31231 | Diagnostic Rigid/Flexible Nasal & Sinus Endoscopy | 272 | 29.67th | $214 – $293 |
| 31575 | Flexible Fiberoptic Laryngoscopy Vocal Cord Inspection | 207 | 22.67th | $156 – $214 |
| 92557 | Comprehensive Pure-Tone Audiometry & Speech Recognition | 141 | 24.67th | $75 – $103 |
| 69210 | Instrumented Impacted Cerumen Removal Under Microscopy | 98 | 30.67th | $67 – $92 |
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Dr. Mark Costello, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Costello National Provider Identifier | NPI #1497103550 (MD) | CMS NPPES Registry (29425) |
| Dr. Costello Charleston CMS Volume Rank | 26.67th Pct (1,087 CMS svcs; Z -0.670σ) | CMS Medicare Part B (SC Otolaryngology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Charleston, SC) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 13 min lobby wait | 25 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.81/5 Listening • 4.40/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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