Dr. Mark Williams, MD
1205 York Rd, Ste 33, Lutherville, MD 21093 • +1-848-555-3027
Medical Education: Accredited U.S. Medical School (Class of 1994)
What This Doctor Actually Performs: CMS Medicare Utilization & Lutherville Percentiles
NPI #1104820828 • CBSA Regional • Otolaryngology
Within the Lutherville, MD (CBSA local) Otolaryngology cohort, Dr. Mark Williams, MD with sub-specialty concentration in 33 Active CMS HCPCS Codes ranks at the 50th municipal percentile and 68.97th MD percentile (+0.17σ Z-score) based on 2,572 billed procedures for 613 patients.
Procedural volume for Dr. Williams is led by HCPCS 99213 (Focused Ear, Nose, Sinus & Throat Examination — 874 annual services, $116–$158 GPCI cash estimate), followed by CPT 31231 (Diagnostic Rigid/Flexible Nasal & Sinus Endoscopy, 643/yr) and CPT 31575 (Flexible Fiberoptic Laryngoscopy Vocal Cord Inspection, 489/yr).
Cash-pay intake data for NPI 1104820828 (1205 York Rd, Ste 33, Lutherville) indicates $209.00 typical out-of-pocket visit spend against a $209.00 locality benchmark, paired with 18-minute average reception wait and 4.40/5 biomarker openness.
Clinical background for Dr. Williams (MD, NPI #1104820828) includes accredited doctoral training (1994, 32 yrs in practice) and virtual + in-office availability across MD.
Compared against Lutherville, MD Otolaryngology peers
2,572 annual services across 613 beneficiaries
Standard deviations from MD 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 | 874 | 50th | $116 – $158 |
| 31231 | Diagnostic Rigid/Flexible Nasal & Sinus Endoscopy | 643 | 45th | $232 – $318 |
| 31575 | Flexible Fiberoptic Laryngoscopy Vocal Cord Inspection | 489 | 49th | $170 – $232 |
| 92557 | Comprehensive Pure-Tone Audiometry & Speech Recognition | 334 | 49th | $82 – $112 |
| 69210 | Instrumented Impacted Cerumen Removal Under Microscopy | 231 | 51th | $73 – $100 |
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Dr. Mark Williams, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Williams National Provider Identifier | NPI #1104820828 (MD) | CMS NPPES Registry (21093) |
| Dr. Williams Lutherville CMS Volume Rank | 50.00th Pct (2,572 CMS svcs; Z +0.174σ) | CMS Medicare Part B (MD Otolaryngology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Lutherville, MD) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 18 min lobby wait | 14 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.89/5 Listening • 4.40/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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