Dr. Kevin Marks, MD
521 W Grand Pkwy S, Katy, TX 77494 • +1-572-555-9175
Medical Education: Accredited U.S. Medical School (Class of 2003)
What This Doctor Actually Performs: CMS Medicare Utilization & Katy Percentiles
NPI #1679585228 • CBSA Regional • Gastroenterology
Operating out of Katy, TX (521 W Grand Pkwy S), Gastroenterology clinician Dr. Kevin Marks, MD (accredited MD/DO training, 2003) maintains a upper-quartile active clinical volume (72.73th Katy percentile) (72.51th TX percentile; Z-score -0.03σ across 3,128 documented services) with sub-specialty concentration in 21 Active CMS HCPCS Codes.
Fee-schedule auditing of NPI 1679585228 highlights 1157 annual claims for 99214 (72.73th Katy percentile; $53–$73 self-pay corridor) plus 782 encounters under 45380 and 657 under 43239.
Uninsured and high-deductible cash patients visiting Dr. Kevin Marks in Katy (77494) face an estimated $209.00 initial evaluation fee at 521 W Grand Pkwy S (hybrid in-clinic and telehealth video consults; 22-minute average reception wait; bedside manner 4.81/5 from 20 verified reports).
Patients evaluating Dr. Kevin Marks in ZIP 77494 note 23 years of post-doctoral tenure (null, 2003) alongside 14.5 annual CMS procedures per patient.
Compared against Katy, TX Gastroenterology peers
3,128 annual services across 216 beneficiaries
Standard deviations from TX Gastroenterology mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Established Gastroenterology, GERD & IBD Evaluation | 1,157 | 72.73th | $53 – $73 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 782 | 71.73th | $128 – $176 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 657 | 72.73th | $107 – $146 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 313 | 68.73th | $143 – $196 |
| 99204 | New Patient Digestive & Hepatology Consultation | 219 | 75.73th | $75 – $103 |
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Dr. Kevin Marks, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Marks National Provider Identifier | NPI #1679585228 (MD) | CMS NPPES Registry (77494) |
| Dr. Marks Katy CMS Volume Rank | 72.73th Pct (3,128 CMS svcs; Z -0.031σ) | CMS Medicare Part B (TX Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Katy, TX) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 22 min lobby wait | 20 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.81/5 Listening • 4.51/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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