Dr. Thalia Mayes, MD
161 Marginal Way, Portland, ME 04101 • +1-556-555-9763
Medical Education: Accredited U.S. Medical School (Class of 1998)
What This Doctor Actually Performs: CMS Medicare Utilization & Portland Percentiles
NPI #1033126826 • CBSA Regional • Gastroenterology
Operating out of Portland, ME (161 Marginal Way), Gastroenterology clinician Dr. Thalia Mayes, MD (accredited MD/DO training, 1998) maintains a upper-quartile active clinical volume (76.92th Portland percentile) (84.21th ME percentile; Z-score +1.47σ across 9,270 documented services) with sub-specialty concentration in 36 Active CMS HCPCS Codes.
Medicare Part B line-item claims for Dr. Thalia Mayes (04101) place 99214 at the top of the practice ledger (3430 yearly units, 76.92th metro rank), rounded out by 45380 and 43239.
Uninsured and high-deductible cash patients visiting Dr. Thalia Mayes in Portland (04101) face an estimated $209.00 initial evaluation fee at 161 Marginal Way (in-person clinic visits only; 17-minute average reception wait; bedside manner 4.80/5 from 15 verified reports).
Credentialed as an MD specialist with 28 years post-graduation experience since completing medical school at an LCME/COCA institution (1998), Dr. Mayes coordinates 36 Active CMS HCPCS Codes workups from 161 Marginal Way (+1-556-555-9763).
Compared against Portland, ME Gastroenterology peers
9,270 annual services across 236 beneficiaries
Standard deviations from ME 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 | 3,430 | 76.92th | $43 – $58 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 2,318 | 73.92th | $103 – $141 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 1,947 | 81.92th | $85 – $117 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 927 | 76.92th | $114 – $157 |
| 99204 | New Patient Digestive & Hepatology Consultation | 649 | 76.92th | $60 – $82 |
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Dr. Thalia Mayes, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mayes National Provider Identifier | NPI #1033126826 (MD) | CMS NPPES Registry (04101) |
| Dr. Mayes Portland CMS Volume Rank | 76.92th Pct (9,270 CMS svcs; Z +1.467σ) | CMS Medicare Part B (ME Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Portland, ME) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 17 min lobby wait | 15 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.80/5 Listening • 4.69/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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