Dr. Alan Mermelstein, MD
7439 Frankford Ave, Phila, PA 19136 • +1-950-555-5181
Medical Education: Accredited U.S. Medical School (Class of 2018)
What This Doctor Actually Performs: CMS Medicare Utilization & Phila Percentiles
NPI #1073520458 • CBSA Regional • Gastroenterology
Operating out of Phila, PA (7439 Frankford Ave), Gastroenterology clinician Dr. Alan Mermelstein, MD (accredited MD/DO training, 2018) maintains a mid-cohort balanced caseload (40th Phila percentile) (33.14th PA percentile; Z-score -0.65σ across 1,145 documented services) with sub-specialty concentration in 23 Active CMS HCPCS Codes.
Procedural volume for Dr. Mermelstein is led by HCPCS 99214 (Established Gastroenterology, GERD & IBD Evaluation — 424 annual services, $154–$211 GPCI cash estimate), followed by CPT 45380 (Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy, 286/yr) and CPT 43239 (Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy, 240/yr).
Cash-pay intake data for NPI 1073520458 (7439 Frankford Ave, Phila) indicates $209.00 typical out-of-pocket visit spend against a $209.00 locality benchmark, paired with 18-minute average reception wait and 4.79/5 biomarker openness.
Clinical background for Dr. Mermelstein (MD, NPI #1073520458) includes accredited doctoral training (2018, 8 yrs in practice) and virtual + in-office availability across PA.
Compared against Phila, PA Gastroenterology peers
1,145 annual services across 406 beneficiaries
Standard deviations from PA 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 | 424 | 40th | $154 – $211 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 286 | 42th | $371 – $509 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 240 | 42th | $308 – $422 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 115 | 45th | $413 – $566 |
| 99204 | New Patient Digestive & Hepatology Consultation | 80 | 37th | $217 – $297 |
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Dr. Alan Mermelstein, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Mermelstein National Provider Identifier | NPI #1073520458 (MD) | CMS NPPES Registry (19136) |
| Dr. Mermelstein Phila CMS Volume Rank | 40.00th Pct (1,145 CMS svcs; Z -0.654σ) | CMS Medicare Part B (PA Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Phila, PA) |
| 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 • 4.79/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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