Dr. Charles Johnson, MD
6701 Airport Blvd Ste A101, Mobile, AL 36608 • +1-957-555-3220
Medical Education: Accredited U.S. Medical School (Class of 2013)
What This Doctor Actually Performs: CMS Medicare Utilization & Mobile Percentiles
NPI #1285675835 • CBSA Regional • Gastroenterology
Within the Mobile, AL (CBSA local) Gastroenterology cohort, Dr. Charles Johnson, MD with sub-specialty concentration in 35 Active CMS HCPCS Codes ranks at the 36.36th municipal percentile and 30.34th AL percentile (-0.61σ Z-score) based on 1,163 billed procedures for 426 patients.
Procedural volume for Dr. Johnson is led by HCPCS 99214 (Established Gastroenterology, GERD & IBD Evaluation — 430 annual services, $128–$175 GPCI cash estimate), followed by CPT 45380 (Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy, 291/yr) and CPT 43239 (Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy, 244/yr).
Uninsured and high-deductible cash patients visiting Dr. Charles Johnson in Mobile (36608) face an estimated $209.00 initial evaluation fee at 6701 Airport Blvd Ste A101 (in-person clinic visits only; 9-minute average reception wait; bedside manner 4.91/5 from 9 verified reports).
NPI registry verification (#1285675835) confirms Dr. Charles Johnson's MD standing serving CBSA 36608 with a 4.90/5 patient scorecard.
Compared against Mobile, AL Gastroenterology peers
1,163 annual services across 426 beneficiaries
Standard deviations from AL 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 | 430 | 36.36th | $128 – $175 |
| 45380 | Diagnostic Colonoscopy w/ Mucosal Tissue Biopsy | 291 | 32.36th | $308 – $422 |
| 43239 | Upper GI Esophagogastroduodenoscopy (EGD) w/ Biopsy | 244 | 35.36th | $256 – $351 |
| 45385 | Colonoscopy w/ Snare Polypectomy Lesion Removal | 116 | 38.36th | $343 – $470 |
| 99204 | New Patient Digestive & Hepatology Consultation | 81 | 39.36th | $180 – $247 |
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Dr. Charles Johnson, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Johnson National Provider Identifier | NPI #1285675835 (MD) | CMS NPPES Registry (36608) |
| Dr. Johnson Mobile CMS Volume Rank | 36.36th Pct (1,163 CMS svcs; Z -0.607σ) | CMS Medicare Part B (AL Gastroenterology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Mobile, AL) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 9 min lobby wait | 9 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.91/5 Listening • 4.87/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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