Dr. Mark Littlejohn, MD
8380 Warren Pkwy Ste 504, Frisco, TX 75034 • +1-866-555-5470
Medical Education: Accredited U.S. Medical School (Class of 2016)
What This Doctor Actually Performs: CMS Medicare Utilization & Frisco Percentiles
NPI #1932176252 • CBSA Regional • Otolaryngology
Within the Frisco, TX (CBSA local) Otolaryngology cohort, Dr. Mark Littlejohn, MD with sub-specialty concentration in 57 Active CMS HCPCS Codes ranks at the 16.67th municipal percentile and 22.14th TX percentile (-0.49σ Z-score) based on 1,000 billed procedures for 550 patients.
Dr. Littlejohn's longitudinal care intensity (1.8 billed units per patient across 550 individuals) centers on 99213 (340 annual units) and 31231 ($253–$347 cash range).
Uninsured and high-deductible cash patients visiting Dr. Mark Littlejohn in Frisco (75034) face an estimated $209.00 initial evaluation fee at 8380 Warren Pkwy Ste 504 (in-person clinic visits only; 15-minute average reception wait; bedside manner 4.61/5 from 3 verified reports).
Credentialed as an MD specialist with 10 years post-graduation experience since completing medical school at an LCME/COCA institution (2016), Dr. Littlejohn coordinates 57 Active CMS HCPCS Codes workups from 8380 Warren Pkwy Ste 504 (+1-866-555-5470).
Compared against Frisco, TX Otolaryngology peers
1,000 annual services across 550 beneficiaries
Standard deviations from TX 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 | 340 | 16.67th | $126 – $172 |
| 31231 | Diagnostic Rigid/Flexible Nasal & Sinus Endoscopy | 250 | 12.67th | $253 – $347 |
| 31575 | Flexible Fiberoptic Laryngoscopy Vocal Cord Inspection | 190 | 13.67th | $185 – $253 |
| 92557 | Comprehensive Pure-Tone Audiometry & Speech Recognition | 130 | 19.67th | $89 – $122 |
| 69210 | Instrumented Impacted Cerumen Removal Under Microscopy | 90 | 19.67th | $79 – $109 |
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Dr. Mark Littlejohn, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Littlejohn National Provider Identifier | NPI #1932176252 (MD) | CMS NPPES Registry (75034) |
| Dr. Littlejohn Frisco CMS Volume Rank | 16.67th Pct (1,000 CMS svcs; Z -0.491σ) | CMS Medicare Part B (TX Otolaryngology) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Frisco, TX) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 15 min lobby wait | 3 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.61/5 Listening • 4.56/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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