Dr. Mark Littlejohn, MD
What this data tells you about Dr. Littlejohn
Dr. Mark Littlejohn is an otolaryngology in Frisco, TX, with 20 years in practice. Based on federal Medicare data, Dr. Littlejohn performed 1,017 Medicare services across 908 unique beneficiaries.
Between the years covered by Open Payments, Dr. Littlejohn received a total of $1,424 from 17 pharmaceutical and/or device companies across 49 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in otolaryngology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Littlejohn is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| New patient office visit (30-44 min) | 198 | $55 | $251 |
| New patient office visit (45-59 min) | 195 | $94 | $375 |
| Office visit, established patient (20-29 min) | 172 | $47 | $204 |
| Diagnostic exam of voice box using a flexible endoscope | 122 | $48 | $443 |
| Office visit, established patient (10-19 min) | 95 | $26 | $127 |
| Removal of impacted ear wax | 78 | $22 | $161 |
| Office visit, established patient (30-39 min) | 64 | $73 | $289 |
| Diagnostic exam of nasal passages using an endoscope | 38 | $43 | $673 |
| Repositioning exercises of head for treatment of dizziness, each day | 32 | $27 | $99 |
| Incision of eardrum with insertion of eardrum tube under local or topical anesthesia | 12 | $97 | $752 |
| Office visit, established patient, complex (40-54 min) | 11 | $109 | $406 |
Industry Payment Transparency
Open Payments through 2023 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2023)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2023 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Littlejohn is a clinical cardiology specialist, with moderate Medicare volume, and low-engagement industry engagement, with 20 years of practice experience.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Littlejohn experienced with new patient office visit (30-44 min)?
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How do Dr. Littlejohn's costs compare to other otolaryngologys in Frisco?
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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