Dr. Mary Cavnar-Johnson, M.D.
What this data tells you about Dr. Cavnar-Johnson
Dr. Mary Cavnar-Johnson is a family medicine in Kingwood, TX, with 19 years in practice. Based on federal Medicare data, Dr. Cavnar-Johnson performed 3,773 Medicare services across 1,977 unique beneficiaries.
Between the years covered by Open Payments, Dr. Cavnar-Johnson received a total of $6,242 from 49 pharmaceutical and/or device companies across 271 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. 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. Cavnar-Johnson 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 |
|---|---|---|---|
| Office visit, established patient (20-29 min) | 706 | $63 | $610 |
| Office visit, established patient (30-39 min) | 605 | $87 | $894 |
| Chronic care management, first 20 min/month | 489 | $43 | $525 |
| Complete blood count (CBC) with differential | 256 | $8 | $69 |
| Comprehensive metabolic blood panel | 252 | $10 | $94 |
| Annual wellness visit, follow-up | 240 | $131 | $958 |
| Lipid panel (cholesterol and triglycerides) | 221 | $13 | $119 |
| Thyroid stimulating hormone (TSH) test | 194 | $16 | $149 |
| Hemoglobin A1c test (diabetes monitoring) | 164 | $10 | $86 |
| Drug injection, under skin or into muscle | 128 | $10 | $137 |
| Steroid injection (triamcinolone) | 115 | $1 | $14 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 83 | $1 | $16 |
| Chest X-ray, 2 views | 39 | $16 | $169 |
| Vitamin B-12 level test | 36 | $15 | $134 |
| Betamethasone steroid injection | 34 | $5 | $55 |
| Psa (prostate specific antigen) measurement, free | 28 | $18 | $164 |
| Vitamin D level test | 25 | $29 | $263 |
| Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 24 | $15 | $187 |
| Electrocardiogram (EKG), 12-lead | 20 | $10 | $140 |
| Ferritin level test (iron stores) | 19 | $13 | $121 |
| Iron level test | 15 | $6 | $58 |
| Transferrin (iron binding protein) level | 15 | $12 | $113 |
| X-ray of lower and sacral spine, 2-3 views | 14 | $19 | $207 |
| PSA test (prostate cancer screening) | 14 | $18 | $164 |
| Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment | 14 | $167 | $1,371 |
| New patient office visit (45-59 min) | 12 | $87 | $1,352 |
| Removal of impacted ear wax | 11 | $35 | $391 |
Industry Payment Transparency
Open Payments through 2024 ↗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 (2024)
Associated products mentioned in payments ›
Most payments (77%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 10% for family medicine in TX.
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 2024 |
| 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. Cavnar-Johnson is a clinical cardiology specialist, with above-average Medicare volume (top 6% in TX), and high industry engagement (low-engagement, top 10%), with 19 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. Cavnar-Johnson experienced with office visit, established patient (20-29 min)?
Does Dr. Cavnar-Johnson receive payments from pharmaceutical companies?
How do Dr. Cavnar-Johnson's costs compare to other family medicines in Kingwood?
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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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