Medicare Enrolled
Dr. Mary Cavnar-Johnson, M.D.
Family Medicine · Kingwood, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Cavnar-Johnson from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Cavnar-Johnson
Dr. Mary Cavnar-Johnson is a family medicine specialist in Kingwood, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Cavnar-Johnson performed 3,773 Medicare services in 2023. These records do not provide a deduplicated patient total.
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 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. 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. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years of NPI registration
▲ Top 6% volume in TX
$6,242 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗3,773
Medicare services
Top 6% in TX for family medicine
Not available
Unique patients (not deduplicated)
$45
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
706 | $63 | $610 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
605 | $87 | $894 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
489 | $43 | $525 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
256 | $8 | $69 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
252 | $10 | $94 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
240 | $131 | $958 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
221 | $13 | $119 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
194 | $16 | $149 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
164 | $10 | $86 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
128 | $10 | $137 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
115 | $1 | $14 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
83 | $1 | $16 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
39 | $16 | $169 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
36 | $15 | $134 |
| Betamethasone steroid injection An injection containing a combination of betamethasone acetate and betamethasone sodium phosphate. |
34 | $5 | $55 |
| Free PSA test A blood test that measures the amount of unbound prostate-specific antigen in the blood. |
28 | $18 | $164 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
25 | $29 | $263 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
24 | $15 | $187 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
20 | $10 | $140 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
19 | $13 | $121 |
| Iron level test | 15 | $6 | $58 |
| Transferrin level test A blood test that measures the amount of transferrin, a protein that binds to and transports iron in the body. |
15 | $12 | $113 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
14 | $19 | $207 |
| PSA test (prostate cancer screening) | 14 | $18 | $164 |
| Initial preventive physical examination, new Medicare beneficiary A comprehensive preventive health visit for new Medicare beneficiaries during their first 12 months of enrollment. The service is conducted as a face-to-face visit and is limited to preventive care. |
14 | $167 | $1,371 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
12 | $87 | $1,352 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
11 | $35 | $391 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$6,242
Total received (2018-2024)
Avg $892/year across 7 years
Top 10% in TX for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
49
Companies
271
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$778
2023
$849
2022
$651
2021
$2,314
2020
$620
2019
$389
2018
$642
Payments by company (2024)
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$117
ABBVIE INC.
$88
Sumitomo Pharma America, Inc.
$79
Novo Nordisk Inc
$78
GlaxoSmithKline, LLC.
$62
Lilly USA, LLC
$61
PFIZER INC.
$39
Paratek Pharmaceuticals, Inc.
$39
Abbott Laboratories
$33
Takeda Pharmaceuticals U.S.A., Inc.
$24
Edwards Lifesciences Corporation
$21
Astellas Pharma US Inc
$20
Acella Pharmaceuticals, LLC
$19
Exact Sciences Corporation
$18
Dexcom, Inc.
$17
Inari Medical, Inc.
$17
Amgen Inc.
$16
AstraZeneca Pharmaceuticals LP
$15
Otsuka Pharmaceutical Development & Commercialization, Inc.
$15
Top 3 companies account for 36.6% of 2024 payments
All-time payments by company (2018-2024) ›
Biohaven Pharmaceuticals, Inc.
$1,300
Novo Nordisk Inc
$708
Lilly USA, LLC
$639
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$379
Amgen Inc.
$317
AKRIMAX PHARMACEUTICALS, LLC
$286
PFIZER INC.
$257
ABBVIE INC.
$206
GlaxoSmithKline, LLC.
$188
Astellas Pharma US Inc
$185
Abbott Laboratories
$160
Sumitomo Pharma America, Inc.
$150
AbbVie Inc.
$140
AstraZeneca Pharmaceuticals LP
$126
Currax Pharmaceuticals LLC
$90
Inspire Medical Systems, Inc.
$89
Amneal Pharmaceuticals LLC
$87
Boehringer Ingelheim Pharmaceuticals, Inc.
$85
Biohaven Pharmaceutical Holding Company Ltd.
$72
Eisai Inc.
$70
Allergan, Inc.
$66
Merck Sharp & Dohme Corporation
$42
ARBOR PHARMACEUTICALS, INC.
$42
Radius Health, Inc.
$42
Paratek Pharmaceuticals, Inc.
$39
Takeda Pharmaceuticals U.S.A., Inc.
$37
Kowa Pharmaceuticals America, Inc.
$35
SANOFI-AVENTIS U.S. LLC
$32
Genentech USA, Inc.
$32
Exact Sciences Corporation
$31
IBSA Pharma Inc.
$26
Edwards Lifesciences Corporation
$21
Arbor Pharmaceuticals, Inc.
$21
Acella Pharmaceuticals, LLC
$19
E.R. Squibb & Sons, L.L.C.
$18
Allergan Inc.
$18
Amarin Pharma Inc.
$18
Dexcom, Inc.
$17
Inari Medical, Inc.
$17
Medtronic USA, Inc.
$15
Horizon Therapeutics plc
$15
Synergy Pharmaceuticals Inc
$15
Otsuka Pharmaceutical Development & Commercialization, Inc.
$15
Ironwood Pharmaceuticals, Inc
$14
Sunovion Pharmaceuticals Inc.
$14
AMAG Pharmaceuticals, Inc.
$12
Bausch Health US, LLC
$12
Purdue Pharma L.P.
$12
IDORSIA PHARMACEUTICALS US INC
$12
Top 3 companies account for 42.4% of all-time payments
Associated products mentioned in payments ›
AIRSUPRA · ANORO · APLENZIN · AREXVY · Aimovig · BASAGLAR · BELSOMRA · BYDUREON · CHANTIX · CONTRAVE · Cologuard Collection Kit · DUZALLO · Dayvigo · Dexcom G6 Transmitter · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · EMGALITY · EVENITY · Edarbi · FARXIGA · FLOWTRIEVER CATHETER · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Libre 2 · GEMTESA · Horizant · INSPIRE · INTRAROSA · JANUVIA · JARDIANCE · KYPHON Balloon Kyphoplasty · MOUNJARO · MYRBETRIQ · NP Thyroid 60 · NURTEC ODT · NUZYRA · Otezla · Ozempic · PENNSAID · PRALUENT · PREMARIN · PREVNAR 13 · PREVNAR 20 · PROCLAIM · Proclaim IPG · Prolia · QULIPTA · QUVIVIQ · RELISTOR · REXULTI · RYBELSUS · Repatha · Rybelsus · S · SEGLENTIS · SHINGRIX · SOLIQUA 100/33 · STIOLTO RESPIMAT · SYMPROIC · TOVIAZ · TRINTELLIX · TRULICITY · Tirosint · Tresiba · Trulance · Tymlos · UBRELVY · UNITHROID · VIIBRYD · VRAYLAR · Vascepa · Veozah · Victoza · Wegovy · XIFAXAN · Xofluza
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Family medicine physicians in nearby ZIP areas
853
County median income
$73,104
Nearest hospital to ZIP centroid (approximate)
KINGWOOD PINES HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Cavnar-Johnson is a clinical cardiology specialist, with above-average Medicare volume (top 6% in TX), with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Cavnar-Johnson experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Cavnar-Johnson performed 706 office visit, established patient (20-29 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Cavnar-Johnson receive payments from pharmaceutical companies?
Yes. Dr. Cavnar-Johnson received a total of $6,242 from 49 companies across 271 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Cavnar-Johnson's costs compare to other family medicine physicians in Kingwood?
Dr. Cavnar-Johnson's average Medicare payment per service is $45. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Cavnar-Johnson) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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. Data Coverage reflects 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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