Dr. Margaret Johnson, MD
What this data tells you about Dr. Johnson
Dr. Margaret Johnson is a pulmonary disease specialist in Jacksonville, FL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Johnson performed 1,135 Medicare services across 962 unique beneficiaries.
Between the years covered by Open Payments, Dr. Johnson received a total of $5,664 from 6 pharmaceutical and/or device companies across 8 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in pulmonary disease. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. 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 (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. |
188 | $91 | $450 |
| 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. |
137 | $68 | $296 |
| Pulmonary gas exchange test A test to examine how well the lungs exchange gases. |
99 | $42 | $311 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
97 | $61 | $314 |
| Lung volume test using sensors A test that measures the amount of air in the lungs using sensors. |
90 | $40 | $317 |
| Methacholine chloride administered as inhalation solution through a nebulizer, per 1 mg | 77 | $1 | $74 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
67 | $81 | $456 |
| Expiratory airflow and volume test A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume. |
62 | $20 | $217 |
| Spirometry test before and after medication A test that measures the amount of air you can exhale and the speed of your breathing before and after taking a medication. |
46 | $30 | $342 |
| 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. |
45 | $120 | $707 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
38 | $88 | $452 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
28 | $90 | $380 |
| Inhalation treatment for airway obstruction or sputum production A treatment involving the inhalation of medication to help clear airway obstructions or reduce sputum production. |
21 | $7 | $91 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
20 | $99 | $626 |
| New patient office visit, complex (60-74 min) | 18 | $162 | $891 |
| Exercise-induced lung stress test A test performed to evaluate how the lungs function during physical exertion. It helps identify breathing difficulties or lung conditions that occur specifically when exercising. |
17 | $7 | $195 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
16 | $17 | $96 |
| Lung airway sensitivity test A test used to measure the sensitivity of the airways in the lungs. |
15 | $45 | $364 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
15 | $138 | $604 |
| Inhalation treatment for pneumonia Administration of medication via inhalation to treat pneumonia. This procedure involves delivering therapeutic agents directly to the lungs. |
13 | $23 | $265 |
| Nitric oxide gas level test A test that measures the level of nitric oxide gas in the body. |
13 | $13 | $133 |
| Inhaled pentamidine, 300 mg Administration of FDA-approved pentamidine isethionate via a nebulizer or DME device. The dose is measured in 300 mg units. |
13 | $67 | $332 |
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 ›
The majority of payments (96%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
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. Johnson is a clinical cardiology specialist, with moderate Medicare volume, with consulting-driven industry engagement, with 20 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
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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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