Dr. Douglas Johnston, M.D.
What this data tells you about Dr. Johnston
Dr. Douglas Johnston is a thoracic surgery specialist in Chicago, IL, with 18 years of NPI registration. Based on federal Medicare data, Dr. Johnston performed 351 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Johnston received a total of $207,123 from 20 pharmaceutical and/or device companies across 306 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. Johnston 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.
Medicare Practice Summary — 2023
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 |
|---|---|---|---|
| Anticoagulant management for warfarin Management of anticoagulant therapy for a patient taking warfarin. This service involves monitoring and adjusting the medication regimen. |
179 | $9 | $65 |
| 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. |
40 | $92 | $330 |
| Endoscopic vein harvest A surgical procedure to remove a vein using an endoscope, which is a thin, lighted tube inserted through small incisions. |
30 | $14 | $600 |
| Coronary artery bypass graft, 1 artery Surgical procedure to bypass a blocked coronary artery using a graft from another artery. This restores blood flow to the heart muscle. |
23 | $1,134 | $11,953 |
| Aortic valve replacement surgery Surgical replacement of the aortic valve using a heart-lung machine to maintain blood circulation during the procedure. |
22 | $992 | $13,192 |
| Mitral valve replacement surgery Surgical replacement of the mitral valve in the heart using a heart-lung machine to maintain circulation during the procedure. |
22 | $2,315 | $13,930 |
| 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. |
21 | $103 | $323 |
| Extensive heart surgery on heart-lung machine Major surgical procedure to repair or reconstruct the right upper chamber of the heart while the patient is connected to a heart-lung machine. |
14 | $662 | $4,315 |
Industry Payment Transparency
Open Payments through 2024 ↗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.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Geographic Context
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. Johnston is a clinical cardiology specialist, with above-average Medicare volume (top 23% in IL), with 18 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. Johnston experienced with anticoagulant management for warfarin?
Does Dr. Johnston receive payments from pharmaceutical companies?
How do Dr. Johnston's costs compare to other thoracic surgerists in Chicago?
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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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