Physician Profile
Based in Chicago, IL, Douglas R. Johnston, M.D. is listed in the NPI registry under thoracic surgery (cardiothoracic). Douglas graduated from Harvard Medical School in 1998. Medicare claims data shows Douglas provided 218 services to 150 patients. The services billed most often include anticoagulant management of patient taking warfarin, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and harvest of vein using an endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
675 N SAINT CLAIR ST STE 19-100
Chicago, IL 60611
9500 Euclid Ave H-35
Cleveland, OH 44195
Within Thoracic Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Airway
Chest tumors
Chest wall
Diaphragm
Esophagus
Esophagus and stomach
Heart lining
Infection
Lung
Lung cancer
Lung conditions
Nerves
Nerves and blood vessels
Neuromuscular
Pleural disease
Sweating disorders
Trauma
Vascular
Airway
Airway surgery
Chest tumors
Chest wall
Chest wall surgery
Diagnostic tests
Diagnostics
Diaphragm
Diaphragm surgery
Emphysema
Esophagus
Esophagus surgery
Fluid drainage
Heart lining
Lung surgery
Nerves
Pleural disease
Robotic surgery
Surgical approach
Sweat surgery
Transplant
Trauma
218 services · 150 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Harvest of vein using an endoscope | Procedure | 33508 |
22 | As often as other peers in Thoracic Surgery (Cardiothoracic) |
| Replacement of mitral valve on heart-lung machine | Procedure | 33430 |
22 | More often than most peers in Thoracic Surgery (Cardiothoracic) |
| Replacement of aortic valve on heart-lung machine | Procedure | 33405 |
19 | More often than most peers in Thoracic Surgery (Cardiothoracic) |
| Coronary artery bypass using artery graft, 1 graft | Procedure | 33533 |
15 | Less often than most peers in Thoracic Surgery (Cardiothoracic) |
| Anticoagulant management of patient taking warfarin | Treatment | 93793 |
80 | Too few peers to compare |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
43 | More often than most peers in Thoracic Surgery (Cardiothoracic) |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 | Less often than most peers in Thoracic Surgery (Cardiothoracic) |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Douglas R. Johnston is a thoracic surgery (cardiothoracic) in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Douglas R. Johnston is listed at 675 N Saint Clair St Ste 19-100, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (312) 649-3134. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Douglas R. Johnston's National Provider Identifier is 1790957991. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Douglas R. Johnston attended Harvard Medical School, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
Douglas R. Johnston has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Douglas R. Johnston performs procedures including harvest of vein using an endoscope, replacement of mitral valve on heart-lung machine and replacement of aortic valve on heart-lung machine; provides treatments such as anticoagulant management of patient taking warfarin, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Douglas R. Johnston. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.