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Edit this profileAt a glance
- 600 N Wolfe Street Carnegie 568, Baltimore, MD 21287
About Dr. Johnston
Peter V. Johnston, MD practices interventional cardiology in Baltimore, MD. Peter is a 2000 graduate of University of Michigan Medical School. Peter is also listed as specializing in cardiovascular disease. According to Medicare claims data, Peter cared for 998 Medicare patients across 1,419 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and insertion of tube in coronary artery for diagnosis with review by radiologist. The provider's National Provider Identifier (NPI) is 1629128830.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 550-0849
- Email not available
Practice Locations
600 N WOLFE STREET CARNEGIE 568
Baltimore, MD 21287
Conditions Commonly Evaluated or Treated
Within Interventional Cardiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Artery blockages
- Aortic aneurysm
- Carotid Artery Blockage
- Completely Blocked Heart Artery
- Microvascular angina
- Re-Blocked Heart Stent
- Severely Calcified Heart Arteries
- Torn Heart Artery
Blood clots
Blood pressure
Chest symptoms
Circulation & veins
Coronary disease
Heart failure
Heart muscle
Heart muscle conditions
Heart rhythm
Heart rhythm & blood flow
Heart valves
Structural & congenital
Structural heart
Valve disease
Vascular disease
- Leg Cramps When Walking
- Narrow kidney artery
- Stomach Pain After Eating From Arteries
- Subclavian Steal Syndrome
Vein conditions
Procedures & services
Most searched procedures
- AFib ablation
- Angioplasty and stenting
- Cardiac catheterization
- Pacemaker implantation
- Watchman procedure
Artery procedures
- Atherectomy
- Carotid Artery Stent
- Drug-Coated Balloon Treatment
- Minimally Invasive Aneurysm Repair
- Opening Chronic 100% Blocked Heart Arteries
- Shockwave Plaque Busting In Heart Arteries
Blood pressure procedures
Circulation & limbs
Circulatory support
Clot procedures
- Catheter Blood Clot Removal From Legs
- Catheter Clot Dissolving Treatment
- IVC Filter Placement
- IVC Filter Removal
Coronary stenting
Diagnostic catheterization
Diagnostic tests
Diagnostics & monitoring
- Fractional flow reserve measurement
- Implantable Loop Recorder (Cardiac Monitor Implant)
- Intravascular ultrasound
Emergency heart procedures
Heart devices
Heart muscle
Heart support
Imaging & diagnostics
Stenting
Structural heart repair
Structural repair
Valve procedures
- Balloon Heart Valve Opening
- Leaky Artificial Heart Valve Repair
- Transcatheter aortic valve replacement
- Transcatheter mitral valve repair
- Transcatheter Pulmonary Valve Replacement
- TriClip Valve Repair
Valve replacement
Vein procedures
Procedures Most Often Billed to Medicare
1,419 services · 998 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of blood flow assist device in aorta through skin | Procedure | 33967 |
14 | Too few peers to compare |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
912 | More often than most peers in Interventional Cardiology |
| Insertion of tube in coronary artery for diagnosis with review by radiologist | Treatment | 93454 |
111 | More than most peers in Interventional Cardiology |
| Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Treatment | 92928 |
39 | More often than most peers in Interventional Cardiology |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
32 | As often as other peers in Interventional Cardiology |
| Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel | Treatment | 92978 |
30 | As often as other peers in Interventional Cardiology |
| Insertion of tube in right heart chambers for measurement | Treatment | 93451 |
27 | More often than most peers in Interventional Cardiology |
| Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | Treatment | 93244 |
16 | Less often than most peers in Interventional Cardiology |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
13 | Less often than most peers in Interventional Cardiology |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | Treatment | 93459 |
11 | Less often than most peers in Interventional Cardiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other interventional cardiologists in Baltimore 8
Same specialty, same city.
More connections — 20 related providers in 3 groups
Trained at University of Michigan Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at University of Michigan Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of blood flow assist device in aorta through skin 4
Providers in MD who bill this service to Medicare most often.
Common questions
What does Dr. Johnston specialize in?
Dr. Johnston is an interventional cardiologist in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Interventional Cardiology”.
NPI registry
Where is Dr. Johnston located?
Dr. Johnston is listed at 600 N Wolfe Street Carnegie 568, Baltimore, MD 21287. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johnston's phone number?
The number on file is (410) 550-0849. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Johnston's NPI number?
Dr. Johnston's National Provider Identifier is 1629128830. 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
Where did Dr. Johnston go to medical school?
Dr. Johnston attended University of Michigan Medical School, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Johnston been practicing?
Dr. Johnston has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Johnston do most often?
According to Medicare billing data, Dr. Johnston performs procedures including insertion of blood flow assist device in aorta through skin; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and insertion of tube in coronary artery for diagnosis with review by radiologist, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Johnston confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnston. If this is you, claiming it is free.
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