Physician Profile
Unclaimed ProfileAbout Dr. Johnsen
Gregory D Johnsen, MD practices cardiovascular disease (cardiology) in Tulsa, OK. Gregory is a 1988 graduate of University of Oklahoma College of Medicine. Gregory is also listed as specializing in specialist and interventional cardiology. Medicare claims data shows Gregory provided 1,235 services to 1,172 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (918) 592-0999
- Email not available
Practice Locations
1265 S UTICA AVE SUITE 300
Tulsa, OK 74104
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease 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
Coronary and ischemic heart disease
- Acute coronary syndrome
- Coronary artery spasm
- Heart attack
- Microvascular angina
- Stable angina
- Stable coronary artery disease
Heart failure and cardiomyopathy
- Cardiac amyloidosis
- Dilated cardiomyopathy
- Heart failure
- Heart failure with preserved ejection fraction
- Heart failure with reduced ejection fraction
- Hypertrophic cardiomyopathy
- Myocarditis
- Pericardial effusion
- Pericarditis
- Restrictive cardiomyopathy
Heart rhythm
- Atrial fibrillation
- Atrial flutter
- Heart block
- Long QT syndrome
- Premature atrial contractions
- Premature ventricular contractions
- Slow heart rate (bradycardia)
- Supraventricular tachycardia
- Ventricular tachycardia
Symptoms and functional disorders
- Fainting and syncope
- Heart palpitations
- Orthostatic hypotension
- Postural orthostatic tachycardia syndrome
Valve and structural heart
- Aortic regurgitation
- Aortic stenosis
- Atrial septal defect
- Congenital heart disease
- Mitral regurgitation
- Mitral stenosis
- Mitral valve prolapse
- Patent foramen ovale
- Tricuspid regurgitation
Vascular and risk factors
- Aortic aneurysm
- Atherosclerosis
- Carotid artery disease
- Familial hypercholesterolemia
- High blood pressure (hypertension)
- High cholesterol and lipid disorders
- Peripheral artery disease
- Resistant hypertension
Procedures & services
Office and noninvasive testing
- Ambulatory blood-pressure monitoring
- Ambulatory heart-rhythm monitoring
- Cardiology consultation
- Electrocardiogram
- Exercise stress test
- Pharmacologic cardiac stress test
- Stress echocardiogram
- Transthoracic echocardiogram
Advanced imaging
Procedures Most Often Billed to Medicare
1,235 services · 1,172 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
358 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
82 |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
51 |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | Treatment | 93460 |
13 |
| Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Treatment | 92928 |
13 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | Treatment | 93459 |
11 |
| Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel | Treatment | 92978 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
438 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
72 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
70 |
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.
Other cardiovascular diseases at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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.
More connections — 30 related providers in 4 groups
Other cardiovascular diseases in Tulsa 7
Same specialty, same city.
Trained at University of Oklahoma College of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1988 at University of Oklahoma College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in OK who bill this service to Medicare most often.
Common questions
What is Dr. Johnsen's specialty?
Dr. Johnsen is a cardiovascular disease (cardiology) in Tulsa, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where can I find Dr. Johnsen?
Dr. Johnsen is listed at 1265 S UTICA AVE SUITE 300, Tulsa, OK 74104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Johnsen?
The number on file is (918) 592-0999. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Johnsen?
Dr. Johnsen's National Provider Identifier is 1710957105. 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
What is Dr. Johnsen's medical education?
Dr. Johnsen attended University of Oklahoma College of Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Johnsen have?
Dr. Johnsen has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Johnsen known for?
According to Medicare billing data, Dr. Johnsen provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Johnsen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnsen. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.