Physician Profile
Marcus St John, MD
Unclaimed ProfileAbout Dr. St John
Based in Miami, FL, Marcus St John, MD is listed in the NPI registry under interventional cardiology. Marcus graduated from Harvard Medical School in 1997. Medicare claims data shows Marcus provided 2,119 services to 1,560 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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (305) 412-3558
- Email not available
Practice Locations
8950 N KENDALL DR STE 501
Miami, FL 33176
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
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
2,119 services · 1,560 patients · 17 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
42 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
41 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
409 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
217 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
57 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
48 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Treatment | 93015 |
44 |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
31 |
| Electrocardiogram (ecg) 2-day continuous | Treatment | 93225 |
23 |
| Electrocardiogram (ecg) 2-day continuous with review by health care professional | Treatment | 93227 |
21 |
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 3
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 cardiology specialists in Miami 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in FL who bill this service to Medicare most often.
Common questions
What does Dr. St John specialize in?
Dr. St John is an interventional cardiology in Miami, FL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERVENTIONAL CARDIOLOGY”.
NPI registry
Where is Dr. St John located?
Dr. St John is listed at 8950 N KENDALL DR STE 501, Miami, FL 33176. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. St John's phone number?
The number on file is (305) 412-3558. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. St John?
Dr. St John's National Provider Identifier is 1073510269. 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. St John go to medical school?
Dr. St John attended Harvard Medical School, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. St John have?
Dr. St John has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Dr. St John do most often?
According to Medicare billing data, Dr. St John performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. St John's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. St John. 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.