Dr. Marcus St John, MD

  • Miami, FL
  • Interventional cardiologist
NPI1073510269PAC ID0143289132
Medicare services, 2024
2,119
Medicare patients, 2024
845
Part D claims, 2024
6,099
MIPS score, 2024
99
Hospital affiliations
5
Practice address
8900 N Kendall Dr, Miami, FL 33176
Practice phone
Call (786) 596-1960
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Baptist Health Baptist Hospital

Hospital · Miami, Florida

See all 14 affiliations

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Dr. Marcus St John is an interventional cardiologist in Miami, Florida

Dr. St John practices at Baptist Health Baptist Hospital in Miami, Florida, part of Baptist Health South Florida.

Dr. St John's NPI, 1073510269, was assigned on July 1, 2005. Dr. St John graduated from Harvard Medical School in 1997. Dr. St John holds Florida license ME90609.

NPI and contact details
Medicare PAC ID
0143289132
NPI enumeration date
July 1, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(786) 596-1960
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
55
Medical school graduation
1997

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Marcus St John practices at Baptist Health Baptist Hospital in Miami, Florida

Dr. St John's primary practice is Baptist Health Baptist Hospital, at 8900 N Kendall Dr, Miami, FL 33176 in Miami-Dade County. The practice phone is (786) 596-1960.

Source: Dmand AI Affiliation Data

Dr. Marcus St John is affiliated with 10 sites of care and 4 medical groups

Dr. St John's primary practice is Baptist Health Baptist Hospital in Miami, Florida, part of Baptist Health South Florida. Dr. St John is also affiliated with South Miami Hospital. The medical group on file is Baptist Health Medical Group. Dmand AI also links Dr. St John to 3 more hospitals, 4 group practices and clinics, 3 medical groups and 1 breast imaging center, each named with a free account.

See all 14 affiliations for Dr. St John

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Marcus St John's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. St John practices, 10 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Baptist Health Baptist HospitalAvailable with a free account
+9 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Marcus St John is one of 585 interventional cardiologists in Florida

Interventional cardiology is Dr. St John's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. St John is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. St John's licenses on file in 2 states: Florida and Maryland.

Specialties and state licenses

  • Interventional cardiology, FloridaPrimaryLicense ME90609 · 2004 to 2026 · taxonomy 207RI0011X
  • Maryland license2004 to 2011

Clinical focus

Dmand AI lists angioplasty and cardiac catheterization among the conditions Dr. St John treats.

Interventional cardiologists near Dr. St John

Counts of interventional cardiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Marcus St John billed Medicare for 2,119 services in 2024

CMS data shows 2,119 Medicare services from Dr. St John across 16 procedure codes in 2024, for 845 Medicare patients. Medicare paid $115,893 for them.

Medicare services, 20242,119
Medicare patients845
Paid by Medicare$115,893
Procedure codes16

Dr. St John's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 9652024: 85012%
Office and hospital visits
2023: 5742024: 5862%
Other services
2023: 372024: 4721176%
Drugs given in the office
2023: 482024: 128167%
Surgery
2023: 382024: 4211%
Imaging
2023: 172024: 41141%

Where Dr. St John's Medicare services took place, 2024

  • In an office1,56874%
  • In a facility55126%

Dr. St John compared with the Florida median for interventional cardiologists, 2024

  • Dr. St John
  • Florida median
Medicare services
2,119vs 2,52416% below
Medicare patients
845vs 7808% above
Part D claims
5,772vs 1,9622.9 times

Medians across 578 interventional cardiologists in Florida with Dmand AI profiles that report each measure.

Dr. St John's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. St John

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Marcus St John treated 845 Medicare patients in 2024, average age 77

CMS counts 845 Medicare patients who saw Dr. St John in 2024. The largest group is 75 to 84, with 323 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.95, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. St John's median patient age at 70, with 48% women.

Medicare patients, 2024845
Average age77
Average risk score1.95
Also on Medicaid26%

Dr. St John's Medicare patients by age, 2024

Dr. St John's Medicare patients by sex, 2024

  • Women43852%
  • Men40748%

Chronic conditions among Dr. St John's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease70%
  4. Arthritis57%
  5. Diabetes44%
  6. Chronic kidney disease41%
  7. Atrial fibrillation33%
  8. Heart failure33%

Share of Medicare patients with each condition. A patient can have several.

Dr. St John's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women48%
  • Men51%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Marcus St John wrote 6,099 Medicare Part D claims in 2024

In 2024, Dr. St John wrote 6,099 Medicare Part D claims for 792 patients. 83% of them were for generic drugs. CMS names the drug for 5,772 of them, across 48 drugs with 11 or more claims each, at $1,186,975 in total drug cost. In 2023, CMS named 5,473 claims across 55 drugs.

Part D claims, 20246,099
Drugs named by CMS48
Total drug cost$1.2M
Part D patients792

Dr. St John's Part D claims by kind of drug, 2024

  • Generic5,090 claims83%
  • Brand-name1,009 claims17%

Dr. St John's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. St John's Part D claims, 2024

  • Antibiotics0%12 of 6,099 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 5,4732024: 5,7725%

Drugs named by CMS: 48 in 2024, 55 in 2023.

See all prescribing by Dr. St John

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Marcus St John scored 99 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. St John for performance year 2024, reported through an alternative payment model (APM). Dr. St John accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. St John as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. St John's MIPS scores, performance year 2024

  • 99of 100Final score
  • 81.9of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Marcus St John received $47,594 in industry payments from 2016 to 2025

CMS Open Payments shows 317 general payments to Dr. St John from 44 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 51% of the total. Philips Electronics North America Corporation paid the most, $18,537.

General payments to Dr. St John by program year, 2016 to 2025

General payments to Dr. St John by kind, 2016 to 2025

$47.6Kin total
  • Travel and lodging$24,32251%
  • Food and beverage$11,81925%
  • Speaker and faculty fees$5,87512%
  • Consulting fees$5,32511%
  • Education$2531%

Companies that paid Dr. St John the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. St John

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Marcus St John has 1 award and honors on record

Dmand AI lists 1 award for Dr. St John, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. St John

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Marcus St John graduated from Harvard Medical School

Dr. St John graduated from Harvard Medical School in 1997. Dr. St John is a member of ACC.

  1. Medical schoolHarvard Medical School
  2. Board certified in cardiovascular diseaseAmerican Board of Internal Medicine
  3. Board certified in interventional cardiologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Marcus St John accepts plans from 12 insurance carriers

Dr. St John is in network with 12 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.

Plan types Dr. St John accepts, by number of carriers

  1. HMO7
  2. PPO7
  3. Medicare6
  4. POS5
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Marcus St John's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Marcus St John

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Marcus St John's NPI number?

Dr. Marcus St John's NPI number is 1073510269. It was assigned on July 1, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Marcus St John?

Dr. Marcus St John is an interventional cardiologist in Miami, Florida. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).

Where does Dr. Marcus St John practice?

Dr. St John practices at 8900 N Kendall Dr, Miami, FL 33176. Dr. St John's primary practice is Baptist Health Baptist Hospital in Miami, Florida, part of Baptist Health South Florida. Dmand AI also links Dr. St John to 3 hospitals, 4 group practices and clinics, 3 medical groups and 1 breast imaging center.

What is Dr. Marcus St John's office phone number?

The practice phone on file for Dr. St John is (786) 596-1960.

What is Dr. Marcus St John's medical license number?

Dr. St John holds Florida license ME90609, one of the licenses on file in 2 states.

Which states has Dr. Marcus St John been licensed in?

Dmand AI has state licenses on file for Dr. St John in Florida (2004 to 2026) and Maryland (2004 to 2011).

Which hospitals is Dr. Marcus St John affiliated with?

Dr. St John practices at Baptist Health Baptist Hospital in Miami, Florida. Dr. St John is also affiliated with South Miami Hospital. Dmand AI links Dr. St John to 3 more hospitals.

What medical group is Dr. Marcus St John part of?

Dr. St John is linked to Baptist Health Medical Group. Dmand AI links Dr. St John to 3 more medical groups.

Does Dr. Marcus St John accept Medicare?

Yes. CMS data shows Dr. St John billed Medicare for 2,119 services in 2024, and Dr. St John accepts Medicare assignment.

Does Dr. Marcus St John offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. St John as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Dr. Marcus St John's MIPS score?

Dr. St John's MIPS final score for performance year 2024 is 99 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Marcus St John see?

CMS counts 845 Medicare patients who saw Dr. St John in 2024, with an average age of 77.

Is Dr. Marcus St John board certified?

Yes. Dr. St John is board certified in cardiovascular disease by the American Board of Internal Medicine.

What services does Dr. Marcus St John bill to Medicare?

In 2024, Dr. St John's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93010) and medicare service (G2211).

Where did Dr. Marcus St John go to medical school?

Dr. St John graduated from Harvard Medical School in 1997.

What drugs does Dr. Marcus St John prescribe most?

In 2024 Medicare Part D data, Dr. St John's most prescribed drugs by claims were Rosuvastatin Calcium, Atorvastatin Calcium and Metoprolol Succinate.

Has Dr. Marcus St John received payments from drug or device companies?

CMS Open Payments shows $47,594 in general payments to Dr. St John from 44 companies from 2016 to 2025. The largest total came from Philips Electronics North America Corporation.

How long has Dr. Marcus St John been practicing?

Dr. St John graduated from medical school in 1997, 29 years ago.

What insurance does Dr. Marcus St John accept?

Dr. St John is in network with 12 carriers, including Aetna, Elevance and United Healthcare. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.

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