Dr. Marshall Bernard Marcus, MD
- Medicare services, 2024
- 2,000
- Medicare patients, 2024
- 647
- Part D claims, 2024
- 949
- Publications
- 3
- MIPS score, 2024
- 87
- Practice address
- 6006 49th St N Suite 200 Suite 200, Saint Petersburg, FL 33709-2149
- Practice phone
- Call (727) 490-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Heart Institute
Multi-specialty group site · Saint Petersburg, Florida
Find Dr. Marcus' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Marshall Bernard Marcus is a cardiac electrophysiologist in Saint Petersburg, Florida
Dr. Marcus practices at The Heart Institute in Saint Petersburg, Florida.
Dr. Marcus' NPI, 1609160563, was assigned on June 7, 2011. Dr. Marcus graduated from Tel Aviv University Sackler in 2011. Dr. Marcus holds Florida license ME122508.
- NPI
- 1609160563NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810126240
- NPI enumeration date
- June 7, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (727) 490-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marshall Bernard Marcus practices at The Heart Institute in Saint Petersburg, Florida
Dr. Marcus' primary practice is The Heart Institute, at 6006 49th St N Suite 200 Suite 200, Saint Petersburg, FL 33709-2149. The practice phone is (727) 490-2100.
- The Heart Institute6006 49th St N Suite 200 Suite 200, Saint Petersburg, FL 33709-2149Phone(727) 490-2100
Source: Dmand AI Affiliation Data
Dr. Marshall Bernard Marcus is affiliated with 3 sites of care and 1 medical group
Dr. Marcus' primary practice is The Heart Institute in Saint Petersburg, Florida. Dr. Marcus is also affiliated with BayCare St. Anthony's Hospital. The medical group on file is HCA Florida Heart Institute - Northside. Dmand AI also links Dr. Marcus to 1 more hospital, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Marshall Bernard Marcus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Heart Institute | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marshall Bernard Marcus is one of 236 cardiac electrophysiologists in Florida
Clinical cardiac electrophysiology is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 207RC0001X. Dr. Marcus is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Marcus' licenses on file in 3 states: Florida, Maryland and New York.
Specialties and state licenses
- Clinical cardiac electrophysiology, FloridaPrimary
- Internal medicine, Maryland
- New York license
Clinical focus
Dmand AI lists aneurysm, angioplasty, atrial fibrillation and flutter, cardiac arrhythmia, cardiomyopathy, cerebrovascular disease, chronic hypertension and coronary artery disease among the conditions Dr. Marcus treats.
Cardiac electrophysiologists near Dr. Marcus
Counts of cardiac electrophysiologists 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. Marshall Bernard Marcus billed Medicare for 2,000 services in 2024
CMS data shows 2,000 Medicare services from Dr. Marcus across 25 procedure codes in 2024, for 647 Medicare patients. Medicare paid $117,577 for them.
Dr. Marcus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,4442024: 1,4073%
- Office and hospital visits
- 2023: 5292024: 5799%
- Surgery
- 2023: 132024: 148%
- Other services
- 2023: 862024: 0100%
Where Dr. Marcus' Medicare services took place, 2024
- In an office1,65283%
- In a facility34817%
Dr. Marcus compared with the Florida median for cardiac electrophysiologists, 2024
- Dr. Marcus
- Florida median
- Medicare services
- 2,000vs 3,33440% below
- Medicare patients
- 647vs 87526% below
- Part D claims
- 795vs 1,04324% below
Medians across 233 cardiac electrophysiologists in Florida with Dmand AI profiles that report each measure.
Dr. Marcus' 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.
Need commercial claims for Dr. Marcus?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marcus and other cardiac electrophysiologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marshall Bernard Marcus treated 647 Medicare patients in 2024, average age 79
CMS counts 647 Medicare patients who saw Dr. Marcus in 2024. The largest group is 75 to 84, with 265 patients. 75% of them have atrial fibrillation, and 75% have high blood pressure. 13% are also on Medicaid. Their average risk score is 2.09, 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. Marcus' median patient age at 76, with 47% women.
Dr. Marcus' Medicare patients by age, 2024
Dr. Marcus' Medicare patients by sex, 2024
- Women29445%
- Men35355%
Chronic conditions among Dr. Marcus' Medicare patients, 2024
- Atrial fibrillation75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease61%
- Heart failure51%
- Arthritis50%
- Chronic kidney disease47%
- Diabetes36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marcus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marshall Bernard Marcus wrote 949 Medicare Part D claims in 2024
In 2024, Dr. Marcus wrote 949 Medicare Part D claims for 214 patients. 64% of them were for generic drugs. CMS names the drug for 795 of them, across 21 drugs with 11 or more claims each, at $448,726 in total drug cost. In 2023, CMS named 668 claims across 18 drugs.
Dr. Marcus' Part D claims by kind of drug, 2024
- Generic612 claims64%
- Brand-name337 claims36%
Dr. Marcus' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6682024: 79519%
Drugs named by CMS: 21 in 2024, 18 in 2023.
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. Marshall Bernard Marcus scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Marcus for performance year 2024, reported as part of a group. Dr. Marcus accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 28 procedures of pacemaker insertion or repair by Dr. Marcus, more than 77% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Marcus' MIPS scores, performance year 2024
- 87of 100Final score
- 73.6of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Marcus ranks in Medicare procedure volume
- Pacemaker insertion or repair
- 77th percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. Marshall Bernard Marcus has 3 publications on record
Dmand AI links 3 papers to Dr. Marcus, published from 2012 to 2019. Dr. Marcus' most frequent co-authors are Bengt Herweg, MD, Amit Malhotra, MD and Stavros E. Mountantonakis, MD.
Dr. Marcus' most frequent co-authors
- Bengt Herweg, MD1 shared paper
- Amit Malhotra, MD1 shared paper
- Stavros E. Mountantonakis, MD1 shared paper
Recent publications by Dr. Marcus
Eur Radiol
See who Dr. Marcus researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marcus works with, so you can find a warm path to the right cardiac electrophysiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marshall Bernard Marcus received $117,417 in industry payments from 2016 to 2025
CMS Open Payments shows 1,199 general payments to Dr. Marcus from 52 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 45% of the total. Biotronik Inc. paid the most, $65,220.
General payments to Dr. Marcus by program year, 2016 to 2025
General payments to Dr. Marcus by kind, 2016 to 2025
- Travel and lodging$52,59145%
- Food and beverage$44,76238%
- Grants$15,00013%
- Education$2,3372%
- Other$2,5612%
Companies that paid Dr. Marcus the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marshall Bernard Marcus graduated from Tel Aviv University Sackler
Dr. Marcus graduated from Tel Aviv University Sackler in 2011.
- Medical school
- Board certified in cardiovascular disease
- Board certified in clinical cardiac electrophysiology
Source: Dmand AI Professional Profile Data
Dr. Marshall Bernard Marcus accepts plans from 18 insurance carriers
Dr. Marcus is in network with 18 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Humana
- +10 more carriersWith a free account
Plan types Dr. Marcus accepts, by number of carriers
- Medicare12
- PPO12
- HMO11
- POS6
- EPO5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Marshall Bernard Marcus's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Marshall Bernard Marcus
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. Marshall Bernard Marcus' NPI number?
Dr. Marshall Bernard Marcus' NPI number is 1609160563. It was assigned on June 7, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Marshall Bernard Marcus?
Dr. Marshall Bernard Marcus is a cardiac electrophysiologist in Saint Petersburg, Florida. The primary specialty in the NPI Registry is Clinical Cardiac Electrophysiology Physician (taxonomy code 207RC0001X).
Where does Dr. Marshall Bernard Marcus practice?
Dr. Marcus practices at 6006 49th St N Suite 200 Suite 200, Saint Petersburg, FL 33709-2149. Dr. Marcus' primary practice is The Heart Institute in Saint Petersburg, Florida. Dmand AI also links Dr. Marcus to 1 hospital.
What is Dr. Marshall Bernard Marcus' office phone number?
The practice phone on file for Dr. Marcus is (727) 490-2100.
What is Dr. Marshall Bernard Marcus' medical license number?
Dr. Marcus holds Florida license ME122508, one of the licenses on file in 3 states.
Which states has Dr. Marshall Bernard Marcus been licensed in?
Dmand AI has state licenses on file for Dr. Marcus in Florida (2014 to 2027), Maryland and New York (2018 to 2021).
Which hospitals is Dr. Marshall Bernard Marcus affiliated with?
Dr. Marcus is affiliated with BayCare St. Anthony's Hospital. Dmand AI links Dr. Marcus to 1 more hospital.
What medical group is Dr. Marshall Bernard Marcus part of?
Dr. Marcus is linked to HCA Florida Heart Institute - Northside.
Does Dr. Marshall Bernard Marcus accept Medicare?
Yes. CMS data shows Dr. Marcus billed Medicare for 2,000 services in 2024, and Dr. Marcus accepts Medicare assignment.
What is Dr. Marshall Bernard Marcus' MIPS score?
Dr. Marcus' MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Marshall Bernard Marcus see?
CMS counts 647 Medicare patients who saw Dr. Marcus in 2024, with an average age of 79.
Is Dr. Marshall Bernard Marcus board certified?
Yes. Dr. Marcus is board certified in cardiovascular disease by the American Board of Internal Medicine.
What services does Dr. Marshall Bernard Marcus bill to Medicare?
In 2024, Dr. Marcus' most billed Medicare services were heart test or procedure (93296), heart test or procedure (93294) and office visit, established patient (99214).
Where did Dr. Marshall Bernard Marcus go to medical school?
Dr. Marcus graduated from Tel Aviv University Sackler in 2011.
What drugs does Dr. Marshall Bernard Marcus prescribe most?
In 2024 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Eliquis, Metoprolol Succinate and Xarelto.
Has Dr. Marshall Bernard Marcus received payments from drug or device companies?
CMS Open Payments shows $117,417 in general payments to Dr. Marcus from 52 companies from 2016 to 2025. The largest total came from Biotronik Inc.
How long has Dr. Marshall Bernard Marcus been practicing?
Dr. Marcus graduated from medical school in 2011, 15 years ago.
Does Dr. Marshall Bernard Marcus do research?
Dmand AI links 3 publications to Dr. Marcus, published from 2012 to 2019.
Who does Dr. Marshall Bernard Marcus publish with?
Dr. Marcus' most frequent co-authors are Bengt Herweg, MD (1 shared paper), Amit Malhotra, MD (1 shared paper) and Stavros E. Mountantonakis, MD (1 shared paper).
What insurance does Dr. Marshall Bernard Marcus accept?
Dr. Marcus is in network with 18 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 12. Check the plan with the practice before a visit.
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