Dr. Mason Marcus, MD

  • Dallas, TX
  • Internist
NPI1003300617PAC ID8426306713
Part D claims, 2024
66
Publications
8
Clinical trials
10
Hospital affiliations
1
Industry payments
$7,840
Practice address
4500 S. Lancaster Road, Dallas, TX 75216
Practice phone
Call (214) 742-8387
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Dallas VA Medical Center

Hospital · Dallas, Texas

See all 2 affiliations

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Dr. Mason Marcus is an internist in Dallas, Texas

Dr. Marcus practices at Dallas VA Medical Center in Dallas, Texas, part of Veterans Health Administration.

Dr. Marcus' NPI, 1003300617, was assigned on June 18, 2018. Dr. Marcus graduated from University of Illinois College of Medicine - Chicago in 2018. Dr. Marcus holds Texas license T5387.

NPI and contact details
Medicare PAC ID
8426306713
NPI enumeration date
June 18, 2018
NPI status
Active
Practice phone
(214) 742-8387
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
2018

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

Dr. Mason Marcus practices at Dallas VA Medical Center in Dallas, Texas

Dr. Marcus' primary practice is Dallas VA Medical Center, at 4500 S. Lancaster Road, Dallas, TX 75216 in Dallas County. The practice phone is (214) 742-8387.

Source: Dmand AI Affiliation Data

Dr. Mason Marcus is affiliated with 1 site of care and 1 medical group

Dr. Marcus' primary practice is Dallas VA Medical Center in Dallas, Texas, part of Veterans Health Administration. The medical group on file is Lovelace Medical Group. Dr. Marcus' employer is on file too: a hospital.

See all 2 affiliations for Dr. Marcus

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

Dmand AI tracks the EHR system at Dr. Mason Marcus' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dallas VA Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mason Marcus is one of 8,437 internists in Texas

Internal medicine is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marcus is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Marcus' licenses on file in 2 states: Texas and Massachusetts.

Specialties and state licenses

  • Internal medicine, TexasPrimaryLicense T5387 · 2022 to 2027 · taxonomy 207R00000X
  • Student in an organized health care education/training program, MassachusettsLicense 276344 · 2018 to 2023 · taxonomy 390200000X

Internists near Dr. Marcus

Counts of internists 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. Mason Marcus' patients have a median age of 66

Across all payers, Dmand AI patient panel data puts Dr. Marcus' median patient age at 66, with 45% women.

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 66

Patient panel by sex, all payers

  • Women45%
  • Men55%

Source: Dmand AI Patient Panel Data

Dr. Mason Marcus wrote 66 Medicare Part D claims in 2024

In 2024, Dr. Marcus wrote 66 Medicare Part D claims for 33 patients. 85% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $50 in total drug cost. In 2023, CMS named 11 claims across 1 drug.

Part D claims, 202466
Drugs named by CMS1
Total drug cost$50
Part D patients33

Dr. Marcus' Part D claims by kind of drug, 2024

  • Generic56 claims85%
  • Brand-name and other10 claims15%

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.

Drug classes CMS tracks in Dr. Marcus' Part D claims, 2024

  • Antibiotics24%16 of 66 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: 112024: 1427%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. Marcus

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

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Dr. Mason Marcus has 8 publications on record

Dmand AI links 8 papers to Dr. Marcus, published from 2020 to 2025. 2024 was the busiest year, with 3. The most frequent topics are Arrhythmias, Cardiac, Defibrillators, Implantable and Patient Care Team. Dr. Marcus has published most often in Circulation. Dr. Marcus' most frequent co-authors are Mark Steven Link, MD, Brett Joseph Carroll, MD and Kevin M. Soriano, MD.

Papers8
Years published2020 to 2025

Dr. Marcus' papers by year, 2020 to 2025

Topics Dr. Marcus writes about most

  • Arrhythmias, Cardiac
  • Defibrillators, Implantable
  • Patient Care Team
  • Pulmonary Embolism

Dr. Marcus' most frequent co-authors

Recent publications by Dr. Marcus

See all 8 publications and co-authors

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 internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mason Marcus has worked on 10 clinical trials

Dmand AI links Dr. Marcus to 10 clinical trials, 4 of them phase 2 studies. 9 are still active or recruiting. Conditions studied include Adenocarcinoma of Lung, Biliary Atresia and Low Back Pain.

Clinical trials with Dr. Marcus by phase

  1. NonePhase 1: no trials
  2. 4Phase 2: 4 trials
  3. 1Phase 2/3: 1 trial
  4. NonePhase 3: no trials
  5. NonePhase 4: no trials

Trials with no phase (devices, behavioral studies) are left out.

Conditions in Dr. Marcus' trials

  • Adenocarcinoma of Lung
  • Biliary Atresia
  • Low Back Pain
  • Malocclusion
  • Muscular Atrophy

Investigators on the most trials with Dr. Marcus

Recent clinical trials with Dr. Marcus

See all 10 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Mason Marcus received $7,840 in industry payments from 2021 to 2025

CMS Open Payments shows 69 general payments to Dr. Marcus from 11 drug and device companies from 2021 to 2025. Travel and lodging make up the largest share, 60% of the total. Boston Scientific Corporation paid the most, $2,622.

General payments to Dr. Marcus by program year, 2021 to 2025

General payments to Dr. Marcus by kind, 2021 to 2025

$7.8Kin total
  • Travel and lodging$4,73260%
  • Food and beverage$2,48832%
  • Education$6208%

Companies that paid Dr. Marcus the most, 2021 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Marcus

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

Dr. Mason Marcus graduated from University of Illinois College of Medicine - Chicago

Dr. Marcus graduated from University of Illinois College of Medicine - Chicago in 2018.

  1. Medical schoolUniversity of Illinois College of Medicine - Chicago
  2. Board certified in cardiovascular diseaseAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mason Marcus accepts plans from 17 insurance carriers

Dr. Marcus is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • Elevance
  • HCSC
  • Regence Health Plans
  • +9 more carriersWith a free account

Plan types Dr. Marcus accepts, by number of carriers

  1. PPO11
  2. HMO9
  3. Medicare5
  4. POS5
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Mason Marcus'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 patients and the all-payer patient panelDmand AI Patient Panel Data
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Mason 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. Mason Marcus' NPI number?

Dr. Mason Marcus' NPI number is 1003300617. It was assigned on June 18, 2018, and it is active in the NPI Registry.

What kind of doctor is Dr. Mason Marcus?

Dr. Mason Marcus is an internist in Dallas, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Mason Marcus practice?

Dr. Marcus practices at 4500 S. Lancaster Road, Dallas, TX 75216. Dr. Marcus' primary practice is Dallas VA Medical Center in Dallas, Texas, part of Veterans Health Administration.

What is Dr. Mason Marcus' office phone number?

The practice phone on file for Dr. Marcus is (214) 742-8387.

What is Dr. Mason Marcus' medical license number?

Dr. Marcus holds Texas license T5387, one of the licenses on file in 2 states.

Which states has Dr. Mason Marcus been licensed in?

Dmand AI has state licenses on file for Dr. Marcus in Texas (2022 to 2027) and Massachusetts (2018 to 2023).

Which hospitals is Dr. Mason Marcus affiliated with?

Dr. Marcus practices at Dallas VA Medical Center in Dallas, Texas.

What medical group is Dr. Mason Marcus part of?

Dr. Marcus is linked to Lovelace Medical Group.

Is Dr. Mason Marcus board certified?

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

Where did Dr. Mason Marcus go to medical school?

Dr. Marcus graduated from University of Illinois College of Medicine - Chicago in 2018.

Show 6 more questionsShow fewer questions

What drugs does Dr. Mason Marcus prescribe most?

In 2024 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Cephalexin.

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

CMS Open Payments shows $7,840 in general payments to Dr. Marcus from 11 companies from 2021 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Mason Marcus been practicing?

Dr. Marcus graduated from medical school in 2018, 8 years ago.

Does Dr. Mason Marcus do research?

Dmand AI links 8 publications to Dr. Marcus, published from 2020 to 2025. Dr. Marcus has worked on 10 clinical trials.

Who does Dr. Mason Marcus publish with?

Dr. Marcus' most frequent co-authors are Mark Steven Link, MD (3 shared papers), Brett Joseph Carroll, MD (2 shared papers) and Kevin M. Soriano, MD (2 shared papers).

What insurance does Dr. Mason Marcus accept?

Dr. Marcus is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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