Brendan Michael De Marco, MD

Infectious Disease Internal Medicine

Internal Medicine

Brendan Michael De Marco is an Infectious Disease Internal Medicine specialist based in Saint Louis, MO with over 23 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(855) 751-8879Saint Louis, MO
Telehealth Available
NPI Active per CMS — Q3 2026|Medicare Enrolled|Order & Refer

With over 23 years in internal medicine, Brendan Michael De Marco, MD is a long-established infectious disease specialist in Saint Louis. He has been in practice for 23+ years. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data). CMS MIPS quality score: 95.75/100 (2023).

At a glance

  • Prescribes opioids less than 23% of reporting doctors in Missouri
  • Federal MIPS score higher than 89% of MIPS-scored doctors in Missouri
  • Virtual visits available — no app or travel required
1 of 48 Internal Medicine providers in MOSee all Internal Medicine in Saint Louis23+ years experienceNPI since 2006

Older · 473dNPPES updated 2025-04-09 · verify NPI on CMS · Verify license at Missouri Board of Registration for the Healing Arts

Contact & Location

Practice Location

2653 Locust St, Saint Louis, MO 63103-1411

Fax: (833) 529-0574
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor scores better than 89% of doctors in Missouri on federal quality measures, prescribes opioid pain medications conservatively.

MIPS Score

2023

95.75/100

Missouri avg: 81.2 · US avg: 83.6

Higher than most doctors nationally(+12.2 pts)

Better than 89% of MIPS-scored doctors in Missouri

How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.

Opioid Rx

↓ Lower = better

4.01%

Missouri avg: 4.4 · US avg: 5.1

Higher than most doctors nationally(-1.1 pts)

4.01% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

65%

Missouri avg: 83.4 · US avg: 82.8

Lower than most doctors nationally(-17.8 pts)

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

34

Unique beneficiaries

Boutique practice

Prescription Recipients

143

Patients prescribed

Prescriptions Written

2,667

Total claims

Total Medicare drug cost: $2.81M

Percentile rankings compared against 912 reporting peers in Missouri.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Arthritis
Higher than avg (+19%)68%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+19%) — a focus area for this doctor

Chronic Kidney Disease
Higher than avg (+23%)53%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↑ More patients than average (+23%) — a focus area for this doctor

Depression
Higher than avg (+18%)50%

A mood disorder causing persistent sadness and loss of interest in activities

US avg: 31.8%

↑ More patients than average (+18%) — a focus area for this doctor

Mood Disorders
50%

Conditions affecting emotional state, including depression and bipolar disorder

Diabetes
Higher than avg (+13%)47%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+13%) — a focus area for this doctor

Anxiety Disorders
Higher than avg (+13%)47%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↑ More patients than average (+13%) — a focus area for this doctor

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$42 received from industry

2 transactions reported in 2024 ·Low tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Brendan Michael De Marco's NPI.

Patient Reviews

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Board certified · Apr 8, 2025

    Self-reported via NPPES

  2. 23 years in practice

    Experienced

Internal MedicineInfectious Disease in Saint LouisAllopathic & Osteopathic Physicians

Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, antibiotic-resistant infections (MRSA), post-surgical infections, and travel-related illnesses. They also provide pre-travel vaccination counseling and manage infections in immunocompromised patients.

Taxonomy: 207RI0200X

Practice Footprint

Mailing address

Po Box 17366, Austin, TX 78760-7366

Differs from practice location

Virtual Infectious Disease Care With Brendan Michael De Marco

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Brendan Michael De Marco for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Saint Louis required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Brendan Michael De Marco

Dr. De Marco is listed as active in the NPI registry with telehealth listed in Saint Louis, MO. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (855) 751-8879.

Verified across 6 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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