Stephen W Marer, MD

Infectious Disease Internal Medicine

Internal Medicine

Stephen W Marer is an Infectious Disease Internal Medicine specialist based in Los Angeles, CA with over 32 years of clinical experience. Offers virtual telehealth visits.

(323) 442-5100Los Angeles, CA
Telehealth Available
NPI Active per CMS — Q2 2026

With over 32 years in internal medicine, Stephen W Marer, MD is a long-established infectious disease specialist in Los Angeles. Trained at University of California, Davis School of Medicine (class of 1994), he has been practicing for over 32 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).

1 of 284 Internal Medicine providers in CASee all Internal Medicine in Los Angeles32+ years experienceNPI since 2006

Older · 1298dNPPES updated 2022-11-03 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

1520 San Pablo St Ste 1000, Los Angeles, CA 90033-5312

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
75%

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

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Arthritis
57%

Joint inflammation causing pain, swelling, and stiffness

Diabetes
56%

A condition where the body cannot properly regulate blood sugar levels

Chronic Kidney Disease
45%

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

Heart Failure
45%

The heart cannot pump blood efficiently enough to meet the body's needs

Ischemic Heart Disease
42%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Depression
35%

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

GeneralBehavioralNational avg

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

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 1994

    University of California, Davis School of Medicine

  2. Board certified · Nov 2, 2022

    Self-reported via NPPES

  3. 32 years in practice

    Senior practitioner

Internal MedicineInfectious Disease in Los AngelesAllopathic & 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

Education & Training

University of California, Davis School of Medicine (Class of 1994)

Practice Footprint

Mailing address

Po Box 31309, Los Angeles, CA 90031-0309

Differs from practice location

Virtual Infectious Disease Care With Stephen W Marer

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

Schedule a virtual visit with Stephen W Marer for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Los Angeles required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Stephen W Marer

NPI records show Dr. Marer as active with telehealth listed in Los Angeles, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (323) 442-5100.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · 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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