Greg S Swartzentruber, MD

Medical Toxicology Emergency Medicine

Emergency Medicine

Greg S Swartzentruber is a Medical Toxicology Emergency Medicine specialist based in Harrisburg, PA with over 17 years of clinical experience. Offers virtual telehealth visits.

(717) 988-0000Harrisburg, PA
Telehealth Available
NPI Active per CMS — Q2 2026

Greg S Swartzentruber, MD has practiced emergency medicine for 17+ years, working in group practice. A Pennsylvania State University College of Medicine graduate since 2009, he brings 17+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis.

At a glance

  • Uses generic medications more than 35% of reporting doctors in Pennsylvania
  • Virtual visits available — no app or travel required
17+ years experienceNPI since 2009

Older · 3342dNPPES updated 2017-03-30 · verify NPI on CMS · Verify license at Pennsylvania State Board of Medicine

Contact & Location

Practice Location

111 S Front St, Harrisburg, PA 17101-2010

Fax: (717) 782-5716
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 (+2%)72%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+2%) — a focus area for this doctor

Arthritis
Higher than avg (+4%)53%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+4%) — a focus area for this doctor

Chronic Kidney Disease
Higher than avg (+15%)45%

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

US avg: 29.6%

↑ More patients than average (+15%) — a focus area for this doctor

Anxiety Disorders
Higher than avg (+11%)45%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↑ More patients than average (+11%) — a focus area for this doctor

Mood Disorders
43%

Conditions affecting emotional state, including depression and bipolar disorder

Substance Use Disorders
40%

Problematic patterns of drug or alcohol use leading to health issues

Ischemic Heart Disease
Higher than avg (+5%)37%

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

US avg: 31.7%

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

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 · 2009

    Pennsylvania State University College of Medicine

  2. 17 years in practice

    Experienced

Emergency MedicineMedical Toxicology in HarrisburgAllopathic & Osteopathic Physicians

Medical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings and environmental and workplace exposures.

Taxonomy: 207PT0002X

Education & Training

Pennsylvania State University College of Medicine (Class of 2009)

Practice Footprint

Mailing address

409 S 2nd St Suite 2f, Harrisburg, PA 17104-1612

Differs from practice location

Virtual Medical Toxicology Care With Greg S Swartzentruber

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

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

Frequently Asked Questions

Common questions about Greg S Swartzentruber

NPI records show Dr. Swartzentruber as active with telehealth listed in Harrisburg, PA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (717) 988-0000.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · 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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