Erik Aron Holzwanger, M.D.
Gastroenterology Internal Medicine
Erik Aron Holzwanger is a Gastroenterology Internal Medicine specialist based in Boston, MA with over 12 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Erik Aron Holzwanger, M.D. has practiced internal medicine for 12+ years, working in group practice. He has been practicing since 2015 — over 12 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and kidney disease.
Older · 278dNPPES updated 2026-01-05 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine
How Does This Doctor Compare?
Medicare Patients
125
Unique beneficiaries
Standard volumePrescription Recipients
143
Patients prescribed
Prescriptions Written
205
Total claims
Total Medicare drug cost: $22k
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.
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 Chronic Kidney Disease.
High blood pressure — a leading risk factor for heart disease and stroke
Elevated cholesterol or triglycerides that increase heart disease risk
Gradual loss of kidney function over time, often linked to diabetes or hypertension
Joint inflammation causing pain, swelling, and stiffness
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
Excessive worry or fear that interferes with daily life
Conditions affecting emotional state, including depression and bipolar disorder
A condition where the body cannot properly regulate blood sugar levels
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$20.7k received from industry
28 transactions reported in 2024 ·High tier
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 Erik Aron Holzwanger's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Jan 4, 2026
Self-reported via NPPES
12 years in practice
Established
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Mailing address
65 Hamilton Ave, Haverhill, MA 01830-3313
Differs from practice location
Virtual Internal Medicine Care With Erik Aron Holzwanger
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Erik Aron Holzwanger for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Boston 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 Erik Aron Holzwanger
NPI records show Dr. Holzwanger as active with telehealth listed in Boston, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (617) 636-5000.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Erik Aron Holzwanger
Practice Location
800 Washington St, Boston, MA 02111-1552
Mailing Address
65 Hamilton Ave, Haverhill, MA 01830-3313
This is a provider directory. Contact the office directly to schedule appointments.
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