Matthew Anthony Diamond, MD

Medical Oncology Internal Medicine

Internal Medicine

Matthew Anthony Diamond is a Medical Oncology Internal Medicine specialist based in Newark, DE with over 7 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(302) 623-0188Newark, DE
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Matthew Anthony Diamond, MD specializes in internal medicine, serving patients in Newark, DE in independent practice. With 7+ years of experience, he has been practicing in the Newark area. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and ischemic_heart.

1 of 7 Internal Medicine providers in DESee all Internal Medicine in Newark7+ years experienceNPI since 2019

Older · 123dNPPES updated 2026-01-21 · verify NPI on CMS · Verify license at Delaware Board of Medical Licensure & Discipline

Contact & Location

Practice Location

4755 Ogletown Stanton Road Suite 5a43, Newark, DE 19718-2200

Fax: (302) 733-5640
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

20

Unique beneficiaries

Boutique practice

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 Ischemic Heart Disease.

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

Ischemic Heart Disease
65%

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

Diabetes
60%

A condition where the body cannot properly regulate blood sugar levels

Arthritis
60%

Joint inflammation causing pain, swelling, and stiffness

GeneralBehavioralNational avg

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

Industry Payment Transparency

$22 received from industry

1 transaction 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 Matthew Anthony Diamond's NPI.

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Background & Specialty

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

Career Journey
  1. Board certified · Jan 20, 2026

    Self-reported via NPPES

  2. 7 years in practice

    Established

Internal MedicineMedical Oncology in NewarkAllopathic & Osteopathic Physicians

Medical oncologists diagnose and treat cancer using chemotherapy, immunotherapy, targeted therapy, and hormone therapy. They coordinate care with surgical oncologists and radiation oncologists for comprehensive cancer treatment.

Taxonomy: 207RX0202X

Practice Footprint

Mailing address

1600 St Lukes Blvd, Easton, PA 18045-5671

Differs from practice location

Virtual Medical Oncology Care With Matthew Anthony Diamond

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

Schedule a virtual visit with Matthew Anthony Diamond for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Newark 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 Matthew Anthony Diamond

NPI records show Dr. Diamond as active with telehealth listed in Newark, DE. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (302) 623-0188.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · 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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