Nadim T Zyadeh, MD

Gastroenterology Internal Medicine

Nadim T Zyadeh is a Gastroenterology Internal Medicine specialist based in Phoenix, AZ with over 30 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

(602) 973-6666Phoenix, AZ
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Nadim T Zyadeh, MD has been part of the Phoenix medical community since 2005 in group practice. With 30+ years of experience, he has been practicing in the Phoenix area. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and diabetes.

1 of 122 Internal Medicine providers in AZSee all Internal Medicine in Phoenix30+ years experienceNPI since 2005

Older · 124dNPPES updated 2026-01-22 · verify NPI on CMS · Verify license at Arizona Medical Board

Contact & Location

Practice Location

5815 N Black Canyon Hwy Ste 101, Phoenix, AZ 85015-2200

Fax: (602) 812-3395
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

83

Unique beneficiaries

Standard volume

Prescription Recipients

412

Patients prescribed

Prescriptions Written

1,025

Total claims

Total Medicare drug cost: $239k

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 Diabetes.

Hypertension
75%

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

High Cholesterol
69%

Elevated cholesterol or triglycerides that increase heart disease risk

Diabetes
47%

A condition where the body cannot properly regulate blood sugar levels

Arthritis
40%

Joint inflammation causing pain, swelling, and stiffness

Chronic Kidney Disease
24%

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

Anxiety Disorders
22%

Excessive worry or fear that interferes with daily life

Mood Disorders
22%

Conditions affecting emotional state, including depression and bipolar disorder

Ischemic Heart Disease
20%

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

GeneralBehavioralNational avg

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

Industry Payment Transparency

$648 received from industry

31 transactions reported in 2024 ·Moderate 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 Nadim T Zyadeh'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 21, 2026

    Self-reported via NPPES

  2. 30 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

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

Virtual Internal Medicine Care With Nadim T Zyadeh

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

Schedule a virtual visit with Nadim T Zyadeh for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Phoenix 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 Nadim T Zyadeh

Dr. Zyadeh is listed as active in the NPI registry with telehealth listed in Phoenix, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (602) 973-6666.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · 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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