Henry John Leonard Van Dyk, MD

Internal Medicine

Henry John Leonard Van Dyk is an Internal Medicine specialist based in Tuba City, AZ with over 37 years of clinical experience. Offers virtual telehealth visits.

(928) 283-2501Tuba City, AZ
Telehealth Available
NPI Active per CMS — Q2 2026

Henry John Leonard Van Dyk, MD has been part of the Tuba City medical community since 2006 in group practice. A Louisiana State University School of Medicine in New Orleans graduate since 1989, he brings 37+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and diabetes.

1 of 385 Internal Medicine providers in AZSee all Internal Medicine in Tuba City37+ years experienceNPI since 2006

Older · 6894dNPPES updated 2007-07-08 · verify NPI on CMS · Verify license at Arizona Medical Board

Contact & Location

Practice Location

167 N Main St, Tuba City, AZ 86045-0600

Fax: (928) 283-2677
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
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
70%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%
Diabetes
Higher than avg (+27%)61%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+27%) — a focus area for this doctor

Arthritis
Higher than avg (+5%)54%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

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

Chronic Kidney Disease
Lower than avg (-4%)26%

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

US avg: 29.6%

↓ Fewer patients than average (-4%) — less common here

Ischemic Heart Disease
Lower than avg (-10%)22%

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

US avg: 31.7%

↓ Fewer patients than average (-10%) — less common here

Osteoporosis
Higher than avg (+2%)20%

Weakened bones that are more prone to fractures, common in older adults

US avg: 18.1%

↑ More patients than average (+2%) — 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 · 1989

    Louisiana State University School of Medicine in New Orleans

  2. 37 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

Louisiana State University School of Medicine in New Orleans (Class of 1989)

Practice Footprint

Mailing address

Po Box 600 167 North Main Street, Tuba City, AZ 86045-0600

Differs from practice location

Virtual Internal Medicine Care With Henry John Leonard Van Dyk

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

Schedule a virtual visit with Henry John Leonard Van Dyk for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Tuba City required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Henry John Leonard Van Dyk

Dr. Van Dyk is listed as active in the NPI registry with telehealth listed in Tuba City, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (928) 283-2501.

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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