Marvin Ryou, M.D.

Gastroenterology Internal Medicine

Marvin Ryou is a Gastroenterology Internal Medicine specialist based in Boston, MA with over 23 years of clinical experience. Offers virtual telehealth visits.

(617) 732-5500Boston, MA
Telehealth Available
NPI Active per CMS — Q2 2026

Marvin Ryou, M.D. practices as part of a group gastroenterologist practice in Boston, MA. He graduated from Harvard Medical School in 2003 and has 23+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).

1 of 261 Internal Medicine providers in MASee all Internal Medicine in Boston23+ years experienceNPI since 2006

Older · 5060dNPPES updated 2012-07-19 · verify NPI on CMS · Verify license at Massachusetts Board of Registration in Medicine

Contact & Location

Practice Location

75 Francis St Asbii, Boston, MA 02115-6110

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
75%

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

High Cholesterol
71%

Elevated cholesterol or triglycerides that increase heart disease risk

Arthritis
51%

Joint inflammation causing pain, swelling, and stiffness

Anxiety Disorders
38%

Excessive worry or fear that interferes with daily life

Mood Disorders
35%

Conditions affecting emotional state, including depression and bipolar disorder

Ischemic Heart Disease
32%

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

Cancer
32%

Diseases involving abnormal cell growth with potential to spread to other body parts

Depression
32%

A mood disorder causing persistent sadness and loss of interest in activities

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 · 2003

    Harvard Medical School

  2. 23 years in practice

    Experienced

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

Education & Training

Harvard Medical School (Class of 2003)

Virtual Internal Medicine Care With Marvin Ryou

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

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

Frequently Asked Questions

Common questions about Marvin Ryou

Dr. Ryou is listed as active in the NPI registry with telehealth listed in Boston, MA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (617) 732-5500.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.

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Claim Profile

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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