Changwan Ryu, MD
Changwan Ryu is an Internal Medicine specialist based in New Haven, CT with over 18 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: CRITICAL CARE (INTENSIVISTS)
Changwan Ryu, MD has been part of the New Haven medical community since 2008 in independent practice. Trained at New York Medical College (class of 2008), he has been practicing for over 18 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and ischemic_heart.
Older · 4269dNPPES updated 2014-09-15 · verify NPI on CMS · Verify license at Connecticut Medical Examining Board
Contact & Location
Practice Location
20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510-3220
How Does This Doctor Compare?
MIPS Score
202373.56/100
Connecticut avg: 84.5 · US avg: 83.6
⚠ Lower than most doctors nationally(-10 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better75.5%
Connecticut avg: 81.1 · US avg: 82.8
⚠ Lower than most doctors nationally(-7.3 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
35
Unique beneficiaries
Boutique practicePrescription Recipients
39
Patients prescribed
Prescriptions Written
335
Total claims
Total Medicare drug cost: $221k
Percentile rankings compared against 1,825 reporting peers in Connecticut.
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 Ischemic Heart Disease.
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
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+28%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+38%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+11%) — a focus area for this doctor
Chronic Obstructive Pulmonary Disease — a group of lung diseases that block airflow
US avg: 20.4%↑ More patients than average (+34%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+9%) — a focus area for this doctor
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.
Graduated medical school · 2008
New York Medical College
18 years in practice
Experienced
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
New York Medical College (Class of 2008)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 450672
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Changwan Ryu
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Changwan Ryu for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to New Haven 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 Changwan Ryu
Dr. Ryu is listed as active in the NPI registry with telehealth listed in New Haven, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (603) 252-6293.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Changwan Ryu
Practice Location
20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510-3220
Mailing Address
20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510-3220
This is a provider directory. Contact the office directly to schedule appointments.
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