William Stuart Asch, M.D., PH.D.
William Stuart Asch is a Nephrology Internal Medicine specialist based in New Haven, CT with over 25 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Patients across CT can see William Stuart Asch, M.D., PH.D. in person in New Haven or via virtual visit — no travel required. Trained at State University of New York at Stony Brook, School of Medicine (class of 2001), he has been practicing for over 25 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and kidney disease (per CMS data).
At a glance
- Uses generic medications more than 84% of reporting doctors in Connecticut
- Virtual visits available — no app or travel required
Older · 6783dNPPES updated 2007-10-27 · verify NPI on CMS · Verify license at Connecticut Medical Examining Board
Contact & Location
Practice Location
20 York Street Cb 2041 Hospitalist Service, New Haven, CT 06510
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
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 = better92.9%
Connecticut avg: 81.1 · US avg: 82.8
✓ Higher than most doctors nationally(+10.1 pts)
Better than 84% of reporting doctors in ConnecticutHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
248
Unique beneficiaries
Standard volumePrescription Recipients
294
Patients prescribed
Prescriptions Written
2,036
Total claims
Total Medicare drug cost: $288k
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 Chronic Kidney 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
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+45%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+20%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-11%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+5%) — 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 (+14%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$176 received from industry
2 transactions reported in 2018 ·Low tier
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 2018, attributed to William Stuart Asch's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2001
Renaissance School of Medicine at Stony Brook University
25 years in practice
Experienced
Nephrologists treat kidney diseases including chronic kidney disease, kidney failure requiring dialysis, glomerulonephritis, kidney stones, and electrolyte disorders. They manage dialysis access and kidney transplant follow-up.
Taxonomy: 207RN0300X
Education & Training
State University of New York at Stony Brook, School of Medicine (Class of 2001)
Mailing address
216 Bishop Street Apartment 314, New Haven, CT 06511-3794
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 450643
View hospital on Medicare Care CompareVirtual Internal Medicine Care With William Stuart Asch
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William Stuart Asch for blood pressure monitoring, cholesterol management, kidney care follow-ups — 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 William Stuart Asch
NPI records show Dr. Asch as active with telehealth listed in New Haven, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (203) 688-4748.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact William Stuart Asch
Practice Location
20 York Street Cb 2041 Hospitalist Service, New Haven, CT 06510
Mailing Address
216 Bishop Street Apartment 314, New Haven, CT 06511-3794
This is a provider directory. Contact the office directly to schedule appointments.
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