William N Schreiber, MD
William N Schreiber, MD has practiced internal medicine for 50+ years, working in independent practice. A State University of New York at Buffalo School of Medicine graduate since 1976, he brings 50+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis. CMS MIPS quality score: 93.28/100 (2023).
At a glance
- Prescribes opioids less than 23% of reporting doctors in Connecticut
- Uses generic medications more than 83% of reporting doctors in Connecticut
- Federal MIPS score higher than 63% of MIPS-scored doctors in Connecticut
- Virtual visits available — no app or travel required
Older · 5315dNPPES updated 2011-10-17 · verify on CMS
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in Connecticut, prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202393.28/100
Connecticut avg: 84.5 · US avg: 83.6
✓ Higher than most doctors nationally(+9.7 pts)
Average range among MIPS-scored doctors in ConnecticutHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better2.78%
Connecticut avg: 3.9 · US avg: 5.1
✓ Higher than most doctors nationally(-2.3 pts)
2.78% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better92.5%
Connecticut avg: 81.1 · US avg: 82.8
✓ Higher than most doctors nationally(+9.7 pts)
Better than 83% of reporting doctors in ConnecticutHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
301
Unique beneficiaries
Standard volumePrescription Recipients
627
Patients prescribed
Prescriptions Written
3,886
Total claims
Total Medicare drug cost: $223k
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 Arthritis.
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
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-4%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-6%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-9%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-11%) — less common here
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↓ Fewer patients than average (-2%) — less common here
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 · 1976
Jacobs School of Medicine and Biomedical Sciences at Suny Buffalo
50 years in practice
Senior practitioner
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
State University of New York at Buffalo School of Medicine (Class of 1976)
Mailing address
9 Washington Ave 2nd Floor, Hamden, CT 06518-3267
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 450658
View hospital on Medicare Care CompareVirtual Internal Medicine Care With William N Schreiber
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William N Schreiber for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Woodbridge 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 N Schreiber
NPI records show Dr. Schreiber as active with telehealth listed in Woodbridge, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (203) 397-3950.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact William N Schreiber
Practice Location
1 Bradley Rd Suite 709, Woodbridge, CT 06525-2285
Mailing Address
9 Washington Ave 2nd Floor, Hamden, CT 06518-3267
This is a provider directory. Contact the office directly to schedule appointments.
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