Dr. William B. Sacks, MD
- Medicare services, 2024
- 450
- Medicare patients, 2024
- 426
- Part D claims, 2024
- 247
- MIPS score, 2024
- 90
- Hospital affiliations
- 2
- Practice address
- 2800 Main St, Bridgeport, CT 06606
- Practice phone
- Call (203) 576-5551
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sacks' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William B. Sacks is an internist in Bridgeport, Connecticut
Dr. Sacks practices at St. Vincent's Medical Center in Bridgeport, Connecticut, part of Hartford HealthCare.
Dr. Sacks' NPI, 1871537548, was assigned on June 15, 2006. Dr. Sacks graduated from New York Medical College in 1983. Dr. Sacks holds Connecticut license 027774.
- NPI
- 1871537548NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224934005
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 576-5551
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William B. Sacks practices at St. Vincent's Medical Center in Bridgeport, Connecticut
Dr. Sacks' primary practice is St. Vincent's Medical Center, at 2800 Main St, Bridgeport, CT 06606 in Fairfield County. The practice phone is (203) 576-5551.
- St. Vincent's Medical Center2800 Main St, Bridgeport, CT 06606 · Fairfield CountyPhone(203) 576-5551
Source: Dmand AI Affiliation Data
Dr. William B. Sacks is affiliated with 2 sites of care and 3 medical groups
Dr. Sacks' primary practice is St. Vincent's Medical Center in Bridgeport, Connecticut, part of Hartford HealthCare. Dr. Sacks is also affiliated with Yale New Haven Hospital. The medical group on file is Hartford HealthCare Medical Group Specialists. Dmand AI also links Dr. Sacks to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William B. Sacks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sacks practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Vincent's Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Hartford HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William B. Sacks is one of 2,189 internists in Connecticut
Internal medicine is Dr. Sacks' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Sacks' licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
- Emergency medicine, New York
Internists near Dr. Sacks
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William B. Sacks billed Medicare for 450 services in 2024
CMS data shows 450 Medicare services from Dr. Sacks across 3 procedure codes in 2024, for 426 Medicare patients. Medicare paid $64,406 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sacks' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3932024: 45015%
Dr. Sacks compared with the Connecticut median for internists, 2024
- Dr. Sacks
- Connecticut median
- Medicare services
- 450vs 39015% above
- Medicare patients
- 426vs 1722.5 times
- Part D claims
- 109vs 34368% below
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Sacks' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Sacks?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sacks and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William B. Sacks treated 426 Medicare patients in 2024, average age 76
CMS counts 426 Medicare patients who saw Dr. Sacks in 2024. The largest group is 75 to 84, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.31, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sacks' median patient age at 59, with 55% women.
Dr. Sacks' Medicare patients by age, 2024
Dr. Sacks' Medicare patients by sex, 2024
- Women23956%
- Men18744%
Chronic conditions among Dr. Sacks' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Anxiety47%
- Ischemic heart disease41%
- Mood disorders41%
- Diabetes40%
- Heart failure38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sacks' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William B. Sacks wrote 247 Medicare Part D claims in 2024
In 2024, Dr. Sacks wrote 247 Medicare Part D claims for 179 patients. 94% of them were for generic drugs. CMS names the drug for 109 of them, across 5 drugs with 11 or more claims each, at $469 in total drug cost. In 2023, CMS named 95 claims across 5 drugs.
Dr. Sacks' Part D claims by kind of drug, 2024
- Generic232 claims94%
- Brand-name15 claims6%
Dr. Sacks' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Sacks' Part D claims, 2024
- Opioids20%49 of 247 claims
- Antibiotics21%53 of 247 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 952024: 10915%
Drugs named by CMS: 5 in 2024, 5 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. William B. Sacks scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Sacks for performance year 2024, reported as part of a group. Dr. Sacks accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Sacks' MIPS scores, performance year 2024
- 90of 100Final score
- 83.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. William B. Sacks graduated from New York Medical College
Dr. Sacks graduated from New York Medical College in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William B. Sacks's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William B. Sacks
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William B. Sacks' NPI number?
Dr. William B. Sacks' NPI number is 1871537548. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William B. Sacks?
Dr. William B. Sacks is an internist in Bridgeport, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William B. Sacks practice?
Dr. Sacks practices at 2800 Main St, Bridgeport, CT 06606. Dr. Sacks' primary practice is St. Vincent's Medical Center in Bridgeport, Connecticut, part of Hartford HealthCare. Dmand AI also links Dr. Sacks to 2 medical groups.
What is Dr. William B. Sacks' office phone number?
The practice phone on file for Dr. Sacks is (203) 576-5551.
What is Dr. William B. Sacks' medical license number?
Dr. Sacks holds Connecticut license 027774, one of the licenses on file in 2 states.
Which states has Dr. William B. Sacks been licensed in?
Dmand AI has state licenses on file for Dr. Sacks in Connecticut and New York.
Which hospitals is Dr. William B. Sacks affiliated with?
Dr. Sacks practices at St. Vincent's Medical Center in Bridgeport, Connecticut. Dr. Sacks is also affiliated with Yale New Haven Hospital.
What medical group is Dr. William B. Sacks part of?
Dr. Sacks is linked to Hartford HealthCare Medical Group Specialists. Dmand AI links Dr. Sacks to 2 more medical groups.
Does Dr. William B. Sacks accept Medicare?
Yes. CMS data shows Dr. Sacks billed Medicare for 450 services in 2024, and Dr. Sacks accepts Medicare assignment.
What is Dr. William B. Sacks' MIPS score?
Dr. Sacks' MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. William B. Sacks see?
CMS counts 426 Medicare patients who saw Dr. Sacks in 2024, with an average age of 76.
What services does Dr. William B. Sacks bill to Medicare?
In 2024, Dr. Sacks' most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. William B. Sacks go to medical school?
Dr. Sacks graduated from New York Medical College in 1983.
What drugs does Dr. William B. Sacks prescribe most?
In 2024 Medicare Part D data, Dr. Sacks' most prescribed drugs by claims were Cefadroxil, Oxycodone-Acetaminophen and Prednisone.
How long has Dr. William B. Sacks been practicing?
Dr. Sacks graduated from medical school in 1983, 43 years ago.
Selling to internal medicine practices?
See internists in Connecticut by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card