Dr. Richard M. Zweig, MD
- Medicare services, 2024
- 942
- Medicare patients, 2024
- 175
- Part D claims, 2024
- 8,309
- Hospital affiliations
- 1
- Industry payments
- $8,042
- Practice address
- 41 Brewster Rd, Bristol, CT 06010
- Practice phone
- Call (860) 585-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zweig's professional email, personal email and mobile number
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Dr. Richard M. Zweig is an internist in Bristol, Connecticut
Dr. Zweig practices at Bristol Hospital in Bristol, Connecticut, part of Bristol Hospital and Health Care Group.
Dr. Zweig's NPI, 1477548451, was assigned on September 15, 2005. Dr. Zweig graduated from State University of New York at Buffalo School of Medicine in 1976. Dr. Zweig holds Connecticut license 022652.
- NPI
- 1477548451NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143363655
- NPI enumeration date
- September 15, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 585-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard M. Zweig practices at Bristol Hospital in Bristol, Connecticut
Dr. Zweig's primary practice is Bristol Hospital, at 41 Brewster Rd, Bristol, CT 06010 in Hartford County. The practice phone is (860) 585-3000.
- Bristol Hospital41 Brewster Rd, Bristol, CT 06010 · Hartford CountyPhone(860) 585-3000
Source: Dmand AI Affiliation Data
Dr. Richard M. Zweig is affiliated with 6 sites of care and 2 medical groups
Dr. Zweig's primary practice is Bristol Hospital in Bristol, Connecticut, part of Bristol Hospital and Health Care Group. The medical group on file is Bristol Health Medical Group. Dmand AI also links Dr. Zweig to 3 more home health agencies, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group, 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. Richard M. Zweig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zweig practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bristol Hospital | Available with a free account |
| +5 more sites and 1 medical group | 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 Bristol Hospital and Health Care Group and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Richard M. Zweig is one of 2,189 internists in Connecticut
Internal medicine is Dr. Zweig's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zweig is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Zweig
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. Richard M. Zweig billed Medicare for 942 services in 2024
CMS data shows 942 Medicare services from Dr. Zweig across 9 procedure codes in 2024, for 175 Medicare patients. Medicare paid $73,551 for them. Every service was in an office.
Dr. Zweig's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6222024: 50119%
- Other services
- 2023: 1982024: 1971%
- Tests and treatments
- 2023: 1872024: 14821%
- Lab and pathology
- 2023: 902024: 967%
Dr. Zweig compared with the Connecticut median for internists, 2024
- Dr. Zweig
- Connecticut median
- Medicare services
- 942vs 3902.4 times
- Medicare patients
- 175vs 172Close to median
- Part D claims
- 7,663vs 34322.3 times
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Zweig's 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. Zweig?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zweig and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard M. Zweig treated 175 Medicare patients in 2024, average age 77
CMS counts 175 Medicare patients who saw Dr. Zweig in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zweig's median patient age at 69, with 42% women.
Dr. Zweig's Medicare patients by age, 2024
Dr. Zweig's Medicare patients by sex, 2024
- Women8146%
- Men9454%
Chronic conditions among Dr. Zweig's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis33%
- Atrial fibrillation28%
- Diabetes23%
- Chronic kidney disease21%
- Cancer19%
- Ischemic heart disease19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zweig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women42%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard M. Zweig wrote 8,309 Medicare Part D claims in 2024
In 2024, Dr. Zweig wrote 8,309 Medicare Part D claims for 491 patients. 84% of them were for generic drugs. CMS names the drug for 7,663 of them, across 143 drugs with 11 or more claims each, at $1,209,661 in total drug cost. In 2023, CMS named 7,404 claims across 145 drugs.
Dr. Zweig's Part D claims by kind of drug, 2024
- Generic6,992 claims84%
- Brand-name1,274 claims15%
- Other43 claims1%
Dr. Zweig's 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. Zweig's Part D claims, 2024
- Opioids1%67 of 8,309 claims
- Antibiotics2%149 of 8,309 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: 7,4042024: 7,6633%
Drugs named by CMS: 143 in 2024, 145 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
How Dr. Richard M. Zweig takes part in Medicare
Dr. Zweig accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Richard M. Zweig received $8,042 in industry payments from 2016 to 2025
CMS Open Payments shows 490 general payments to Dr. Zweig from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,261.
General payments to Dr. Zweig by program year, 2016 to 2025
General payments to Dr. Zweig by kind, 2016 to 2025
- Food and beverage$7,53694%
- Education$5056%
Companies that paid Dr. Zweig the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard M. Zweig graduated from State University of New York at Buffalo School of Medicine
Dr. Zweig graduated from State University of New York at Buffalo School of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard M. Zweig'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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. Richard M. Zweig
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. Richard M. Zweig's NPI number?
Dr. Richard M. Zweig's NPI number is 1477548451. It was assigned on September 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard M. Zweig?
Dr. Richard M. Zweig is an internist in Bristol, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Richard M. Zweig practice?
Dr. Zweig practices at 41 Brewster Rd, Bristol, CT 06010. Dr. Zweig's primary practice is Bristol Hospital in Bristol, Connecticut, part of Bristol Hospital and Health Care Group. Dmand AI also links Dr. Zweig to 3 home health agencies, 1 group practice or clinic, 1 therapy and rehab clinic and 1 medical group.
What is Dr. Richard M. Zweig's office phone number?
The practice phone on file for Dr. Zweig is (860) 585-3000.
What is Dr. Richard M. Zweig's medical license number?
Dr. Zweig holds Connecticut license 022652.
Which hospitals is Dr. Richard M. Zweig affiliated with?
Dr. Zweig practices at Bristol Hospital in Bristol, Connecticut.
What medical group is Dr. Richard M. Zweig part of?
Dr. Zweig is linked to Bristol Health Medical Group. Dmand AI links Dr. Zweig to 1 more medical group.
Does Dr. Richard M. Zweig accept Medicare?
Yes. CMS data shows Dr. Zweig billed Medicare for 942 services in 2024, and Dr. Zweig accepts Medicare assignment.
How many Medicare patients does Dr. Richard M. Zweig see?
CMS counts 175 Medicare patients who saw Dr. Zweig in 2024, with an average age of 77.
What services does Dr. Richard M. Zweig bill to Medicare?
In 2024, Dr. Zweig's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and heart test or procedure (93000).
Show 4 more questionsShow fewer questions
Where did Dr. Richard M. Zweig go to medical school?
Dr. Zweig graduated from State University of New York at Buffalo School of Medicine in 1976.
What drugs does Dr. Richard M. Zweig prescribe most?
In 2024 Medicare Part D data, Dr. Zweig's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Richard M. Zweig received payments from drug or device companies?
CMS Open Payments shows $8,042 in general payments to Dr. Zweig from 35 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Richard M. Zweig been practicing?
Dr. Zweig graduated from medical school in 1976, 50 years ago.
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