Dr. Antonin Jiri Reznicek, MD
- Medicare services, 2024
- 21
- Medicare patients, 2024
- 38
- Part D claims, 2024
- 2,248
- Hospital affiliations
- 1
- Industry payments
- $131
- Practice address
- 25 Wells Street, Westerly, RI 02891
- Practice phone
- Call (401) 596-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Reznicek's 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. Antonin Jiri Reznicek is an internist in Westerly, Rhode Island
Dr. Reznicek practices at Yale New Haven Health Westerly Hospital in Westerly, Rhode Island, part of Yale New Haven Health System.
Dr. Reznicek's NPI, 1497195176, was assigned on June 26, 2013. Dr. Reznicek graduated from Universidad de Guadalajara in 2012. Dr. Reznicek holds New York license 285603.
- NPI
- 1497195176NPI Registry (opens in a new tab)
- NPI enumeration date
- June 26, 2013
- NPI status
- Active
- Practice phone
- (401) 596-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Antonin Jiri Reznicek practices at Yale New Haven Health Westerly Hospital in Westerly, Rhode Island
Dr. Reznicek's primary practice is Yale New Haven Health Westerly Hospital, at 25 Wells Street, Westerly, RI 02891 in Washington County. The practice phone is (401) 596-6000.
- Yale New Haven Health Westerly Hospital25 Wells Street, Westerly, RI 02891 · Washington CountyPhone(401) 596-6000
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Antonin Jiri Reznicek is affiliated with 2 sites of care and 2 medical groups
Dr. Reznicek's primary practice is Yale New Haven Health Westerly Hospital in Westerly, Rhode Island, part of Yale New Haven Health System. The medical group on file is Hospital Medicine Associates. Dmand AI also links Dr. Reznicek to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Antonin Jiri Reznicek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Reznicek practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale New Haven Health Westerly Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Antonin Jiri Reznicek is one of 805 internists in Rhode Island
Internal medicine is Dr. Reznicek's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Reznicek is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Reznicek
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. Antonin Jiri Reznicek billed Medicare for 21 services in 2024
CMS data shows 21 Medicare services from Dr. Reznicek across 1 procedure code in 2024, all of them office visits, for 38 Medicare patients. Medicare paid $665 for them. Every service was in an office.
Dr. Reznicek's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1282024: 2184%
- Tests and treatments
- 2023: 292024: 0100%
- Other services
- 2023: 472024: 0100%
- Surgery
- 2023: 222024: 0100%
Dr. Reznicek compared with the Rhode Island median for internists, 2024
- Dr. Reznicek
- Rhode Island median
- Medicare services
- 21vs 34294% below
- Medicare patients
- 38vs 14574% below
- Part D claims
- 1,799vs 2846.3 times
Medians across 772 internists in Rhode Island with Dmand AI profiles that report each measure.
Dr. Reznicek'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Reznicek and other internists in Rhode Island.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Antonin Jiri Reznicek treated 38 Medicare patients in 2024, average age 73
CMS counts 38 Medicare patients who saw Dr. Reznicek in 2024. The largest group is 65 to 74, with 18 patients. 71% of them have high cholesterol, and 66% have high blood pressure. 47% are also on Medicaid. Their average risk score is 2.03, 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. Reznicek's median patient age at 71, with 75% women.
Dr. Reznicek's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Reznicek's Medicare patients by sex, 2024
- Women2668%
- Men1232%
Chronic conditions among Dr. Reznicek's Medicare patients, 2024
- High cholesterol71%
- High blood pressure66%
- Arthritis45%
- Chronic kidney disease34%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Reznicek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women75%
- Men22%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Antonin Jiri Reznicek wrote 2,248 Medicare Part D claims in 2024
In 2024, Dr. Reznicek wrote 2,248 Medicare Part D claims for 466 patients. 86% of them were for generic drugs. CMS names the drug for 1,799 of them, across 44 drugs with 11 or more claims each, at $176,545 in total drug cost. In 2023, CMS named 5,294 claims across 87 drugs.
Dr. Reznicek's Part D claims by kind of drug, 2024
- Generic1,937 claims86%
- Brand-name265 claims12%
- Other46 claims2%
Dr. Reznicek'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. Reznicek's Part D claims, 2024
- Antibiotics1%22 of 2,248 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: 5,2942024: 1,79966%
Drugs named by CMS: 44 in 2024, 87 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
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Dr. Antonin Jiri Reznicek received $131 in industry payments from 2016 to 2018
CMS Open Payments shows 3 general payments to Dr. Reznicek from 3 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 88% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $97.
General payments to Dr. Reznicek by program year, 2016 to 2018
General payments to Dr. Reznicek by kind, 2016 to 2018
- Food and beverage$11588%
- Speaker and faculty fees$1612%
Companies that paid Dr. Reznicek the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Antonin Jiri Reznicek graduated from Universidad de Guadalajara
Dr. Reznicek graduated from Universidad de Guadalajara in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Antonin Jiri Reznicek'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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) |
| 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. Antonin Jiri Reznicek
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. Antonin Jiri Reznicek's NPI number?
Dr. Antonin Jiri Reznicek's NPI number is 1497195176. It was assigned on June 26, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Antonin Jiri Reznicek?
Dr. Antonin Jiri Reznicek is an internist in Westerly, Rhode Island. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Antonin Jiri Reznicek practice?
Dr. Reznicek practices at 25 Wells Street, Westerly, RI 02891. Dr. Reznicek's primary practice is Yale New Haven Health Westerly Hospital in Westerly, Rhode Island, part of Yale New Haven Health System. Dmand AI also links Dr. Reznicek to 1 group practice or clinic and 1 medical group.
What is Dr. Antonin Jiri Reznicek's office phone number?
The practice phone on file for Dr. Reznicek is (401) 596-6000.
What is Dr. Antonin Jiri Reznicek's medical license number?
Dr. Reznicek holds New York license 285603.
Which hospitals is Dr. Antonin Jiri Reznicek affiliated with?
Dr. Reznicek practices at Yale New Haven Health Westerly Hospital in Westerly, Rhode Island.
What medical group is Dr. Antonin Jiri Reznicek part of?
Dr. Reznicek is linked to Hospital Medicine Associates. Dmand AI links Dr. Reznicek to 1 more medical group.
Does Dr. Antonin Jiri Reznicek accept Medicare?
Yes. CMS data shows Dr. Reznicek billed Medicare for 21 services in 2024.
How many Medicare patients does Dr. Antonin Jiri Reznicek see?
CMS counts 38 Medicare patients who saw Dr. Reznicek in 2024, with an average age of 73.
What services does Dr. Antonin Jiri Reznicek bill to Medicare?
In 2024, Dr. Reznicek's most billed Medicare services were office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Antonin Jiri Reznicek go to medical school?
Dr. Reznicek graduated from Universidad de Guadalajara in 2012.
What drugs does Dr. Antonin Jiri Reznicek prescribe most?
In 2024 Medicare Part D data, Dr. Reznicek's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Antonin Jiri Reznicek received payments from drug or device companies?
CMS Open Payments shows $131 in general payments to Dr. Reznicek from 3 companies from 2016 to 2018. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Antonin Jiri Reznicek been practicing?
Dr. Reznicek graduated from medical school in 2012, 14 years ago.
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