Jeffrey T. Dreznick, M.D.
Gastroenterology Physician · Ansonia, CT
Jeffrey T. Dreznick, M.D. is a gastroenterology physician with a practice address in Ansonia, Connecticut, and NPI 1902895436, issued on Oct 18, 2005. Check the license (Connecticut 028004, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jeffrey T. Dreznick
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 028004 CT
Self-reported in NPPES; status is on the state search - Practice location
- 22 Westfield Ave, Ansonia, CT 06401
- Phone
- (203) 736-9919
- Enumerated
- Oct 18, 2005
- Record last updated
- Feb 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 735-2055
- Medicare enrollment
- Enrolled (PECOS I20080114000437); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 1984
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 22 Westfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Brennan, MDInternal Medicine Physician1013927797
- Jennifer Dodge, PA-CPhysician Assistant1558402230
- Roy Kalman, M.D.Gynecology Physician1053335299
- Deborah Levenson, M.D.Gastroenterology Physician1952406688
- Michael Lipcan, MDGastroenterology Physician1770624447
- Ashish Malhotra, MDGastroenterology Physician1750589883
Verify Jeffrey T. Dreznick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 028004Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average gastroenterology physician in 2024
1,373 Medicare Part D claims for 435 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Famotidine290 claims
- Pantoprazole Sodium183 claims
- Ondansetron Hcl155 claims
- Sod Sulf-Potass Sulf-Mag Sulf127 claims
- Omeprazole72 claims
- Gavilyte-G70 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $504.31
21 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Griffin Faculty Physicians IncAnsonia, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey T. Dreznick among 336 gastroenterology physician records in Connecticut
Jeffrey T. Dreznick, M.D. is one of 336 gastroenterology physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1984 · median 2001 among the 255 with a school on file
- Record last updated2021 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 gastroenterology physician records list a practice address in Ansonia
They are 5 of the 203 NPPES records with a practice address in Ansonia, and 336 gastroenterology physician records in Connecticut.
All 336 in Connecticut → Every provider in Ansonia → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Deborah Levenson, M.D.Ansonia, CT 064011952406688
- Michael Lipcan, MDAnsonia, CT 064011770624447
- Ashish Malhotra, MDAnsonia, CT 064011750589883
- Sarah Olivier-Cabrera, MDAnsonia, CT 064011316237936
- Kenneth Barshop, M.D.Branford, CT 064051316396690
- Michael Dorfman, M.D.Branford, CT 064051164658555
- Keri Herzog, M.D.Branford, CT 064051427292614
- Christopher Illick, MDBranford, CT 064051609836998
Common questions
What is Jeffrey T. Dreznick, M.D.'s NPI number?
Jeffrey T. Dreznick, M.D.'s National Provider Identifier (NPI) is 1902895436, issued on Oct 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey T. Dreznick, M.D. located?
The NPPES record lists a practice address at 22 Westfield Ave, Ansonia, CT, 06401. Phone: (203) 736-9919. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey T. Dreznick, M.D.'s license?
NPPES lists Connecticut license number 028004, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jeffrey T. Dreznick, M.D. prescribe under Medicare Part D?
In 2024, Jeffrey T. Dreznick, M.D. had 1,373 Medicare Part D claims for 435 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Jeffrey T. Dreznick, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.