Demetrios James Tzimas, M.D.
Gastroenterology Physician · Huntington, NY
Demetrios James Tzimas, M.D. is a gastroenterology physician with a practice address in Huntington, New York, and NPI 1568605152, issued on Apr 12, 2009. Check the license (New York 260464, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Demetrios James Tzimas
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 260464 NY
Self-reported in NPPES; status is on the state search - Practice location
- 195 E Main St Ste B, Huntington, NY 11743
- Phone
- (631) 549-8181
- Enumerated
- Apr 12, 2009
- Record last updated
- Nov 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (631) 385-8280
- Medicare enrollment
- Enrolled (PECOS I20150921000121); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2009
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Verify Demetrios James Tzimas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 260464Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average gastroenterology physician in 2024
150 Medicare Part D claims for 72 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Omeprazole38 claims
- Pantoprazole Sodium24 claims
- Ciprofloxacin Hcl19 claims
- Creon14 claims
- Lactated Ringers11 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): 91.3 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: $333.36
4 payments; by number, the most common kind was food and beverage; the largest payer was Galvanize Therapeutics, 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
- North Shore-Lij Medical PCHuntington, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Demetrios James Tzimas among 1,797 gastroenterology physician records in New York
Demetrios James Tzimas, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 69% of them.
- NPI issued2009 · 69% of these records are older, 27% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2009 · median 1999 among the 1,378 with a school on file
- Record last updated2020 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Huntington → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Mejdi Ahmad, M.D.Huntington, NY 117431760492250
- Thomas Ekkers, M.D.Huntington, NY 117431457562795
- Richard Fried, MDHuntington, NY 117431467470328
- Frederick Gandolfo, M.D.Huntington, NY 117431053550079
- Barry Glanzman, M.D.Huntington, NY 117431598793937
- Scott Ingber, M.D.Huntington, NY 117431417963455
- Helena Joseph, NPHuntington, NY 117431700817301
- Sheena MagoHuntington, NY 117431649776493
Common questions
What is Demetrios James Tzimas, M.D.'s NPI number?
Demetrios James Tzimas, M.D.'s National Provider Identifier (NPI) is 1568605152, issued on Apr 12, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Demetrios James Tzimas, M.D. located?
The NPPES record lists a practice address at 195 E Main St Ste B, Huntington, NY, 11743. Phone: (631) 549-8181. Providers update this record themselves, so call before visiting.
How can I verify Demetrios James Tzimas, M.D.'s license?
NPPES lists New York license number 260464, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Demetrios James Tzimas, M.D. prescribe under Medicare Part D?
In 2024, Demetrios James Tzimas, M.D. had 150 Medicare Part D claims for 72 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Demetrios James Tzimas, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.3 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.