John Tsialas, D.O.
Family Medicine Physician · Syosset, NY
John Tsialas, D.O. is a family medicine physician with a practice address in Syosset, New York, and NPI 1629008602, issued on Jul 4, 2006. Check the license (New York 205013, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Tsialas
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 205013 NY
Self-reported in NPPES; status is on the state search - Practice location
- 358 Jericho Tpke, Syosset, NY 11791
- Phone
- (516) 677-9200
- Enumerated
- Jul 4, 2006
- Record last updated
- Jun 13, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (516) 677-9202
- Medicaid ID
- 01863505 NY
- Medicare enrollment
- Enrolled (PECOS I20050131000745); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 1994
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Also registered at 358 Jericho Tpke
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Arnett, R.D.Registered Dietitian1508209032
Verify John Tsialas 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 205013Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
479 Medicare Part D claims for 384 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Amoxicillin76 claims
- Methylprednisolone61 claims
- Doxycycline Monohydrate44 claims
- Nitrofurantoin Mono-Macro34 claims
- Azelastine Hcl32 claims
- Ofloxacin26 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City Medical OF Upper East Side PLLCLynbrook, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Tsialas among 6,417 family medicine physician records in New York
John Tsialas, D.O. is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 58% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1994 · median 2007 among the 4,188 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in New York
There are 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in Syosset → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Daniel AbbeySyosset, NY 117911063867687
- Sofia Barriga Stasco, MDSyosset, NY 117911306531116
- Jennifer Garcia, D.O.Syosset, NY 117911801222609
- Michael Green, MDSyosset, NY 117911073900171
- Shabbir Sadikot, MDSyosset, NY 117911982772216
- Michael Soliman, MDSyosset, NY 117911740442482
- Joel Yohai, M.D.Syosset, NY 117911205890068
- Barbara Boccia, M.D.Stony Brook, NY 117901679545032
Common questions
What is John Tsialas, D.O.'s NPI number?
John Tsialas, D.O.'s National Provider Identifier (NPI) is 1629008602, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Tsialas, D.O. located?
The NPPES record lists a practice address at 358 Jericho Tpke, Syosset, NY, 11791. Phone: (516) 677-9200. Providers update this record themselves, so call before visiting.
How can I verify John Tsialas, D.O.'s license?
NPPES lists New York license number 205013, 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 John Tsialas, D.O. prescribe under Medicare Part D?
In 2024, John Tsialas, D.O. had 479 Medicare Part D claims for 384 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is John Tsialas, D.O.'s MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. 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.