Janusz Sosniak, M.D.
Internal Medicine Physician · Elmira, NY
Janusz Sosniak, M.D. is an internal medicine physician with a practice address in Elmira, New York, and NPI 1699858209, issued on Oct 24, 2006. Check the license (New York 196983, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Janusz Sosniak
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 196983 NY
Self-reported in NPPES; status is on the state search - Practice location
- 602 Ivy St FL 2, Elmira, NY 14905
- Phone
- (607) 735-4633
- Enumerated
- Oct 24, 2006
- Record last updated
- Dec 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (607) 735-4628
- Medicaid ID
- 01635056 NY
- Medicare enrollment
- Enrolled (PECOS I20031211000976); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 602 Ivy St FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Brimmer, NPNurse Practitioner1811416589
- Madison Coss, PA-CPhysician Assistant1184512444
- Steven Greenberg, M.D.Internal Medicine Physician1790867786
- Nicole Mosher, FNP-CNurse Practitioner1427371962
- Susan Ponivas, RN, ANPNurse Practitioner1467614230
- Aleksander Rupik, M.D.Internal Medicine Physician1407969959
Verify Janusz Sosniak 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 196983Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% more Medicare Part D claims than the average internal medicine physician in 2024
6,178 Medicare Part D claims for 294 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 190 claims were for opioids.
Most prescribed
- Atorvastatin Calcium602 claims
- Metoprolol Succinate328 claims
- Lisinopril296 claims
- Amlodipine Besylate207 claims
- Gabapentin177 claims
- Levothyroxine Sodium173 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): 81.3 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).
One hospital affiliation
- Arnot Ogden Medical CenterElmira, NY · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Janusz Sosniak among 12,067 internal medicine physician records in New York
Janusz Sosniak, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1975 · median 2002 among the 7,221 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Elmira
They are 32 of the 1,746 NPPES records with a practice address in Elmira, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Elmira → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carl Charnetski, M.D.Elmira, NY 149051174598999
- Everton Clare, MDElmira, NY 149051932260551
- Andrew Coates, M.D.Elmira, NY 149051891796090
- Steven Greenberg, M.D.Elmira, NY 149051790867786
- Kimberly Kaffenbarger, M.D.Elmira, NY 149051790867794
- Robert Lambert, M.D.Elmira, NY 149051871549105
- Johnny Mei, MDElmira, NY 149051790808095
- Hany Mosaad-Boktor, M.D.Elmira, NY 149051285854166
Common questions
What is Janusz Sosniak, M.D.'s NPI number?
Janusz Sosniak, M.D.'s National Provider Identifier (NPI) is 1699858209, issued on Oct 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Janusz Sosniak, M.D. located?
The NPPES record lists a practice address at 602 Ivy St FL 2, Elmira, NY, 14905. Phone: (607) 735-4633. Providers update this record themselves, so call before visiting.
How can I verify Janusz Sosniak, M.D.'s license?
NPPES lists New York license number 196983, 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 Janusz Sosniak, M.D. prescribe under Medicare Part D?
In 2024, Janusz Sosniak, M.D. had 6,178 Medicare Part D claims for 294 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Janusz Sosniak, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.3 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.