Joseph Mosak, M.D.
Rheumatology Physician · Staten Island, NY
Joseph Mosak, M.D. is a rheumatology physician with a practice address in Staten Island, New York, and NPI 1922261460, issued on Jul 3, 2008. Check the license (New York 261234, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Joseph Mosak
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 261234 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1534 Victory Blvd, Staten Island, NY 10314
- Phone
- (718) 447-0055
- Enumerated
- Jul 3, 2008
- Record last updated
- Jun 27, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (718) 876-5212
- Medicare enrollment
- Enrolled (PECOS I20130912000016); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2008
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 599 in New York → Look up another NPI →
Also registered at 1534 Victory Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Acquafredda, M.D.Rheumatology Physician1720072481
- Marialena Bucca, M.D.Specialist1578530168
- Manjula Chava, PAPhysician Assistant1205231719
- Elaina Consiglio, PA-CPhysician Assistant1588212864
- Susan Daiuto, D.O.Pediatrics Physician1518934983
- Janice Earle, LCSWSocial Worker1417989054
Verify Joseph Mosak 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 261234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average rheumatology physician in 2024
2,139 Medicare Part D claims for 348 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Methotrexate418 claims
- Prednisone308 claims
- Hydroxychloroquine Sulfate199 claims
- Meloxicam129 claims
- Humira(Cf) Pen104 claims
- Diclofenac Sodium69 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).
Bills Medicare through one group practice
- North Shore-Lij Medical PCNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Mosak among 599 rheumatology physician records in New York
Joseph Mosak, M.D. is one of 599 rheumatology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 39% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2008 · median 2003 among the 425 with a school on file
- Record last updated2013 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in New York
There are 599 rheumatology physician records in New York.
All 599 in New York → Every provider in Staten Island → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Donna Acquafredda, M.D.Staten Island, NY 103141720072481
- Meghan Beard, DOStaten Island, NY 103141750918413
- Peggy Ann Garjian, MDStaten Island, NY 103141386755817
- Maryann Lee, M.D.Staten Island, NY 103141376755710
- Irina Litvin, D.O.Staten Island, NY 103141083905137
- Felicia Tenedios, MDStaten Island, NY 103141003900622
- Ilirjana Duka, D.O.Staten Island, NY 103101720436322
- Elena Sanders, M.D.Staten Island, NY 103051184722548
Common questions
What is Joseph Mosak, M.D.'s NPI number?
Joseph Mosak, M.D.'s National Provider Identifier (NPI) is 1922261460, issued on Jul 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Mosak, M.D. located?
The NPPES record lists a practice address at 1534 Victory Blvd, Staten Island, NY, 10314. Phone: (718) 447-0055. Providers update this record themselves, so call before visiting.
How can I verify Joseph Mosak, M.D.'s license?
NPPES lists New York license number 261234, 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 Joseph Mosak, M.D. prescribe under Medicare Part D?
In 2024, Joseph Mosak, M.D. had 2,139 Medicare Part D claims for 348 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Joseph Mosak, 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.