NPPES file of Aug 9, 2026

Bassam Hossain, D.O.

Internal Medicine Physician · Stony Brook, NY

Bassam Hossain, D.O. is an internal medicine physician with a practice address in Stony Brook, New York, and NPI 1164876389, issued on Apr 14, 2016. Check the license (New York 300646, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164876389
Name
Bassam Hossain
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
300646 NY
Self-reported in NPPES; status is on the state search
Practice location
8 Mosshill PL, Stony Brook, NY 11790
Phone
(516) 838-9955
Enumerated
Apr 14, 2016
Record last updated
Apr 26, 2024
Fax
(607) 763-5064
Medicare enrollment
Enrolled (PECOS I20191021000912); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Bassam Hossain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 300646
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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39% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,925 Medicare Part D claims for 150 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 82 claims were for opioids.

  1. Bassam Hossain1,925
  2. Specialty average3,176

Most prescribed

  1. Eliquis102 claims
  2. Pantoprazole Sodium52 claims
  3. Quetiapine Fumarate52 claims
  4. Trazodone Hcl47 claims
  5. Metoprolol Succinate46 claims
  6. Lisinopril45 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): 88.5 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.

  1. Qualityout of 100 · 30% of the final score78.4
  2. Costout of 100 · 30%76.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Southwest Suffolk Medical PCWest Islip, NY
  2. Wellness NP IN Community Health P.C.Brooklyn, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Bassam Hossain among 12,067 internal medicine physician records in New York

Bassam Hossain, D.O. 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 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2016 · median 2002 among the 7,221 with a school on file
  • Record last updated2024 · 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).

121 internal medicine physician records list a practice address in Stony Brook

They are 121 of the 3,053 NPPES records with a practice address in Stony Brook, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ainul Asif, M.D.Stony Brook, NY 117901376849828
  2. Frank Cervo, M.D.Stony Brook, NY 117901194750505
  3. Chun ChenStony Brook, NY 117901780881680
  4. Grace Chung, M.D.Stony Brook, NY 117901679735724
  5. Linda Cocchiarella, MD, MSCStony Brook, NY 117901376544809
  6. Gregory DespotidisStony Brook, NY 117901508449323
  7. Sara Khan, M.D.Stony Brook, NY 117901043691652
  8. Eric Miller, MDStony Brook, NY 117901508494998

Common questions

What is Bassam Hossain, D.O.'s NPI number?

Bassam Hossain, D.O.'s National Provider Identifier (NPI) is 1164876389, issued on Apr 14, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Bassam Hossain, D.O. located?

The NPPES record lists a practice address at 8 Mosshill PL, Stony Brook, NY, 11790. Phone: (516) 838-9955. Providers update this record themselves, so call before visiting.

How can I verify Bassam Hossain, D.O.'s license?

NPPES lists New York license number 300646, 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 Bassam Hossain, D.O. prescribe under Medicare Part D?

In 2024, Bassam Hossain, D.O. had 1,925 Medicare Part D claims for 150 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Bassam Hossain, D.O.'s MIPS final score?

The 2023 MIPS final score is 88.5 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.