Joseph A. Marzouk, MD
Internal Medicine Physician · Westbury, NY
Joseph A. Marzouk, MD is an internal medicine physician with a practice address in Westbury, New York, and NPI 1699851170, issued on Oct 27, 2006. Check the license (New York 156543, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Joseph A. Marzouk
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 156543 NY
Self-reported in NPPES; status is on the state search - Practice location
- 265 Post Avenue, Westbury, NY 11590
- Phone
- (516) 338-9790
- Enumerated
- Oct 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (516) 338-9791
- Medicare enrollment
- Enrolled (PECOS I20110509000280); may accept 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 265 Post Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph A. Marzouk 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 156543Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,397 Medicare Part D claims for 182 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.
Most prescribed
- Atorvastatin Calcium189 claims
- Rosuvastatin Calcium131 claims
- Levothyroxine Sodium120 claims
- Metoprolol Succinate87 claims
- Amlodipine Besylate75 claims
- Tamsulosin Hcl74 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.
Industry payments in 2024: $281.86
14 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Joseph A. Marzouk among 12,067 internal medicine physician records in New York
Joseph A. Marzouk, MD 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
- Graduated1971 · median 2002 among the 7,221 with a school on file
- Record last updated2007 · 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).
16 internal medicine physician records list a practice address in Westbury
They are 16 of the 1,247 NPPES records with a practice address in Westbury, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Westbury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Arthur Autz, MD DPMWestbury, NY 115901881612935
- Tishe Dalipi, D.O.Westbury, NY 115901619008042
- Chris Elsayad, M.D.Westbury, NY 115901831150697
- Aleyamma Jacob, MDWestbury, NY 115901932153996
- Razia Jayman-Aristide, MDWestbury, NY 115901437455839
- Linotte Jean-Jeune, M.D.Westbury, NY 115901790894376
- Engracia Lazatin, M.D.Westbury, NY 115901265474837
- Wilma Lopez, MDWestbury, NY 115901306803317
Common questions
What is Joseph A. Marzouk, MD's NPI number?
Joseph A. Marzouk, MD's National Provider Identifier (NPI) is 1699851170, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph A. Marzouk, MD located?
The NPPES record lists a practice address at 265 Post Avenue, Westbury, NY, 11590. Phone: (516) 338-9790. Providers update this record themselves, so call before visiting.
How can I verify Joseph A. Marzouk, MD's license?
NPPES lists New York license number 156543, 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 A. Marzouk, MD prescribe under Medicare Part D?
In 2024, Joseph A. Marzouk, MD had 2,397 Medicare Part D claims for 182 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.