Registry data as of Aug 27, 2026

Marc Maalouf, M.D.

Internal Medicine Physician · Wynnewood, PA

Marc Maalouf, M.D. is an internal medicine physician with a practice address in Wynnewood, Pennsylvania, and NPI 1538591912, issued on Aug 7, 2013. Check the license (Pennsylvania MT204670, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1538591912
Name
Marc Maalouf
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MT204670 PA
MD205190 OR
Self-reported in NPPES; status is on the state search
Practice location
100 E Lancaster Ave, Wynnewood, PA 19096
Phone
(484) 476-2000
Enumerated
Aug 7, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 E Lancaster Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nicholas Abate, DOStudent in an Organized Health Care Education/Training Program1508568676
  2. John Abramson, M.D.Gastroenterology Physician1710953633
  3. Sandra Abramson, MDCardiovascular Disease Physician1275538282
  4. Olivia Ackley, MDInternal Medicine Physician1174453930
  5. Ashley Adams, CRNPNurse Practitioner1497225635
  6. Bonnie Adelman, M.S.P.A.Audiologist1568718088

Verify Marc Maalouf in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MT204670
    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 Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

1% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,760 Medicare Part D claims for 423 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Marc Maalouf2,760
  2. Specialty average2,785

Most prescribed

  1. Metoprolol Succinate265 claims
  2. Eliquis249 claims
  3. Clopidogrel238 claims
  4. Atorvastatin Calcium191 claims
  5. Furosemide174 claims
  6. Metoprolol Tartrate171 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: $33.54

2 payments, mostly food and beverage; the largest payer was Amgen Inc.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marc Maalouf$33.54
  2. Specialty average$2,536.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Salem HealthSalem, OR

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

163 internal medicine physician records list a Wynnewood practice address

They are 163 of the 1,246 NPPES records with a Wynnewood practice address, and 8,636 internal medicine physician records in Pennsylvania.

Other internal medicine physician records in Pennsylvania

  1. Erin Aakhus, M.D.Philadelphia, PA1255652087
  2. Muhammad Aamir, MDAllentown, PA1477039147
  3. Saira Aamir, MDYork, PA1184515686
  4. John Aaron, MDWest Grove, PA1427094531
  5. Todd Aaron, MDPhiladelphia, PA1457350522
  6. Cybele Abad, M.D.Pittsburgh, PA1619900453
  7. Mario Abad, MDDuncannon, PA1710022975
  8. Joseph Abalos, M.D.Seneca, PA1215128434
  9. Ali Abbas, MDYork, PA1023343779
  10. Huda Abbas, MDDoylestown, PA1316187024

Common questions

What is Marc Maalouf, M.D.'s NPI number?

Marc Maalouf, M.D.'s National Provider Identifier (NPI) is 1538591912, issued on Aug 7, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Marc Maalouf, M.D. located?

The NPPES record lists a practice address at 100 E Lancaster Ave, Wynnewood, PA, 19096. Phone: (484) 476-2000. Providers update this record themselves, so call before visiting.

How can I verify Marc Maalouf, M.D.'s license?

NPPES lists Pennsylvania license number MT204670, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marc Maalouf, M.D. prescribe under Medicare Part D?

In 2024, Marc Maalouf, M.D. had 2,760 Medicare Part D claims for 423 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.