Muaz Assaf, MD
Internal Medicine Physician · Berwyn, IL
Muaz Assaf, MD is an internal medicine physician with a practice address in Berwyn, Illinois, and NPI 1497337802, issued on Apr 25, 2021. Check the license (Illinois 036170605, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Muaz Assaf
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036170605 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3231 Euclid Ave, Berwyn, IL 60402
- Phone
- (708) 783-7017
- Enumerated
- Apr 25, 2021
- Entity
- Type 1 · individual
Also registered at 3231 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Muaz Assaf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036170605Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
193 Medicare Part D claims for 38 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium15 claims
- Carvedilol11 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: $49.89
2 payments, mostly food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
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
- Methodist Medical Center OF IllinoisPeoria, IL
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.
72 internal medicine physician records list a Berwyn practice address
They are 72 of the 1,031 NPPES records with a Berwyn practice address, and 8,522 internal medicine physician records in Illinois.
All 72 in Berwyn → All 8,522 in Illinois → Every provider in Berwyn →
Other internal medicine physician records in Illinois
- Peter Abadeer, D.O.Bloomington, IL1760469522
- Pamela Abadi, D.O.Winfield, IL1588820179
- Motaz Abas, MDPeoria, IL1215510201
- Elias Abate, M.D.Chicago, IL1336712199
- Maliha Abbas, D.O.Chicago, IL1174963920
- Zareena Abbas, MDChicago, IL1427078872
- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Misha Abbasi, MDChicago, IL1770111635
Common questions
What is Muaz Assaf, MD's NPI number?
Muaz Assaf, MD's National Provider Identifier (NPI) is 1497337802, issued on Apr 25, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Muaz Assaf, MD located?
The NPPES record lists a practice address at 3231 Euclid Ave, Berwyn, IL, 60402. Phone: (708) 783-7017. Providers update this record themselves, so call before visiting.
How can I verify Muaz Assaf, MD's license?
NPPES lists Illinois license number 036170605, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Muaz Assaf, MD prescribe under Medicare Part D?
In 2024, Muaz Assaf, MD had 193 Medicare Part D claims for 38 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.