Mazen A. Mahjoub, MD
Specialist · Warren, OH
Mazen A. Mahjoub, MD is a specialist with a practice address in Warren, Ohio, and NPI 1679512081, issued on Jun 5, 2006. Check the license (Ohio 35-07-2671M, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mazen A. Mahjoub
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 35-07-2671M OH
Self-reported in NPPES; status is on the state search - Practice location
- 9375 E Market St, Warren, OH 44484
- Phone
- (330) 392-0100
- Enumerated
- Jun 5, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 2145851 OH
- Medicare enrollment
- Enrolled (PECOS I20040116000753); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,312 in Ohio → Look up another NPI →
Also registered at 9375 E Market St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Chuirazzi, M.D.Internal Medicine Physician1215923743
- Lisamarie Pietragallo, NP-CFamily Nurse Practitioner1376946319
Verify Mazen A. Mahjoub in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 35-07-2671MCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.8 times the Medicare Part D claims of the average specialist in 2024
12,137 Medicare Part D claims for 1,635 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Succinate1,567 claims
- Eliquis1,133 claims
- Furosemide824 claims
- Isosorbide Mononitrate Er597 claims
- Atenolol586 claims
- Lisinopril566 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): 15.2 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).
Industry payments in 2024: $1,374.90
85 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Mazen A. Mahjoub among 1,312 specialist records in Ohio
Mazen A. Mahjoub, MD is one of 1,312 specialist records with a practice address in Ohio. 15% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 68% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1986 · median 1988 among the 142 with a school on file
- Record last updated2007 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Ohio
There are 1,312 specialist records in Ohio.
All 1,312 in Ohio → Every provider in Warren → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Lawrence D'Amico, M.D.Warren, OH 444841780673988
- Hyo Kim, M.D.Warren, OH 444841760475446
- Nigel Newman, M.D.Warren, OH 444841568464360
- Patrick Patchen, M.D.Warren, OH 444841275522468
- Zafar Sheik, M.D.Warren, OH 444841790787711
- Ehab Sargious, MDWarren, OH 444831619968427
- Chanel ThomasWarren, OH 444851366208142
- Sherri Wintjen, LMTWarren, OH 444831326312653
Common questions
What is Mazen A. Mahjoub, MD's NPI number?
Mazen A. Mahjoub, MD's National Provider Identifier (NPI) is 1679512081, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mazen A. Mahjoub, MD located?
The NPPES record lists a practice address at 9375 E Market St, Warren, OH, 44484. Phone: (330) 392-0100. Providers update this record themselves, so call before visiting.
How can I verify Mazen A. Mahjoub, MD's license?
NPPES lists Ohio license number 35-07-2671M, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Mazen A. Mahjoub, MD prescribe under Medicare Part D?
In 2024, Mazen A. Mahjoub, MD had 12,137 Medicare Part D claims for 1,635 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Mazen A. Mahjoub, MD's MIPS final score?
The 2023 MIPS final score is 15.2 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.