Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mazen A. Mahjoub, MD
Specialist in Warren, OH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679512081
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Registry record
Entity type Individual (Type 1)
Name Dr. Mazen A. Mahjoub
Credential MD
Sex Male
Practice address 9375 E Market St, Suite #3, Warren, OH, 44484
Phone (330) 392-0100
Enumeration date Jun 5, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2145851 | Medicaid | OH | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Mazen Mahjoub practice?
The practice location on file with NPPES is in Warren, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mazen Mahjoub?
The National Provider Identifier (NPI) for Mazen Mahjoub is 1679512081, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Christopher Chuirazzi Internal Medicine Physician · Warren, OH NPI 1215923743 Ankle and Foot Care Centers Podiatrist · Warren, OH NPI 1972512887 Medical Associates of Warren, Inc. Internal Medicine Physician · Warren, OH NPI 1649450032 Warren Medical Specialists Inc Internal Medicine Physician · Warren, OH NPI 1790956191 Lisamarie Pietragallo Family Nurse Practitioner · Warren, OH NPI 1376946319
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.