Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Yazan Jamal Mazahreh

Individual provider Internal Medicine Physician · NPI 1689806838

Dr. Yazan Jamal Mazahreh practises Internal Medicine in Elgin, Illinois. Qualified in 2002, 24 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
24
Licensed in
IL
In the registry since
2009
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Practice location Address checks out

1425 N Randall Rd Ofc
Elgin, IL 60123-2300
Phone: (224) 783-2525
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1775 Dempster St, Park Ridge, IL 60068-1143 — (847) 723-8077

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 125.054074 (IL)

Record details

NPI number1689806838
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 20, 2009
Last updated in NPPESMarch 27, 2025
Certification dateMarch 27, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients244
Services billed 865 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Advocate Health and Hospitals Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3079 clinicians in the practice; 12 are shown here.

Other providers in Elgin