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

Roman W Mandzij, DO

Individual provider Internal Medicine Physician · NPI 1841239902

Roman W Mandzij, DO is an Internal Medicine in Winnetka, Illinois. Qualified in 1994, 32 years ago. Practices with Winnetka Avenue Physicians SC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
32
Licensed in
IL
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

525 Winnetka Ave
Winnetka, IL 60093-4050
Phone: (847) 501-4060
Fax: (847) 501-4063
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036-096445 (IL)

Record details

NPI number1841239902
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 5, 2006
Last updated in NPPESDecember 12, 2016
Mailing address525 Winnetka Ave, Winnetka, IL 60093-4050

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Winnetka Avenue Physicians Sc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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