Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Feliks S Mavashev, MD

Individual provider Internal Medicine Physician · NPI 1215946603

Dr. Feliks S Mavashev, MD is an Internal Medicine in Chicago, Illinois. Qualified in 1983, 43 years ago. Accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
43
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1007 W Lawrence Ave
Chicago, IL 60640-5017
Phone: (773) 271-1500
Fax: (773) 271-2048
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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 036101294 (IL)

Record details

NPI number1215946603
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 5, 2006
Last updated in NPPESOctober 13, 2020
Certification dateOctober 13, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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