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

Oscar Arturo Rivas Chicas, MD

Individual provider Internal Medicine Physician · NPI 1417289570

Oscar Arturo Rivas Chicas, MD is an Internal Medicine in Chicago, Illinois. Qualified in 2004, 22 years ago. Practices with Cook County, a 787-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
22
Licensed in
IL
In the registry since
2010
Specialties on file
2
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

1900 W Polk St 15th Fl
Chicago, IL 60612-3723
Phone: (312) 504-3250
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036-125090 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125052285 (IL)

Record details

NPI number1417289570
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 31, 2010
Last updated in NPPESApril 29, 2021
Certification dateApril 29, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Cook County — 787 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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