Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Vivek Cherian, MD

Individual provider Internal Medicine Physician · NPI 1811333735

Vivek Cherian, MD practises Internal Medicine in Oak Park, Illinois. Qualified in 2013, 13 years ago. Practices with Cook Physician Services, PC, a 59-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
13
Licensed in
IL
In the registry since
2013
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

520 S Maple Ave
Oak Park, IL 60304-1022
Phone: (708) 383-9300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 303 W Lake St Ste 200, Addison, IL 60101-2500 — (331) 221-9001
  • 201 E University Pkwy, Baltimore, MD 21218 — (410) 554-4393
  • 201 E University Pkwy, Baltimore, MD 21218 — (410) 554-4393

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 036153124 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036153124 (IL)

Record details

NPI number1811333735
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 19, 2013
Last updated in NPPESJune 22, 2026
Certification dateJune 22, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Cook Physician Services, P.C. — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients469
Services billed 521 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Cook Physician Services, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 59 clinicians in the practice; 12 are shown here.

Other providers in Oak Park