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

Individual provider Internal Medicine Physician · NPI 1427289859

Dr. Gretel Ruiz Jorge, MD practises Geriatric Medicine in Chicago, Illinois. Qualified in 2005, 21 years ago. Practices with Oak Street Health Physicians Group PC, a 234-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
21
Licensed in
IL
In the registry since
2009
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

3010 W 26th St
Chicago, IL 60623-4128
Phone: (847) 220-4103
Fax: (847) 693-7029
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 7000 Cermak Rd, Berwyn, IL 60402-2112 — (708) 484-8090
  • 801 W Lake Ave Ste 200, Peoria, IL 61614-5951 — (773) 377-7304

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036.130192 (IL)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence 036.130192 (IL)

Record details

NPI number1427289859
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 3, 2009
Last updated in NPPESMarch 12, 2026
Certification dateMarch 12, 2026

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Oak Street Health Physicians Group Pc — 234 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 patients32
Services billed 115 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Oak Street Health Physicians Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 234 clinicians in the practice; 12 are shown here.

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