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Geriatric Medicine

Elizabeth Zavala, MD

Works at hospitals in Harvey, IL · Chicago, IL · Illinois

Summary

Dr. Elizabeth Zavala, MD is a geriatrician at 5841 S Maryland Ave, Chicago, IL 60637. Phone: (773) 702-1000. Accepts Medicare assignment. In 2024, Elizabeth Zavala had 215 Original Medicare patients and 775 services. NPI 1164926010. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Elizabeth Zavala, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Elizabeth Zavala accept Medicare assignment?
Yes. Medicare's clinician data says Elizabeth Zavala accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Elizabeth Zavala see?
In 2024, CMS data shows 215 Original Medicare patients and 775 services for Elizabeth Zavala. This counts Original Medicare only and measures volume, not quality.
What is Elizabeth Zavala's NPI number?
1164926010. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Elizabeth Zavala, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients215
Services billed to Medicare775
Different services or procedures18
Participating Medicare providerYes
Average age of these patients82

Most frequent services

  1. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)282 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)233 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)65 services
  4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)26 services
  5. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)25 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol70%
  • Arthritis67%
  • Diabetes40%
  • Ischemic heart disease39%
  • Alzheimer's disease or dementia39%

Hospitals where Elizabeth Zavala works

Medicare's Facility Affiliation Data lists Elizabeth Zavala at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Elizabeth Zavala is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elizabeth Zavala as a member of these groups (CMS data updated October 2, 2026).

  • University of Chicago1,712 clinicians in the group
  • The University of Chicago Medical Center915 clinicians in the group

Specialties

Find other Geriatric Medicine doctors in Illinois →

Other geriatricians in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

All geriatricians in Chicago →

Other clinicians in University of Chicago

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1164926010
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians