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General Surgery

Jennifer Y. Gambla, MD

Works at hospitals in Harvey, IL · Morris, IL · New Lenox, IL … · Illinois

Summary

Dr. Jennifer Y. Gambla, MD is a general surgeon at 5841 S Maryland Ave, Chicago, IL 60637. Phone: (888) 824-0200. Accepts Medicare assignment. In 2024, Jennifer Y. Gambla had 101 Original Medicare patients and 284 services. NPI 1174581482. 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 Jennifer Y. Gambla, 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 Jennifer Y. Gambla accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer Y. Gambla 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 Jennifer Y. Gambla see?
In 2024, CMS data shows 101 Original Medicare patients and 284 services for Jennifer Y. Gambla. This counts Original Medicare only and measures volume, not quality.
What is Jennifer Y. Gambla's NPI number?
1174581482. 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 Jennifer Y. Gambla, 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 patients101
Services billed to Medicare284
Different services or procedures20
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)60 services
  2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)46 services
  3. Partial removal of breast (19301)37 services
  4. X-ray of surgical specimen (76098)32 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)29 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 cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • Arthritis54%
  • Diabetes29%
  • Anxiety28%

Hospitals where Jennifer Y. Gambla works

Medicare's Facility Affiliation Data lists Jennifer Y. Gambla 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 Jennifer Y. Gambla is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jennifer Y. Gambla as a member of this group (CMS data updated October 2, 2026).

  • University of Chicago1,712 clinicians in the group

Specialties

Find other General Surgery doctors in Illinois →

Other general surgeons in Chicago

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

All general surgeons 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 year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1174581482
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