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Internal Medicine

Andrea M. Bazan, MD

Works at hospitals in Park Ridge, IL · Illinois

Summary

Dr. Andrea M. Bazan, MD is an internal medicine doctor at 1600 W Dempster St, Suite 120, Park Ridge, IL 60068. Phone: (847) 590-1500. Accepts Medicare assignment. In 2024, Andrea M. Bazan had 130 Original Medicare patients and 636 services. NPI 1699871293. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1600 W Dempster St, Suite 120, Park Ridge, IL 60068 · Directions
  • Phone: (847) 590‑1500
  • Medicare: Accepts Medicare assignment
  • Hospital: Advocate Lutheran General Hospital
  • Group practice: Geri Care Ltd
  • Medical school: Chicago College Of Medicine And Surgery · graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Andrea M. Bazan, 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 Andrea M. Bazan accept Medicare assignment?
Yes. Medicare's clinician data says Andrea M. Bazan 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 Andrea M. Bazan see?
In 2024, CMS data shows 130 Original Medicare patients and 636 services for Andrea M. Bazan. This counts Original Medicare only and measures volume, not quality.
What is Andrea M. Bazan's NPI number?
1699871293. 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 Andrea M. Bazan, 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 patients130
Services billed to Medicare636
Different services or procedures26
Participating Medicare providerYes
Average age of these patients81

Most frequent services

  1. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)221 services
  2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)134 services
  3. Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)67 services
  4. Insertion of needle into vein for collection of blood sample (36415)48 services
  5. Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)26 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%
  • Arthritis62%
  • Heart failure45%
  • Atrial fibrillation40%
  • Diabetes39%

Hospitals where Andrea M. Bazan works

Medicare's Facility Affiliation Data lists Andrea M. Bazan 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 Andrea M. Bazan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Andrea M. Bazan as a member of this group (CMS data updated October 2, 2026).

  • Geri Care Ltd12 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Park Ridge

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

All internal medicine doctors in Park Ridge →

Other clinicians in Geri Care Ltd

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

Clinician information

CredentialMD
Medical schoolChicago College Of Medicine And Surgery
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1699871293
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