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Internal Medicine

Elizabeth Z. Callier, MD

Works at hospitals in Atlanta, GA · Georgia

Summary

Dr. Elizabeth Z. Callier, MD is an internal medicine doctor at 1800 Howell Mill Rd NW, Suite 275, Atlanta, GA 30318. Phone: (404) 756-1290. Accepts Medicare assignment. In 2024, Elizabeth Z. Callier had 20 Original Medicare patients and 21 services. NPI 1770112914. 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: 1800 Howell Mill Rd NW, Suite 275, Atlanta, GA 30318 · Directions (1 more location)
  • Phone: (404) 756‑1290
  • Medicare: Accepts Medicare assignment
  • Hospital: Grady Memorial Hospital
  • Group practice: Morehouse Healthcare, Inc.
  • Medical school: Morehouse School Of Medicine · graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Elizabeth Z. Callier, 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 Z. Callier accept Medicare assignment?
Yes. Medicare's clinician data says Elizabeth Z. Callier 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 Z. Callier see?
In 2024, CMS data shows 20 Original Medicare patients and 21 services for Elizabeth Z. Callier. This counts Original Medicare only and measures volume, not quality.
What is Elizabeth Z. Callier's NPI number?
1770112914. 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 Z. Callier, 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 patients20
Services billed to Medicare21
Different services or procedures5
Participating Medicare providerYes
Average age of these patients68

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)11 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%

Hospitals where Elizabeth Z. Callier works

Medicare's Facility Affiliation Data lists Elizabeth Z. Callier 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 Z. Callier is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elizabeth Z. Callier as a member of this group (CMS data updated October 2, 2026).

  • Morehouse Healthcare, Inc.154 clinicians in the group

Specialties

Find other Internal Medicine doctors in Georgia →

Other internal medicine doctors in Atlanta

Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.

All internal medicine doctors in Atlanta →

Other clinicians in Morehouse Healthcare, Inc.

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

Clinician information

CredentialMD
Medical schoolMorehouse School Of Medicine
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770112914
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