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Allergy/Immunology

Erinn L. Gardner, MD

Works at hospitals in Canton, GA · Jasper, GA · Georgia

Summary

Dr. Erinn L. Gardner, MD is an allergist and immunologist at 100 Old Ball Ground Hwy, Suite B, Canton, GA 30114. Phone: (770) 720-8000. Accepts Medicare assignment. In 2024, Erinn L. Gardner had 291 Original Medicare patients and 13,882 services. NPI 1538193438. 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: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 100 Old Ball Ground Hwy, Suite B, Canton, GA 30114 · Directions (1 more location)
  • Phone: (770) 720‑8000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Northside Hospital Cherokee, Piedmont Mountainside Hospital Inc
  • Group practice: Atlanta Allergy and Asthma Clinic PA
  • Medical school: University Of Chicago, Pritzker School Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Erinn L. Gardner, 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 Erinn L. Gardner accept Medicare assignment?
Yes. Medicare's clinician data says Erinn L. Gardner 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 Erinn L. Gardner see?
In 2024, CMS data shows 291 Original Medicare patients and 13,882 services for Erinn L. Gardner. This counts Original Medicare only and measures volume, not quality.
What is Erinn L. Gardner's NPI number?
1538193438. 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 Erinn L. Gardner, 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 patients291
Services billed to Medicare13,882
Different services or procedures25
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Test for allergy using allergenic extract (95004)2,664 services
  2. Professional service for multiple injections of allergen (95117)888 services
  3. Test for allergy using allergenic extract injected into skin (95024)361 services
  4. Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes (99458)240 services
  5. Professional service for single injection of allergen (95115)196 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 cholesterol75%
  • High blood pressure71%
  • Arthritis54%
  • Asthma46%
  • Ischemic heart disease25%
  • Anxiety23%

Hospitals where Erinn L. Gardner works

Medicare's Facility Affiliation Data lists Erinn L. Gardner 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.

  • Northside Hospital CherokeeCanton, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110008
  • Piedmont Mountainside Hospital IncJasper, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 110225

Practice locations

Addresses where Erinn L. Gardner is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Erinn L. Gardner as a member of this group (CMS data updated October 2, 2026).

  • Atlanta Allergy and Asthma Clinic PA37 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Georgia →

Other allergist and immunologists in Georgia

Clinicians with the same Medicare primary specialty in Georgia — not a recommendation.

All allergist and immunologists in Georgia →

Other clinicians in Atlanta Allergy and Asthma Clinic PA

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

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538193438
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