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Internal Medicine

Megan A. Tierney, DO

Works at hospitals in Atlanta, GA · Cumming, GA · Georgia

Summary

Megan A. Tierney, DO (Internal Medicine) is listed by Medicare at 2 hospitals in Atlanta, GA and Cumming, GA. NPI 1679061840. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Megan A. Tierney, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
8Years since medical school (graduated 2018)
William Carey University College Of Osteopathic MedicineMedical school
FemaleGender (as listed)
Comprehensive Internal MedicineGroup practice (+1 more)

Quick answers

Which hospitals does Megan A. Tierney work at?
Medicare's official clinician data lists Megan A. Tierney at 2 hospitals: Northside Hospital and Northside Hospital Forsyth. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Megan A. Tierney see patients?
Medicare's clinician data lists 2 practice locations, including Alpharetta, GA and Suwanee, GA. Call before your visit to confirm the address.
What is Megan A. Tierney's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Megan A. Tierney accept Medicare assignment?
Yes. Medicare's clinician data says Megan A. Tierney accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Megan A. Tierney offer telehealth?
Medicare's clinician data says Megan A. Tierney offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Megan A. Tierney?
(678) 205-9004, as listed in official Medicare / NPI Registry data.
What is Megan A. Tierney's NPI number?
1679061840. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Megan A. Tierney works

Medicare's Facility Affiliation Data lists Megan A. Tierney at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Megan A. Tierney is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Megan A. Tierney as a member of these groups (CMS data updated 2026-10-02).

  • Comprehensive Internal Medicine9 clinicians in the group
  • Comprehensive Internal Medicine8 clinicians in the group

Specialties

Find other Internal Medicine doctors in Georgia →

Other internal medicine doctors in Alpharetta

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

All internal medicine doctors in Alpharetta →

Clinician information

CredentialDO
Medical schoolWilliam Carey University College Of Osteopathic Medicine
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1679061840
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians