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Internal Medicine

Mark R. Hannay, MD

Works at hospitals in Savannah, GA · Georgia

Summary

Dr. Mark R. Hannay, MD is an internal medicine doctor at 1000 Towne Ctr Blvd, Bldg 1200, Pooler, GA 31322. Phone: (912) 748-2280. Accepts Medicare assignment. NPI 1639505951. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1000 Towne Ctr Blvd, Bldg 1200, Pooler, GA 31322 · Directions (1 more location)
  • Phone: (912) 748‑2280
  • Medicare: Accepts Medicare assignment
  • Hospital: St Joseph's Hospital - Savannah
  • Group practice: Privia Medical Group of Georgia LLC (+1 more)
  • Medical school: graduated 2016 (10 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Mark R. Hannay, 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 Mark R. Hannay accept Medicare assignment?
Yes. Medicare's clinician data says Mark R. Hannay 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.
What is Mark R. Hannay's NPI number?
1639505951. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark R. Hannay works

Medicare's Facility Affiliation Data lists Mark R. Hannay 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 Mark R. Hannay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mark R. Hannay as a member of these groups (CMS data updated October 2, 2026).

  • Privia Medical Group of Georgia LLC462 clinicians in the group
  • Effingham Rehab Services, LLC155 clinicians in the group

Specialties

Find other Internal Medicine doctors in Georgia →

Other internal medicine doctors in Pooler

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

All internal medicine doctors in Pooler →

Other clinicians in Privia Medical Group of Georgia LLC

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

Clinician information

CredentialMD
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639505951
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians