GRAHAM A MERCIER MD
NPI 1730604331
Surgery in Athens, GA
About Graham A Mercier Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRAHAM A MERCIER MD (NPI 1730604331) is an individual surgery provider in Athens, Georgia, licensed in Georgia (96717) and active in the NPI registry since August 2017. He is enrolled in Medicare PECOS, is affiliated with St Mary's Hospital, and is a graduate of Medical University Of South Carolina College Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Graham A Mercier Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Graham Mercier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Athens, GA 30606
- Reassigned Medicare billing, Georgia enrollment
- 114 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Mary's Hospital
Acute Care Hospitals · Athens, GATy Cobb Regional Medical Center, LLC
Acute Care Hospitals · Lavonia, GASt. Mary's Good Samaritan Hospital
Critical Access Hospitals · Greensboro, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 30606 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Graham Mercier's NPI number?
The NPI number for Graham Mercier is 1730604331. It was assigned to this individual provider in the NPPES registry on August 4, 2017.
Where is Graham Mercier located?
Graham Mercier practices at 1500 Oglethorpe Ave Ste 2000, Athens, GA 30606. The listed phone number is (706) 548-5488.
What is Graham Mercier's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Graham Mercier enrolled in Medicare?
Yes. Graham Mercier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Graham Mercier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Graham Mercier reassigns Medicare benefits to St. Mary's Medical Group, Inc. (Athens, GA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Graham Mercier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Graham Mercier accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama and Ambetter of North Carolina and 1 other insurer list Graham Mercier as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Graham Mercier affiliated with any hospitals?
According to CMS data, Graham Mercier is affiliated with St Mary's Hospital, Ty Cobb Regional Medical Center, LLC and St. Mary's Good Samaritan Hospital.
When was this NPI record last updated?
The NPPES record for Graham Mercier was last updated on January 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.