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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GREGORY J MACKAY MD
NPI 1386686491
Plastic Surgery in Atlanta, GA

Active since June 12, 2006PECOS Enrolled
5673 PEACHTREE DUNWOODY RD, STE 870, ATLANTA, GA 30342(404) 255-2975(404) 255-2276 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Gregory J Mackay Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY J MACKAY MD (NPI 1386686491) is an individual plastic surgery provider in Atlanta, Georgia, licensed in Georgia (032241) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Northside Hospital, and is a graduate of Medical University Of South Carolina College Of Medicine (1987).

NPPES Registry Identity

NPI1386686491
Entity TypeIndividualMale
Primary Taxonomy208200000X
Provider Legal NameGREGORY J MACKAYCredential: MD
Location Address5673 PEACHTREE DUNWOODY RD, STE 870Atlanta, GA 30342
Mailing Address5673 Peachtree Dunwoody Rd, Ste 870Atlanta, GA 30342 · (404) 255-2975 · Fax (404) 255-2276
Phone(404) 255-2975
Fax(404) 255-2276
Sole ProprietorNo
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 1987
Enumeration DateJune 12, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1386686491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPlastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208200000X
License✔ Licensed in GA · 032241
Definition
A plastic surgeon deals with the repair, reconstruction or replacement of physical defects of form or function involving the skin, musculoskeletal system, craniomaxillofacial structures, hand, extremities, breast and trunk and external genitalia or cosmetic enhancement of these areas of the body. Cosmetic surgery is an essential component of plastic surgery. The plastic surgeon uses cosmetic surgical principles to both improve overall appearance and to optimize the outcome of reconstructive procedures. The surgeon uses aesthetic surgical principles not only to improve undesirable qualities of normal structures but in all reconstructive procedures as well.
5673 PEACHTREE DUNWOODY RD, Atlanta, GA 30342
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Other Names 1

Other Name (5)Gregory James Mackay

Other Identifiers 2

Other5488425Aetna
Other52674035002Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory J Mackay 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.

PECOS PAC ID9638107105
PECOS Enrollment IDI20050727000579
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northside Hospital

Acute Care Hospitals · Atlanta, GA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110161
Location1000 Johnson Ferry Road, NEAtlanta, GA 30342 · Fulton County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30342 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.06 typical visit price
range $56.84 – $172.43
Typical copayment $22.01 (range $14.21 – $43.10)
Most-billed visit code 99203
Established Patient
$70.85 typical visit price
range $18.22 – $140.40
Typical copayment $17.71 (range $4.55 – $35.10)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. PETER JAY ABRAMSON MD
Otolaryngology
5673 PEACHTREE DUNWOODY RD, STE 150
ATLANTA, GA 30342
Fulton County (404) 297-1780
NATIONWIDE ANESTHESIA MANAGEMENT GROUP INC
Anesthesiology
5673 PEACHTREE DUNWOODY RD, STE 910
ATLANTA, GA 30342
Fulton County (877) 364-9803
THOMAS SZABO YAMASHITA MD
Surgery
5673 PEACHTREE DUNWOODY RD
ATLANTA, GA 30342
Fulton County (404) 778-0820
GEORGIA INFECTIOUS DISEASES, PC
Internal Medicine (Infectious Disease)
5673 PEACHTREE DUNWOODY RD, SUITE 600
ATLANTA, GA 30342
Fulton County (404) 256-4111
DR. MARGARET WILLIAMSON M.D.
Internal Medicine (Infectious Disease)
5673 PEACHTREE DUNWOODY RD, SUITE #600
ATLANTA, GA 30342
Fulton County (404) 256-4111
EILEEN FRANCES DUNNE MD
Preventive Medicine (Public Health & General Preventive Medicine)
5673 PEACHTREE DUNWOODY RD, SUITE 330
ATLANTA, GA 30342
Fulton County (404) 459-0002
DR. DREW FREILICH MD
Urology
5673 PEACHTREE DUNWOODY RD, STE 910
ATLANTA, GA 30342
Fulton County (404) 255-3822
ATLANTA PLASTIC & RECONSTRUCTIVE SPECIALISTS, LLC
Plastic Surgery
5673 PEACHTREE DUNWOODY RD, SUITE 870
ATLANTA, GA 30342
Fulton County (404) 255-2975

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 Gregory Mackay's NPI number?

The NPI number for Gregory Mackay is 1386686491. It was assigned to this individual provider in the NPPES registry on June 12, 2006. The provider is also known as Gregory James Mackay.

Where is Gregory Mackay located?

Gregory Mackay practices at 5673 Peachtree Dunwoody Rd Ste 870, Atlanta, GA 30342. The listed phone number is (404) 255-2975.

What is Gregory Mackay's specialty?

The primary specialty registered for this NPI is Plastic Surgery with taxonomy code 208200000X.

Is Gregory Mackay enrolled in Medicare?

Yes. Gregory Mackay 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.

What insurance does Gregory Mackay accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Gregory Mackay 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 Gregory Mackay affiliated with any hospitals?

According to CMS data, Gregory Mackay is affiliated with Northside Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Mackay was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.