GRACE CHIANG MD
NPI 1750556106
Allergy & Immunology in Marietta, GA
About Grace Chiang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRACE CHIANG MD (NPI 1750556106) is an individual allergy & immunology provider in Marietta, Georgia, licensed in Georgia (062321) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with Wellstar Kennestone Regional Medical Center, and maintains a secondary practice location in Smyrna.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Grace Chiang 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 Grace Chiang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Marietta, GA 30062
- Reassigned Medicare billing, Georgia enrollment
- 3,885 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 7
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wellstar Kennestone Regional Medical Center
Acute Care Hospitals · Marietta, GAMedicare 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.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES
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 Grace Chiang's NPI number?
The NPI number for Grace Chiang is 1750556106. It was assigned to this individual provider in the NPPES registry on April 28, 2008.
Where is Grace Chiang located?
Grace Chiang practices at 3747 Roswell Rd Ste 205, Marietta, GA 30062. The listed phone number is (770) 333-2027.
What is Grace Chiang's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Grace Chiang enrolled in Medicare?
Yes. Grace Chiang 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 Grace Chiang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grace Chiang reassigns Medicare benefits to Wellstar Medical Group, LLC (Marietta, 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 Grace Chiang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grace Chiang accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health and Oscar Health list Grace Chiang 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 Grace Chiang affiliated with any hospitals?
According to CMS data, Grace Chiang is affiliated with Wellstar Kennestone Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Grace Chiang was last updated on October 29, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Grace Chiang, MD · NPI 1750556106
Allergy & Immunology physician in Marietta, Georgia. Individual provider, active in the CMS NPPES registry since April 28, 2008.
## Identity
- **NPI:** 1750556106 (Entity type: Individual)
- **Enumerated:** April 28, 2008
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** 062321 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3747 ROSWELL RD STE 205, Marietta, GA 30062
- **Phone:** (770) 333-2027 · **Fax:** (770) 333-2031
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Wellstar Medical Group, LLC (NPI 1407141088, Marietta, GA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** October 29, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1750556106) · Data from the CMS NPPES public registry.