KENNETH S STEWART DO
NPI 1629085261
Anesthesiology in Marietta, GA
About Kenneth S Stewart Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KENNETH S STEWART DO (NPI 1629085261) is an individual anesthesiology provider in Marietta, Georgia, licensed in Georgia (055979) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Wellstar Kennestone Regional Medical Center, and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2001).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Kenneth S Stewart Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Kenneth Stewart reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marietta, GA 30067
- Reassigned Medicare billing, Georgia enrollment
- 3,885 clinicians in this Medicare group
Kennesaw, GA 30152
- Reassigned Medicare billing, Georgia enrollment
- 629 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 5
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 2
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, GAWellstar Cobb Medical Center
Acute Care Hospitals · Austell, 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.
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.
MARIETTA, GA 30067
MARIETTA, GA 30067
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 Kenneth Stewart's NPI number?
The NPI number for Kenneth Stewart is 1629085261. It was assigned to this individual provider in the NPPES registry on August 2, 2006.
Where is Kenneth Stewart located?
Kenneth Stewart practices at 2540 Windy Hill Rd SE, Marietta, GA 30067. The listed phone number is (470) 644-1297.
What is Kenneth Stewart's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Kenneth Stewart enrolled in Medicare?
Yes. Kenneth Stewart is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Kenneth Stewart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth Stewart reassigns Medicare benefits to 2 organizations: Wellstar Medical Group, LLC (Marietta, GA) and Mak Anesthesia Holdings LLC (Kennesaw, GA). Each 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 Kenneth Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kenneth Stewart accept?
Health plans from Alliant Health Plans, Inc. and Oscar Health list Kenneth Stewart 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 Kenneth Stewart affiliated with any hospitals?
According to CMS data, Kenneth Stewart is affiliated with Wellstar Kennestone Regional Medical Center and Wellstar Cobb Medical Center.
When was this NPI record last updated?
The NPPES record for Kenneth Stewart was last updated on September 26, 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.
# Kenneth S Stewart, DO · NPI 1629085261
Anesthesiology physician in Marietta, Georgia. Individual provider, active in the CMS NPPES registry since August 2, 2006.
## Identity
- **NPI:** 1629085261 (Entity type: Individual)
- **Enumerated:** August 2, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 055979 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 2540 WINDY HILL RD SE, Marietta, GA 30067-8605
- **Phone:** (470) 644-1297 · **Fax:** (470) 644-1119
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Wellstar Medical Group, LLC (NPI 1629361605, Marietta, GA); Mak Anesthesia Holdings LLC (NPI 1912452939, Kennesaw, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Arizona College Of Osteopathic Medicine Mid Western University, class of 2001
## Record status
- **NPPES last updated:** September 26, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1629085261) · Data from the CMS NPPES public registry.