WELLSTAR RADIATION ONCOLOGY
NPI 1184990145
Radiology - Radiation Oncology in Marietta, GA

Q: What is Wellstar Medical Group, LLC's NPI number?

The NPI number for Wellstar Medical Group, LLC is 1184990145. It was assigned to this organization in the NPPES registry on March 23, 2012. The provider is doing business as Wellstar Radiation Oncology.

Q: What is Wellstar Medical Group, LLC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Active since March 23, 2012

320 KENNESTONE HOSPITAL BLVD, SUITE LL1, MARIETTA, GA 30060(770) 793-7500(770) 793-7985 Get Directions Write a Review

NPPES record last updated: November 19, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Wellstar Radiation Oncology NPPES

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

WELLSTAR RADIATION ONCOLOGY (NPI 1184990145) is a healthcare organization registered as a radiation oncology in Marietta, Georgia and active in the NPI registry since March 2012. The organization lists Nicole Ashe, Executive Director Of Finance, as its authorized official.

NPPES Registry Identity

NPI1184990145

Entity TypeOrganization

Primary Taxonomy2085R0001X

Legal Business NameWELLSTAR MEDICAL GROUP, LLC

Location Address320 KENNESTONE HOSPITAL BLVD, SUITE LL1Marietta, GA 30060-1161

Mailing Address320 Kennestone Hospital Blvd, Suite Ll1Marietta, GA 30060-1161 · (770) 793-7500 · Fax (770) 793-7985

Phone(770) 793-7500

Fax(770) 793-7985

Organization SubpartYes

Authorized OfficialNicole AsheExecutive Director Of Finance · (470) 644-0095

Enumeration DateMarch 23, 2012

Last NPPES UpdateNovember 19, 2013

✔ NPI 1184990145 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

320 KENNESTONE HOSPITAL BLVD, Marietta, GA 30060

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Other Names 1

Doing Business AsWellstar Radiation Oncology

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Wellstar Radiation Oncology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3,852

Medicare enrollment records show 3,852 clinicians reassign Medicare billing to Wellstar Radiation Oncology, which bills Medicare for the services they deliver. Of these, 24 practice at this address and 1,134 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 79

Nurse Practitioner773

Family Practice246

Internal Medicine225

Hospitalist215

Obstetrics/Gynecology165

Pediatric Medicine165

Certified Registered Nurse Anesthetist (CRNA)153

Anesthesiology151

71 other specialties1,759

Nearest to this location (20)

See all 3,852

Ryan Cantwell, MD

Internal Medicine

NPI 1023007457

320 KENNESTONE HOSPITAL BLVD SUITE 201
Marietta, GA 30060

(770) 427-2457

✔ PECOS✔ Accepts MedicareSame address

Charles Crabbe, MD

Internal Medicine

NPI 1891784229

320 KENNESTONE HOSPITAL BLVD SUITE 201
Marietta, GA 30060

(770) 427-2457

✔ PECOSSame address

Peter Trottier, MD

Emergency Medicine

NPI 1235112947

320 KENNESTONE HOSPITAL BLVD SUITE 201
Marietta, GA 30060

(770) 427-2457

✔ PECOS✔ Accepts MedicareSame address

Sheree Brown, M.D.

Radiation Oncology

NPI 1629085881

320 KENNESTONE HOSPITAL BLVD LL1
Marietta, GA 30060

(770) 793-7500

✔ PECOS✔ Accepts MedicareSame address

Zulfiqar Malik, M.D., PHD

Hematology/Oncology

NPI 1841364908

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Michael Andrews, MD

Hematology/Oncology

NPI 1245234608

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Allison Berard, PA-C

Physician Assistant

NPI 1659694867

340 KENNESTONE HOSPITAL BLVD SUITE LL20
Marietta, GA 30060

(770) 793-6431

✔ PECOS✔ Accepts MedicareSame address

Bruce Gould, MD

Hematology/Oncology

NPI 1326042706

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Hillary Hahm, MD, PHD

Hematology/Oncology

NPI 1801890280

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Dean Kirkel, MD

Hematology/Oncology

NPI 1740242932

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Carmen Klass, MD, PHD

Hematology/Oncology

NPI 1598871410

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Steven Mccune, MD, PHD

Hematology/Oncology

NPI 1043215452

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Raul Oyola, MD

Hematology/Oncology

NPI 1114922432

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Amy Mccloskey, NP

Nurse Practitioner

NPI 1487189072

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Angelica Miller, NP-C

Nurse Practitioner

NPI 1346714094

340 KENNESTONE HOSPITAL BLVD STE 100
Marietta, GA 30060

(770) 281-5100

✔ PECOS✔ Accepts MedicareSame address

Rohit Ganju, MD

Radiation Oncology

NPI 1902292956

320 KENNESTONE HOSPITAL BLVD STE LL1
Marietta, GA 30060

(770) 793-7500

✔ PECOS✔ Accepts MedicareSame address

Nedra Heath, APRN

Nurse Practitioner

NPI 1407514615

310 KENNESTONE HOSPITAL BLVD
Marietta, GA 30060

(770) 793-7902

✔ PECOS✔ Accepts MedicareSame address

Mark Mclaughlin, MD

Radiation Oncology

NPI 1093865198

320 KENNESTONE HOSPITAL BLVD STE LL1
Marietta, GA 30060

(770) 793-7565

✔ PECOS✔ Accepts MedicareSame address

Olusola Obayomi-Davies, MD

Radiation Oncology

NPI 1245521905

320 KENNESTONE HOSPITAL BLVD STE LL1
Marietta, GA 30060

(770) 793-7500

✔ PECOS✔ Accepts MedicareSame address

Sonia Unigwe, NP

Nurse Practitioner

NPI 1326704891

320 KENNESTONE HOSPITAL BLVD STE LL1
Marietta, GA 30060

(770) 793-7500

✔ PECOS✔ Accepts MedicareSame address

See all 3,852 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Wellstar Medical Group, LLC's NPI number?

The NPI number for Wellstar Medical Group, LLC is 1184990145. It was assigned to this organization in the NPPES registry on March 23, 2012. The provider is doing business as Wellstar Radiation Oncology.

Where is Wellstar Medical Group, LLC located?

Wellstar Medical Group, LLC is located at 320 Kennestone Hospital Blvd Suite Ll1, Marietta, GA 30060. The listed phone number is (770) 793-7500.

What is Wellstar Medical Group, LLC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Wellstar Medical Group, LLC enrolled in Medicare?

Yes. Wellstar Medical Group, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Wellstar Medical Group, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3,852 clinicians in 79 Medicare specialties reassign their Medicare billing to Wellstar Medical Group, LLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (773), Family Practice (246) and Internal Medicine (225). Of these, 24 practice at this address and 1,134 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Wellstar Medical Group, LLC was last updated on November 19, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.