Doctor profile · Federal record

Dr. Gary Stillwagon, M.D

Radiation Oncology Physician (CMS: Radiation Oncology) · Specialist · Lawrenceville, GA

  • NPI 1548244817
  • Accepts Medicare
  • MIPS 94.2 / 100 · 2023
  • 43 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
698 Duluth Hwy, Suite 100
Lawrenceville, GA 300467645
(770) 962-8888
fax (770) 963-7447
Mailing address
Po Box 116470
Atlanta, GA 303686470

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
July 13, 2015
Year of graduation
1983 — 43 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Georgia #035774
Medicaid (2)
GA #000582524H · GA #000582524J

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548244817. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
147
Distinct HCPCS
3
Medicare allowed
$12,244
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 72 36 $42
77427 Radiation treatment management, 5 treatment sessions 42 27 $184
77014 Ct guidance for insertion of radiation therapy fields 33 14 $45

In context: peer comparison

Among 3 peers in Lawrenceville Radiation Oncology Physician, average services per provider: 121. This provider delivers 1.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$19
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 1 $19.04

By nature of payment

Food and Beverage
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$487
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 14 0 $487

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Stillwagon's medical specialty?
Dr. Gary Stillwagon practices Radiation Oncology Physician in Lawrenceville, GA.
Where does Dr. Gary Stillwagon practice?
Dr. Gary Stillwagon practices at 698 Duluth Hwy, Lawrenceville, GA 300467645. Office phone: 7709628888.
What is Dr. Gary Stillwagon's NPI?
Dr. Gary Stillwagon's National Provider Identifier (NPI) is 1548244817, issued by NPPES.
Does Dr. Gary Stillwagon accept Medicare assignment?
Yes. Dr. Gary Stillwagon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Stillwagon commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427); Ct guidance for insertion of radiation therapy fields (HCPCS 77014). Source: CMS Medicare Physician & Other Practitioners file.