Doctor profile · Federal record

Dr. Gregory Gan, MD, PHD

Radiation Oncology Physician (CMS: Radiation Oncology) · Kansas City, KS

  • NPI 1568698561
  • Accepts Medicare
  • MIPS 87.6 / 100 · 2023
  • 17 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4001 Rainbow Blvd # MS 4001
Kansas City, KS 661604374
(913) 588-3600
Mailing address
4001 Rainbow Blvd
Kansas City, KS 661608504

Credentials & registration

NPPES · NUCC
NPI registered
June 2009 — 17 yrs on file
Profile last updated
September 11, 2019
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Kansas #04-42204

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568698561. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,032
Distinct HCPCS
10
Medicare allowed
$82,117
HCPCS Description Services Patients Avg allowed
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 436 46 $20
77300 Calculation of radiation therapy dose 165 35 $31
77427 Radiation treatment management, 5 treatment sessions 104 26 $181
77334 Design and construction of complex radiation treatment device 97 35 $58
99214 Established patient office or other outpatient visit, 30-39 minutes 56 42 $92
77301 High precision radiation therapy planning 44 33 $392
77338 Design and construction of radiation treatment device for high precision radiation therapy 44 33 $210
77263 Complex radiation therapy planning 31 26 $149
99205 New patient office or other outpatient visit, 60-74 minutes 24 24 $166
99215 Established patient office or other outpatient visit, 40-54 minutes 18 16 $136

In context: peer comparison

Among 7 peers in Kansas City Radiation Oncology Physician, average services per provider: 213. This provider delivers 4.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
54
Patients
0
Total drug cost
$1,184
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 17 0 $277
Gabapentin Generic 14 0 $859
Amlodipine Besylate Generic 12 0 $12
Lorazepam Generic 11 0 $36

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Gan's medical specialty?
Dr. Gregory Gan practices Radiation Oncology Physician in Kansas City, KS.
Where does Dr. Gregory Gan practice?
Dr. Gregory Gan practices at 4001 Rainbow Blvd # MS 4001, Kansas City, KS 661604374. Office phone: 9135883600.
What is Dr. Gregory Gan's NPI?
Dr. Gregory Gan's National Provider Identifier (NPI) is 1568698561, issued by NPPES.
Does Dr. Gregory Gan accept Medicare assignment?
Yes. Dr. Gregory Gan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Gan commonly perform?
Top Medicare-reported procedures in 2023: Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Calculation of radiation therapy dose (HCPCS 77300); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.