Doctor profile · Federal record

Dr. Aaron Spalding, MD PHD

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Internal Medicine Physician · Radiation Oncology Physician · Louisville, KY

  • NPI 1114983871
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 23 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
676 S Floyd St Fl 1
Louisville, KY 402021840
(502) 629-4555
fax (502) 629-4599
Mailing address
Po Box 776347
Chicago, IL 606776347

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
March 25, 2026
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (3)
Kentucky #42294 · Indiana #01059740A · Michigan #4301081806
Medicaid (2)
KY #710067120 · IN #200508490

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114983871. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,474
Distinct HCPCS
10
Medicare allowed
$289,641
HCPCS Description Services Patients Avg allowed
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 892 70 $19
77300 Calculation of radiation therapy dose 513 112 $31
77334 Design and construction of complex radiation treatment device 497 129 $57
77427 Radiation treatment management, 5 treatment sessions 233 77 $178
77014 Ct guidance for insertion of radiation therapy fields 191 37 $43
99213 Established patient office or other outpatient visit, 20-29 minutes 167 126 $63
77263 Complex radiation therapy planning 141 122 $152
99215 Established patient office or other outpatient visit, 40-54 minutes 104 72 $135
99205 New patient office or other outpatient visit, 60-74 minutes 99 99 $171
77290 Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 92 76 $78

In context: peer comparison

Among 8 peers in Louisville Radiation Oncology Physician, average services per provider: 111. This provider delivers 31× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
193
Patients
106
Total drug cost
$2,306
Drug Type Claims Patients Total cost
Dexamethasone Generic 70 54 $378
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 46 21 $770
Gabapentin Generic 27 14 $458
Lidocaine Hcl Viscous (Lidocaine Hcl) Brand 27 17 $434
Tramadol Hcl Generic 12 0 $47
Ondansetron Odt (Ondansetron) Brand 11 0 $218

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Aaron Spalding's medical specialty?
Dr. Aaron Spalding practices Radiation Oncology Physician in Louisville, KY.
Where does Dr. Aaron Spalding practice?
Dr. Aaron Spalding practices at 676 S Floyd St Fl 1, Louisville, KY 402021840. Office phone: 5026294555.
What is Dr. Aaron Spalding's NPI?
Dr. Aaron Spalding's National Provider Identifier (NPI) is 1114983871, issued by NPPES.
Does Dr. Aaron Spalding accept Medicare assignment?
Yes. Dr. Aaron Spalding accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Spalding 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); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.