Aaron Spalding, MD PHD
NPI 1114983871 · Radiation Oncology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Spalding, MD PHD is a Radiation Oncology Physician provider in Louisville, KY (NPI 1114983871).
Provider details
- NPI number
- 1114983871
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 01059740A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,762 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 1,114 | $20 |
| Calculation of Radiation Therapy Dose77300 | 444 | $32 |
| Design and Construction of Complex Radiation Treatment Device77334 | 356 | $60 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 303 | $16 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 299 | $188 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dexamethasone | 70 | 59 |
| Gabapentin | 41 | 21 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 39 | 16 |
| Diazepam | 26 | 16 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 25 | 11 |
| Oxycodone Hcl | 23 | 12 |
| Pentoxifylline | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-21
- Last updated
- 2026-03-25
- Certified
- 2026-03-25
Frequently asked questions
- What is Aaron Spalding's NPI number?
- Aaron Spalding's National Provider Identifier (NPI) is 1114983871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Spalding's specialty?
- Aaron Spalding is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Spalding located?
- Aaron Spalding's practice location on file with NPPES is 676 S Floyd St Fl 1, Louisville, KY 40202-1840.
- What is Aaron Spalding's phone number?
- The practice phone number listed in the NPPES registry for Aaron Spalding is (502) 629-4555.
- Does Aaron Spalding accept Medicare?
- Aaron Spalding is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Spalding's NPI active?
- Yes — Aaron Spalding's NPI (1114983871) is active in the NPPES registry as of the last update on 2026-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.