Katherine Castle, M.D.
NPI 1336561539 · Radiation Oncology Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Castle, M.D. is a Radiation Oncology Physician provider in Nashville, TN (NPI 1336561539).
Provider details
- NPI number
- 1336561539
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 74568 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
440 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 170 | $41 |
| Calculation of Radiation Therapy Dose77300 | 47 | $30 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 46 | $178 |
| Design and Construction of Complex Radiation Treatment Device77334 | 40 | $56 |
| Obtaining Data Needed to Develop the Optimal Radiation Treatment, 1 Treatment Area77280 | 35 | $34 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-01-08
- Last updated
- 2025-07-24
- Certified
- 2025-07-24
Frequently asked questions
- What is Katherine Castle's NPI number?
- Katherine Castle's National Provider Identifier (NPI) is 1336561539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Castle's specialty?
- Katherine Castle is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Castle located?
- Katherine Castle's practice location on file with NPPES is 2004 Hayes St Ste 350, Nashville, TN 37203-2650.
- What is Katherine Castle's phone number?
- The practice phone number listed in the NPPES registry for Katherine Castle is (615) 312-3333.
- Does Katherine Castle accept Medicare?
- Katherine Castle is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Castle's NPI active?
- Yes — Katherine Castle's NPI (1336561539) is active in the NPPES registry as of the last update on 2025-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.