DR. KATHERINE OSUSKY CASTLE M.D.
NPI 1336561539
Radiology - Radiation Oncology in Nashville, TN

Q: What is Katherine Castle's NPI number?

The NPI number for Katherine Castle is 1336561539. It was assigned to this individual provider in the NPPES registry on January 8, 2014.

Q: What is Katherine Castle's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Katherine Castle was last updated on July 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 08, 2014PECOS EnrolledAccepts Medicare Assignment

2004 HAYES ST STE 350, NASHVILLE, TN 37203(615) 312-3333(615) 320-7091 Get Directions Write a Review

NPPES record last updated: July 24, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Dr. Katherine Osusky Castle M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KATHERINE OSUSKY CASTLE M.D. (NPI 1336561539) is an individual radiation oncology provider in Nashville, Tennessee, licensed in Tennessee (74568) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS, is affiliated with Ascension Saint Thomas Hospital, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1336561539

Entity TypeIndividualFemale

Primary Taxonomy2085R0001X

Provider Legal NameDR. KATHERINE OSUSKY CASTLECredential: M.D.

Location Address2004 HAYES ST STE 350Nashville, TN 37203-2650

Mailing Address2004 Hayes St Ste 800Nashville, TN 37203-2659 · (615) 329-0570 · Fax (615) 329-0579

Phone(615) 312-3333

Fax(615) 320-7091

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateJanuary 8, 2014

Last NPPES UpdateJuly 24, 2025

NPPES CertifiedJuly 24, 2025

✔ NPI 1336561539 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in TN · 74568

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

2004 HAYES ST STE 350, Nashville, TN 37203

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Katherine Osusky Castle M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234356098

PECOS Enrollment IDI20251010000552

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Katherine Castle reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tennessee Oncology PLLC

Same address

Hematology & Oncology

2004 HAYES ST STE 350
Nashville, TN 37203

Reassigned Medicare billing, Tennessee enrollment
464 clinicians in this Medicare group

NPI 1023066149 (615) 312-3333

Lebanon Radiation Oncology Center

27 mi

Radiology

101 PHYSICIANS WAY STE 111
Lebanon, TN 37090

Reassigned Medicare billing, Tennessee enrollment
22 clinicians in this Medicare group

NPI 1750080305 (615) 329-0570

Radiation Oncology Center - Zachary, LLC

455 mi

Oncology, Radiation

6180 MAIN ST, SUITE B
Zachary, LA 70791

Reassigned Medicare billing, Louisiana enrollment
14 clinicians in this Medicare group

NPI 1518393875 (225) 381-6550

Baton Rouge General Medical Center

467 mi

Surgery

3600 FLORIDA BLVD
Baton Rouge, LA 70806

Reassigned Medicare billing, Louisiana enrollment
120 clinicians in this Medicare group

NPI 1215199724 (225) 381-2615

St. Elizabeth-Mary Bird Perkins Cancer Center, L.L.C.

474 mi

Radiation Oncology

1104 W HIGHWAY 30
Gonzales, LA 70737

Reassigned Medicare billing, Louisiana enrollment
41 clinicians in this Medicare group

NPI 1619155124 (225) 215-1223

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

170 services32 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

47 services17 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

46 services14 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

40 services16 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

35 services20 patients

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 or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

35 services16 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Saint Thomas Hospital

Acute Care Hospitals · Nashville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440082

Location4220 Harding Rd, PO Box 380Nashville, TN 37205 · Davidson County

Emergency services Birthing friendly

Tristar Centennial Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440161

Location2300 Patterson StreetNashville, TN 37203 · Davidson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$160.89 typical visit price

range $52.64 – $160.89

Typical copayment $40.22 (range $13.16 – $40.22)

Most-billed visit code 99205

Established Patient

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TENNESSEE ONCOLOGY PLLC

Internal Medicine (Hematology & Oncology)