The Harold Leever Regional Cancer Center Inc
NPI 1235145194 · Radiation Oncology Physician · Waterbury, CT
Enrolled with Medicare as Part B Supplier - Radiation Therapy Center · source: CMS PECOS Public Provider Enrollment (2026.04.01)
The Harold Leever Regional Cancer Center Inc is a Radiation Oncology Physician organization in Waterbury, CT (NPI 1235145194).
Provider details
- NPI number
- 1235145194
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Tom Belzek, Administrator(203) 575-5555
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Body Imaging Physician2085B0100X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
5,933 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 | 1,640 | $81 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 1,549 | $381 |
| Calculation of Radiation Therapy Dose77300 | 498 | $36 |
| Continuing Radiation Therapy Consultation Per Week77336 | 475 | $96 |
| Radiation Treatment Delivery,3 Or More Separate Treatment Areas, Custom Blocking, Tangential Ports, Wedges, Rotational Beam, Compensators, Electron Beam; 11-19 MevG6013 | 376 | $247 |
| Design and Construction of Complex Radiation Treatment Device77334 | 354 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2022-07-21
Frequently asked questions
- What is The Harold Leever Regional Cancer Center Inc's NPI number?
- The Harold Leever Regional Cancer Center Inc's National Provider Identifier (NPI) is 1235145194, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is The Harold Leever Regional Cancer Center Inc?
- The Harold Leever Regional Cancer Center Inc is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is The Harold Leever Regional Cancer Center Inc located?
- The Harold Leever Regional Cancer Center Inc's practice location on file with NPPES is 1075 Chase Pkwy, Waterbury, CT 06708-2948.
- What is The Harold Leever Regional Cancer Center Inc's phone number?
- The practice phone number listed in the NPPES registry for The Harold Leever Regional Cancer Center Inc is (203) 575-5555.
- Does The Harold Leever Regional Cancer Center Inc accept Medicare?
- The Harold Leever Regional Cancer Center Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for The Harold Leever Regional Cancer Center Inc?
- The authorized official listed on The Harold Leever Regional Cancer Center Inc's NPPES record is Tom Belzek, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is The Harold Leever Regional Cancer Center Inc's NPI active?
- Yes — The Harold Leever Regional Cancer Center Inc's NPI (1235145194) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.