Christopher Iannuzzi, MD
NPI 1558346221 · Radiation Oncology Physician · Bridgeport, CT
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Iannuzzi, MD is a Radiation Oncology Physician provider in Bridgeport, CT (NPI 1558346221).
Provider details
- NPI number
- 1558346221
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 040798 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,244 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 343 | $48 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 190 | $15 |
| Calculation of Radiation Therapy Dose77300 | 154 | $35 |
| Design and Construction of Complex Radiation Treatment Device77334 | 104 | $65 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 79 | $206 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 68 | $104 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 188 | 58 |
| Bicalutamide | 27 | 19 |
| Methylprednisolone | 21 | 18 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 11 | — |
| Silodosin | 11 | — |
| Sucralfate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$53 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-14
- Last updated
- 2014-03-18
Frequently asked questions
- What is Christopher Iannuzzi's NPI number?
- Christopher Iannuzzi's National Provider Identifier (NPI) is 1558346221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Iannuzzi's specialty?
- Christopher Iannuzzi is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Iannuzzi located?
- Christopher Iannuzzi's practice location on file with NPPES is 2800 Main St, Bridgeport, CT 06606-4201.
- What is Christopher Iannuzzi's phone number?
- The practice phone number listed in the NPPES registry for Christopher Iannuzzi is (203) 576-6133.
- Does Christopher Iannuzzi accept Medicare?
- Christopher Iannuzzi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Iannuzzi's NPI active?
- Yes — Christopher Iannuzzi's NPI (1558346221) is active in the NPPES registry as of the last update on 2014-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.