Natalie Alphonse Sullivan, M.D.
NPI 1003255761 · Radiation Oncology Physician · Alexandria, LA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natalie Alphonse Sullivan, M.D. is a Radiation Oncology Physician provider in Alexandria, LA (NPI 1003255761).
Provider details
- NPI number
- 1003255761
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 344149 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
8,315 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) |
|---|---|---|
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 1,996 | $326 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 1,454 | $111 |
| Calculation of Radiation Therapy Dose77300 | 959 | $62 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 873 | $70 |
| Continuing Radiation Therapy Consultation Per Week77336 | 542 | $83 |
| Radiation Treatment Delivery,3 Or More Separate Treatment Areas, Custom Blocking, Tangential Ports, Wedges, Rotational Beam, Compensators, Electron Beam; 6-10 MevG6012 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 65 | 24 |
| Relugolixbrand: Orgovyx | 18 | — |
| Silver Sulfadiazinebrand: Ssd | 18 | 13 |
| Nystatin | 17 | — |
| Oxycodone Hcl | 14 | 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 no Part D record, 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.
$89 across 4 records (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
- 2013-06-17
- Last updated
- 2026-02-12
- Certified
- 2026-02-12
Frequently asked questions
- What is Natalie Alphonse Sullivan's NPI number?
- Natalie Alphonse Sullivan's National Provider Identifier (NPI) is 1003255761, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalie Alphonse Sullivan's specialty?
- Natalie Alphonse Sullivan is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Natalie Alphonse Sullivan located?
- Natalie Alphonse Sullivan's practice location on file with NPPES is 3330 Masonic Dr, Alexandria, LA 71301-3841.
- What is Natalie Alphonse Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Natalie Alphonse Sullivan is (318) 448-6917.
- Does Natalie Alphonse Sullivan accept Medicare?
- Natalie Alphonse Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natalie Alphonse Sullivan's NPI active?
- Yes — Natalie Alphonse Sullivan's NPI (1003255761) is active in the NPPES registry as of the last update on 2026-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.