Natalie Ketsia Alphonse Sullivan, M.D.
Radiation Oncology Physician · Alexandria, LA
Natalie Ketsia Alphonse Sullivan, M.D. is a radiation oncology physician with a practice address in Alexandria, Louisiana, and NPI 1003255761, issued on Jun 17, 2013. Check the license (Louisiana 344149, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Natalie Ketsia Alphonse Sullivan
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 344149 LA
ME148133 FL
Self-reported in NPPES; status is on the state search - Practice location
- 3330 Masonic Dr, Alexandria, LA 71301
- Phone
- (318) 448-6917
- Enumerated
- Jun 17, 2013
- Record last updated
- Feb 12, 2026
- Fax
- (225) 286-7917
- Medicare enrollment
- Enrolled (PECOS I20210129000233); accepts Medicare assignment
- Medical or professional school
- Wake Forest University School Of Medicine, 2013
- Entity
- Type 1 · individual
Also registered at 3330 Masonic Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Andrea Alano, M.D.Neonatal-Perinatal Medicine Physician1821273988
- Carrie Barham, CNPPsychiatric/Mental Health Nurse Practitioner1053117952
- Daniel Bartlett, PA-CPhysician Assistant1811326606
- Jessica Barton, FNP-CFamily Nurse Practitioner1467998492
- Ebenezer Berko, M.D.Hematology & Oncology Physician1154366508
- Jay Book, NPNurse Practitioner1154095354
Verify Natalie Ketsia Alphonse Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 344149Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average radiation oncology physician in 2024
273 Medicare Part D claims for 129 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 32 claims were for opioids.
Most prescribed
- Tamsulosin Hcl65 claims
- Orgovyx18 claims
- Ssd18 claims
- Nystatin17 claims
- Oxycodone Hcl14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $88.88
4 payments; by number, the most common kind was food and beverage; the largest payer was Progenics Pharmaceuticals, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Lakeland Regional Health Systems IncLakeland, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Louisiana
There are 66 radiation oncology physician records in Louisiana.
Other radiation oncology physician records in Louisiana
- Federico Ampil, M.D.Shreveport, LA1538185012
- John Anderson, MDLafayette, LA1124288956
- Russell Anderson, MDShreveport, LA1013043009
- Roxana Baluna, M.D.Shreveport, LA1700837002
- Bryce BeardAlexandria, LA1356798086
- Richard Bermudez, M.D.Covington, LA1811129000
- Ross Bland, M.D.Monroe, LA1437442472
- Daniel Bourgeois, MDSlidell, LA1043568991
- Ashley Brown, M.D.New Orleans, LA1003295551
- David Caletri, MDShreveport, LA1730277831
Common questions
What is Natalie Ketsia Alphonse Sullivan, M.D.'s NPI number?
Natalie Ketsia Alphonse Sullivan, M.D.'s National Provider Identifier (NPI) is 1003255761, issued on Jun 17, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Natalie Ketsia Alphonse Sullivan, M.D. located?
The NPPES record lists a practice address at 3330 Masonic Dr, Alexandria, LA, 71301. Phone: (318) 448-6917. Providers update this record themselves, so call before visiting.
How can I verify Natalie Ketsia Alphonse Sullivan, M.D.'s license?
NPPES lists Louisiana license number 344149, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Natalie Ketsia Alphonse Sullivan, M.D. prescribe under Medicare Part D?
In 2024, Natalie Ketsia Alphonse Sullivan, M.D. had 273 Medicare Part D claims for 129 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Natalie Ketsia Alphonse Sullivan, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.