NPPES file of Aug 9, 2026

Ilsa Leon, M.D.

Obstetrics & Gynecology Physician · Gretna, LA

Ilsa Leon, M.D. is an obstetrics & gynecology physician with a practice address in Gretna, Louisiana, and NPI 1932498185, issued on Mar 28, 2011. Check the license (Louisiana 207961, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1932498185
Name
Ilsa Leon
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
207961 LA
Self-reported in NPPES; status is on the state search
Practice location
515 Westbank Expy, Gretna, LA 70053
Phone
(504) 366-7233
Enumerated
Mar 28, 2011
Record last updated
Dec 4, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(504) 366-0686
Medicare enrollment
Enrolled (PECOS I20150922002550); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 515 Westbank Expy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jennifer Bigelow, MDObstetrics & Gynecology Physician1063602506
  2. Elizabeth Blanton, MDObstetrics & Gynecology Physician1740256106
  3. Maggie Cahill, MDObstetrics & Gynecology Physician1548729718
  4. Sergio Castillo, MDObstetrics & Gynecology Physician1043286347
  5. Stacey Clasen, M.D.Obstetrics & Gynecology Physician1821042607
  6. Geoffrey Gillen, M.D.Obstetrics & Gynecology Physician1487717864

Verify Ilsa Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
    Search for license 207961
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Louisiana license search

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22% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

202 Medicare Part D claims for 73 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Ilsa Leon202
  2. Specialty average165

Most prescribed

  1. Estradiol46 claims
  2. Valacyclovir18 claims
  3. Fluconazole14 claims
  4. Metronidazole12 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.

The MIPS final score for 2023 (Medicare payment program): 96.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score77.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $164.76

8 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ilsa Leon$164.76
  2. Specialty average$1,030.61

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

  1. New Orleans Physician Services IncMarrero, LA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ilsa Leon among 659 obstetrics & gynecology physician records in Louisiana

Ilsa Leon, M.D. is one of 659 obstetrics & gynecology physician records with a practice address in Louisiana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 76% of them.

  • NPI issued2011 · 76% of these records are older, 22% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2011 · median 2004 among the 436 with a school on file
  • Record last updated2015 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 obstetrics & gynecology physician records list a practice address in Gretna

They are 20 of the 770 NPPES records with a practice address in Gretna, and 659 obstetrics & gynecology physician records in Louisiana.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Mark Allen, MDGretna, LA 700531265508410
  2. Jennifer Bigelow, MDGretna, LA 700531063602506
  3. Elizabeth Blanton, MDGretna, LA 700531740256106
  4. Maggie Cahill, MDGretna, LA 700531548729718
  5. Sergio Castillo, MDGretna, LA 700531043286347
  6. Stacey Clasen, M.D.Gretna, LA 700531821042607
  7. Geoffrey Gillen, M.D.Gretna, LA 700531487717864
  8. Jeanne Hutchinson, M.D.Gretna, LA 700531962436352

Common questions

What is Ilsa Leon, M.D.'s NPI number?

Ilsa Leon, M.D.'s National Provider Identifier (NPI) is 1932498185, issued on Mar 28, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Ilsa Leon, M.D. located?

The NPPES record lists a practice address at 515 Westbank Expy, Gretna, LA, 70053. Phone: (504) 366-7233. Providers update this record themselves, so call before visiting.

How can I verify Ilsa Leon, M.D.'s license?

NPPES lists Louisiana license number 207961, 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 Ilsa Leon, M.D. prescribe under Medicare Part D?

In 2024, Ilsa Leon, M.D. had 202 Medicare Part D claims for 73 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Ilsa Leon, M.D.'s MIPS final score?

The 2023 MIPS final score is 96.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.