Leslie F. Mason, M.D.
Obstetrics & Gynecology Physician · Madison, MS
Leslie F. Mason, M.D. is an obstetrics & gynecology physician with a practice address in Madison, Mississippi, and NPI 1275731929, issued on Jul 4, 2007. Check the license (Mississippi 21521, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Leslie F. Mason
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 21521 MS
Self-reported in NPPES; status is on the state search - Practice location
- 115 Fountains Blvd, Madison, MS 39110
- Phone
- (601) 853-0100
- Enumerated
- Jul 4, 2007
- Record last updated
- Jun 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (601) 853-3999
- Medicare enrollment
- Enrolled (PECOS I20121109000255); may accept Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 326 in Mississippi → Look up another NPI →
Also registered at 115 Fountains Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erika Tanner, M.D.Obstetrics & Gynecology Physician1679732788
Verify Leslie F. Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 21521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
507 Medicare Part D claims for 74 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Estradiol75 claims
- Estradiol (Once Weekly)28 claims
- Estradiol (Twice Weekly)24 claims
- Omeprazole23 claims
- Prempro22 claims
- Ibandronate Sodium21 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.
Industry payments in 2024: $433.49
24 payments; by number, the most common kind was food and beverage; the largest payer was Exeltis, USA Inc. 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.
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
- Madison Ob/gyn Associates, LLCMadison, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leslie F. Mason among 326 obstetrics & gynecology physician records in Mississippi
Leslie F. Mason, M.D. is one of 326 obstetrics & gynecology physician records with a practice address in Mississippi. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.
- NPI issued2007 · 53% of these records are older, 37% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2007 · median 1999 among the 213 with a school on file
- Record last updated2016 · 66% 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 Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Mississippi
There are 326 obstetrics & gynecology physician records in Mississippi.
All 326 in Mississippi → Every provider in Madison → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Melissa Bacon, DOMadison, MS 391101356458012
- Erika Tanner, M.D.Madison, MS 391101679732788
- Duncan Guedon, M.D.Natchez, MS 391201386682011
- Melissa Jones, MDNatchez, MS 391201043453517
- Charlene Collier, MD, MPH, MHSRidgeland, MS 391571396928222
- Jonathan Bruno, MDCarthage, MS 390511861421406
- Justin Brewer, MDBrandon, MS 390471366628059
- Jennifer Hicks, M.D.Canton, MS 390461649231408
Common questions
What is Leslie F. Mason, M.D.'s NPI number?
Leslie F. Mason, M.D.'s National Provider Identifier (NPI) is 1275731929, issued on Jul 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leslie F. Mason, M.D. located?
The NPPES record lists a practice address at 115 Fountains Blvd, Madison, MS, 39110. Phone: (601) 853-0100. Providers update this record themselves, so call before visiting.
How can I verify Leslie F. Mason, M.D.'s license?
NPPES lists Mississippi license number 21521, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leslie F. Mason, M.D. prescribe under Medicare Part D?
In 2024, Leslie F. Mason, M.D. had 507 Medicare Part D claims for 74 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
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.