Karen Dumesnil, DO
Optometrist · Natchitoches, LA
Karen Dumesnil, DO is an optometrist with a practice address in Natchitoches, Louisiana, and NPI 1558978700, issued on Sep 30, 2020. Check the license (Louisiana 1923-859AT, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Dumesnil
- Credential
- DO
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 1923-859AT LA
Self-reported in NPPES; status is on the state search - Practice location
- 946 Keyser Ave, Natchitoches, LA 71457
- Phone
- (318) 357-8194
- Enumerated
- Sep 30, 2020
- Entity
- Type 1 · individual
Also registered at 946 Keyser Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pete Wardell, ODOptometrist1467495382
Verify Karen Dumesnil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license 1923-859ATCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
36% more Medicare Part D claims than the average optometrist in 2024
379 Medicare Part D claims for 147 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Latanoprost93 claims
- Brimonidine Tartrate48 claims
- Timolol Maleate46 claims
- Dorzolamide-Timolol30 claims
- Brimonidine Tartrate-Timolol18 claims
- Dorzolamide Hcl18 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 Medicare quality score for 2023: 63.2 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $313.14
6 payments, mostly food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc.. The 33,561 providers of this specialty with any payment received $749.79 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.
One hospital or facility affiliation
- Charles E Lyon, MD, ApmcShreveport, LA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
6 optometrist records list a Natchitoches practice address
They are 6 of the 556 NPPES records with a Natchitoches practice address, and 528 optometrist records in Louisiana.
All 6 in Natchitoches → All 528 in Louisiana → Every provider in Natchitoches →
Other optometrist records in Louisiana
- Scott Abbott, O.D.Baton Rouge, LA1881814135
- Kennedy Achord, ODBaton Rouge, LA1326876053
- Shonda Achord, O.D.Baton Rouge, LA1861593477
- Weston Acosta, ODCovington, LA1174205900
- Charles Adams, ODBossier City, LA1043240906
- Edwin Adams, ODGonzales, LA1437155793
- Lawrence Aderhold, ODBaton Rouge, LA1669418760
- Lauren Agnew, ODMandeville, LA1598311193
- Arthur Alford, ODGonzales, LA1033004049
- Jason Allemond, ODZachary, LA1649275447
Common questions
What is Karen Dumesnil, DO's NPI number?
Karen Dumesnil, DO's National Provider Identifier (NPI) is 1558978700, issued on Sep 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Karen Dumesnil, DO located?
The NPPES record lists a practice address at 946 Keyser Ave, Natchitoches, LA, 71457. Phone: (318) 357-8194. Providers update this record themselves, so call before visiting.
How can I verify Karen Dumesnil, DO's license?
NPPES lists Louisiana license number 1923-859AT, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Dumesnil, DO prescribe under Medicare Part D?
In 2024, Karen Dumesnil, DO had 379 Medicare Part D claims for 147 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.
What is Karen Dumesnil, DO's Medicare quality score?
The 2023 MIPS final score is 63.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.