NPPES file of Aug 9, 2026

Clifton M. Cowan, O.D.

Corneal and Contact Management Optometrist · Leesville, LA

Clifton M. Cowan, O.D. is a corneal and contact management optometrist with a practice address in Leesville, Louisiana, and NPI 1811980600, issued on Aug 26, 2005. Check the license (Louisiana 953-128T, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1811980600
Name
Clifton M. Cowan
Credential
O.D.
Primary taxonomy
Corneal and Contact Management Optometrist 152WC0802X
License number
953-128T LA
Self-reported in NPPES; status is on the state search
Practice location
1100 N. 5TH St., Leesville, LA 71446
Phone
(337) 239-2020
Enumerated
Aug 26, 2005
Record last updated
Oct 20, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(337) 239-0755
Medicaid ID
1342262 LA
Medicare enrollment
Enrolled (PECOS I20100626000354); accepts Medicare assignment
Medical or professional school
University Of Houston - College Of Optometry, 1984
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 1100 N. 5TH St.

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

  1. Cherri Cowan, O.D.Pediatric Optometrist1164417374

Verify Clifton M. Cowan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
    Search for license 953-128T
    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
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10% fewer Medicare Part D claims than the average corneal and contact management optometrist in 2024

202 Medicare Part D claims for 68 beneficiaries, against an average of 225 among the 585 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.

  1. Clifton Cowan202
  2. Specialty average225

Most prescribed

  1. Latanoprost54 claims
  2. Neomycin-Polymyxin-Dexameth46 claims
  3. Loteprednol Etabonate27 claims
  4. Timolol Maleate11 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: $91.83

1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 610 providers of this specialty with any payment received $1,035.17 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Clifton Cowan$91.83
  2. Specialty average$1,035.17

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. Thomas Vision Clinic, IncLeesville, LA

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

Corneal and Contact Management Optometrist providers in Louisiana

There are 5 corneal and contact management optometrist records in Louisiana.

The 4 corneal and contact management optometrist records with the nearest ZIP codes

  1. Mercy Elahi-Neal, O.D.West Monroe, LA 712911306859848
  2. Michael Abbott, O.D.Baton Rouge, LA 708081720038573
  3. Henry Carter, O.D.Lafayette, LA 705031689773137
  4. Steven Zegar, O.D.Slidell, LA 704611275525107

Common questions

What is Clifton M. Cowan, O.D.'s NPI number?

Clifton M. Cowan, O.D.'s National Provider Identifier (NPI) is 1811980600, issued on Aug 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Clifton M. Cowan, O.D. located?

The NPPES record lists a practice address at 1100 N. 5TH St., Leesville, LA, 71446. Phone: (337) 239-2020. Providers update this record themselves, so call before visiting.

How can I verify Clifton M. Cowan, O.D.'s license?

NPPES lists Louisiana license number 953-128T, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.

How much does Clifton M. Cowan, O.D. prescribe under Medicare Part D?

In 2024, Clifton M. Cowan, O.D. had 202 Medicare Part D claims for 68 beneficiaries; the average among corneal and contact management optometrist prescribers was 225. 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.