NPPES file of Aug 9, 2026

Thomas Guy Parker, M.D.

Ophthalmology Physician · West Monroe, LA

Thomas Guy Parker, M.D. is an ophthalmology physician with a practice address in West Monroe, Louisiana, and NPI 1538115399, issued on May 25, 2006. Check the license (Louisiana 022731, 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
1538115399
Name
Thomas Guy Parker
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
022731 LA
Self-reported in NPPES; status is on the state search
Practice location
1804 N 7TH St, West Monroe, LA 71291
Phone
(318) 325-2610
Enumerated
May 25, 2006
Record last updated
Jul 30, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(318) 325-7715
Medicaid ID
1485349 LA
Medicare enrollment
Enrolled (PECOS I20110104001227); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 1995
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 1804 N 7TH St

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

  1. Daniel BonnetteOphthalmology Physician1093235491
  2. Blaine BullochOphthalmology Physician1275277733
  3. Emily Duchesne, PA-CPhysician Assistant1750751616
  4. Raymond Haik, M.D.Ophthalmology Physician1962473652
  5. Joseph Humble, M.D.Ophthalmology Physician1538130273
  6. Thomas Marsala, PA-CPhysician Assistant1689719932

Verify Thomas Guy Parker 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 022731
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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70% more Medicare Part D claims than the average ophthalmology physician in 2024

2,583 Medicare Part D claims for 597 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Thomas Parker2,583
  2. Specialty average1,518

Most prescribed

  1. Latanoprost505 claims
  2. Moxifloxacin305 claims
  3. Prednisolone Acetate279 claims
  4. Ketorolac Tromethamine276 claims
  5. Brimonidine Tartrate207 claims
  6. Timolol Maleate180 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 practice group's MIPS final score for 2023 (Medicare payment program): 80.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score90.1
  2. Costout of 100 · 30%44.7
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $43.61

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Parker$43.61
  2. Specialty average$4,535.02

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. Joseph E Humble And Raymond Haik PtrsWest Monroe, LA

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

Thomas Guy Parker among 299 ophthalmology physician records in Louisiana

Thomas Guy Parker, M.D. is one of 299 ophthalmology physician records with a practice address in Louisiana. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 21% of them.

  • NPI issued2006 · 21% of these records are older, 41% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1995 · median 2000 among the 206 with a school on file
  • Record last updated2019 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Louisiana

There are 299 ophthalmology physician records in Louisiana.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Daniel BonnetteWest Monroe, LA 712911093235491
  2. Blaine BullochWest Monroe, LA 712911275277733
  3. Ruben Grigorian, M.D.West Monroe, LA 712911447440532
  4. Raymond Haik, M.D.West Monroe, LA 712911962473652
  5. Joseph Humble, M.D.West Monroe, LA 712911538130273
  6. Gerald Guidry, M.D.Alexandria, LA 713011427087824
  7. Thomas Robinson, M.D.Alexandria, LA 713011811979065
  8. Lisso Nachman, MDAlexandria, LA 713031073734323

Common questions

What is Thomas Guy Parker, M.D.'s NPI number?

Thomas Guy Parker, M.D.'s National Provider Identifier (NPI) is 1538115399, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Guy Parker, M.D. located?

The NPPES record lists a practice address at 1804 N 7TH St, West Monroe, LA, 71291. Phone: (318) 325-2610. Providers update this record themselves, so call before visiting.

How can I verify Thomas Guy Parker, M.D.'s license?

NPPES lists Louisiana license number 022731, 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 Thomas Guy Parker, M.D. prescribe under Medicare Part D?

In 2024, Thomas Guy Parker, M.D. had 2,583 Medicare Part D claims for 597 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Thomas Guy Parker, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.4 of 100, reported for the practice group. 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.