NPPES file of Aug 9, 2026

Regina Lo Sun, M. D.

Ophthalmology Physician · Pearland, TX

Regina Lo Sun, M. D. is an ophthalmology physician with a practice address in Pearland, Texas, and NPI 1104852466, issued on Jun 25, 2006. Check the license (Texas M6905, as entered in NPPES) on the Texas Medical Board; 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
1104852466
Name
Regina Lo Sun
Credential
M. D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
M6905 TX
48534 MN
Self-reported in NPPES; status is on the state search
Practice location
1535 Cullen Blvd, Pearland, TX 77581
Phone
(713) 436-1551
Enumerated
Jun 25, 2006
Record last updated
Jun 2, 2022
Fax
(713) 436-7491
Medicaid IDs
190063102 TX
190063101 TX
190063103 TX
Medicare enrollment
Enrolled (PECOS I20080130000367); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2002
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 1535 Cullen Blvd

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

  1. Nikki Kokel, ODOptometrist1295041945

Verify Regina Lo Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license M6905
    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 Texas license search

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2.9 times the Medicare Part D claims of the average ophthalmology physician in 2024

4,334 Medicare Part D claims for 992 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.

  1. Regina Sun4,334
  2. Specialty average1,518

Most prescribed

  1. Latanoprost915 claims
  2. Prednisolone Acetate589 claims
  3. Brimonidine Tartrate382 claims
  4. Ketorolac Tromethamine339 claims
  5. Moxifloxacin276 claims
  6. Dorzolamide-Timolol218 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): 83.7 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 score90.5
  2. Costout of 100 · 30%63.1
  3. Promoting interoperabilitynot scored (reweighted)
  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: $911.35

30 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. Regina Sun$911.35
  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. Berkeley Eye Institute, PLLCPearland, TX

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

Regina Lo Sun among 1,514 ophthalmology physician records in Texas

Regina Lo Sun, M. D. is one of 1,514 ophthalmology physician records with a practice address in Texas. 81% 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 22% of them.

  • NPI issued2006 · 22% of these records are older, 48% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2002 · median 2003 among the 1,052 with a school on file
  • Record last updated2022 · 60% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Texas

There are 1,514 ophthalmology physician records in Texas.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. David Booy, MDPearland, TX 775811194253435
  2. Jara CrearPearland, TX 775841255868741
  3. Bilal Shaukat, MDPearland, TX 775841154777886
  4. Bernard Milstein, MDLeague City, TX 775731932107497
  5. Alex Villarreal, MDLeague City, TX 775731811580459
  6. Chase Wilson, MDLeague City, TX 775731255994844
  7. Jonathan Grady, M.D.Lake Jackson, TX 775661386838563
  8. Jane Leidlein, M.D.Lake Jackson, TX 775661235110719

Common questions

What is Regina Lo Sun, M. D.'s NPI number?

Regina Lo Sun, M. D.'s National Provider Identifier (NPI) is 1104852466, issued on Jun 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Regina Lo Sun, M. D. located?

The NPPES record lists a practice address at 1535 Cullen Blvd, Pearland, TX, 77581. Phone: (713) 436-1551. Providers update this record themselves, so call before visiting.

How can I verify Regina Lo Sun, M. D.'s license?

NPPES lists Texas license number M6905, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Regina Lo Sun, M. D. prescribe under Medicare Part D?

In 2024, Regina Lo Sun, M. D. had 4,334 Medicare Part D claims for 992 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Regina Lo Sun, M. D.'s MIPS final score?

The 2023 MIPS final score is 83.7 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.