NPPES file of Aug 9, 2026

Tessa M. Markus, O.D.

Optometrist · Houston, TX

Tessa M. Markus, O.D. is an optometrist with a practice address in Houston, Texas, and NPI 1841261260, issued on Feb 1, 2006. Check the license (Texas 5421TG, as entered in NPPES) with the Texas 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841261260
Name
Tessa M. Markus
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
5421TG TX
Self-reported in NPPES; status is on the state search
Practice location
13333 Dotson RD, Houston, TX 77070
Phone
(281) 890-1784
Enumerated
Feb 1, 2006
Record last updated
May 30, 2025
Fax
(281) 890-5733
Medicare enrollment
Enrolled (PECOS I20040607000697); accepts Medicare assignment
Medical or professional school
University Of Houston - College Of Optometry, 1997
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 13333 Dotson RD

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

  1. Zane Anwar, M.D.Ophthalmology Physician1699110213
  2. Anne Chang-Godinich, M.D.Ophthalmology Physician1760479596

Verify Tessa M. Markus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 5421TG
    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
Find the Texas license search

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2.3 times the Medicare Part D claims of the average optometrist in 2024

627 Medicare Part D claims for 154 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Tessa Markus627
  2. Specialty average277

Most prescribed

  1. Latanoprost174 claims
  2. Dorzolamide-Timolol77 claims
  3. Brimonidine Tartrate60 claims
  4. Dorzolamide Hcl48 claims
  5. Prednisolone Acetate46 claims
  6. Timolol Maleate42 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 MIPS final score for 2023 (Medicare payment program): 13.3 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.

  1. Qualityout of 100 · 30% of the final score26.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $212.41

9 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tessa Markus$212.41
  2. Specialty average$769.99

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. 1960 Eye Surgeons, P.A.Houston, TX

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

Tessa M. Markus among 5,006 optometrist records in Texas

Tessa M. Markus, O.D. is one of 5,006 optometrist records with a practice address in Texas. 74% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 65% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1997 · median 2010 among the 2,894 with a school on file
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

770 optometrist records list a practice address in Houston

They are 770 of the 61,221 NPPES records with a practice address in Houston, and 5,006 optometrist records in Texas.

The 8 optometrist records with the nearest ZIP codes

  1. Nicole Brassell, O.D.Houston, TX 770701366425589
  2. David Bridges, O. D.Houston, TX 770701659351252
  3. Polyanna De La Garza, ODHouston, TX 770701538294376
  4. Cristina De La Pena, O.D.Houston, TX 770701396952644
  5. Alan Deshazo, ODHouston, TX 770701497815401
  6. Rick Dinh, O.DHouston, TX 770701093841751
  7. Minh Dong, O.D.Houston, TX 770701770624041
  8. Claudio Lagunas, O.D.Houston, TX 770701417977919

Common questions

What is Tessa M. Markus, O.D.'s NPI number?

Tessa M. Markus, O.D.'s National Provider Identifier (NPI) is 1841261260, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tessa M. Markus, O.D. located?

The NPPES record lists a practice address at 13333 Dotson RD, Houston, TX, 77070. Phone: (281) 890-1784. Providers update this record themselves, so call before visiting.

How can I verify Tessa M. Markus, O.D.'s license?

NPPES lists Texas license number 5421TG, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Tessa M. Markus, O.D. prescribe under Medicare Part D?

In 2024, Tessa M. Markus, O.D. had 627 Medicare Part D claims for 154 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Tessa M. Markus, O.D.'s MIPS final score?

The 2023 MIPS final score is 13.3 of 100. 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.