Medicare Enrolled

Dr. Mark Clark, M.D.

Optician · Austin, TX
1305 W 34TH ST, Austin, TX 78705
5124596599
Registered in NPPES since 2006
NPI: 1376568691 verify on NPPES ↗
High
DATA COVERAGE
Data in 3 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Clark from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Clark

Dr. Mark Clark is an optician specialist in Austin, TX, with 20 years of NPI registration.

Between the years covered by Open Payments, Dr. Clark received a total of $4,851 from 19 pharmaceutical and/or device companies across 279 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Clark is High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 20 years of NPI registration $4,851 industry payments

Industry Payment Transparency

Open Payments through 2021 ↗
$4,851
Total received (2018-2021)
Avg $1,213/year across 4 years
Top 27% in TX for optician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
19
Companies
279
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →

Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2021
$31
2020
$1,481
2019
$1,311
2018
$2,028

Payments by company (2021)

GlaxoSmithKline, LLC.
$31
Top 3 companies account for 100.0% of 2021 payments
All-time payments by company (2018-2021) ›
GlaxoSmithKline, LLC.
$1,747
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,018
Philips Electronics North America Corporation
$452
AstraZeneca Pharmaceuticals LP
$374
Genentech USA, Inc.
$320
Actelion Pharmaceuticals US, Inc.
$244
CSL Behring
$121
Regeneron Healthcare Solutions, Inc.
$114
Janssen Pharmaceuticals, Inc
$84
Alexion Pharmaceuticals, Inc.
$80
Mylan Specialty L.P.
$80
Mallinckrodt LLC
$73
Theravance Biopharma, Inc.
$34
Circassia Pharmaceuticals Inc
$27
Allergan Inc.
$18
Takeda Pharmaceuticals U.S.A., Inc.
$18
Breathe Technologies, Inc.
$16
GENZYME CORPORATION
$16
Teva Pharmaceuticals USA, Inc.
$15
Top 3 companies account for 66.3% of all-time payments
Associated products mentioned in payments ›
(8874) inCourage · (8876) Vest Therapy Und · ACTHAR · ANORO · ANORO ELLIPTA · AVYCAZ · BEVESPI AEROSPHERE · BREO · DUAKLIR PRESSAIR · DUPIXENT · Esbriet · FASENRA · GLASSIA · LIFE2000 · NIOX VERO · NUCALA · OFEV · Perforomist · QVAR · Respiratoriy Care Undiv · SOLIRIS · SPIRIVA · SPIRIVA RESPIMAT · STIOLTO RESPIMAT · SYMBICORT · TRELEGY ELLIPTA · Trilogy 100 · ULTOMIRIS · UPTRAVI · Ultomiris · VIBATIV · Wellcentive Undiv · XARELTO · Xofluza · Xolair · Yupelri · Zemaira · inCourage
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Looking for an optician specialist in Austin?
Compare opticians in the Austin area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Opticians in nearby ZIP areas
156
County median income
$97,169
Nearest hospital to ZIP centroid (approximate)
ASCENSION SETON MEDICAL CENTER AUSTIN
0.0 mi

Data Sources

Provider Registry ✓ NPPES NPPES snapshot; verify current record
Medicare Enrollment ✓ PECOS PECOS snapshot
Practice Data — No data N/A
Industry Payments ✓ Open Payments CY 2021
Disciplinary History — Not included N/A

This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Clark is an optician specialist, with 20 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Does Dr. Clark receive payments from pharmaceutical companies?
Yes. Dr. Clark received a total of $4,851 from 19 companies across 279 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
What does Data Coverage mean?
Data Coverage (currently High for Dr. Clark) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →

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About this page

This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Industry payment disclosure alone establishes neither wrongdoing nor legality. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →