NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1194712893 MD
Verify on CMS → Mark Lindsay, MD
Ophthalmology Physician in Bryan, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,388 in Ophthalmology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
678
Medicare Part D claims · 140 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$176.33
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Mark Lindsay, MD filed 678 Medicare Part D claims in 2024 as an Ophthalmology Physician in Bryan, Texas, prescribing 68% generic.
- 678
- Part D claims, 2024
- 68%
- generic prescribing
- $176.33
- industry payments (Sunshine Act)
- ≥68th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Mark Lindsay, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1194712893), first enumerated 09/29/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 678 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$176.33 in reported industry payments (4 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Mark Lindsay, MD's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1194712893 · Ophthalmology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1194712893
- ENUM-LEGACY 2005
- TAX-MID 22K Ophthalmology Physician
- RX-LIGHT 678
- BOOK-LIGHT 1,439 in Texas
- PHOTO-ENUM Rangram Chandran, MD · 2005
Mark Lindsay, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
678 ≥ 68th percentile 68% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Mark Lindsay, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Lindsay, MD?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
678 54% vs specialty avg
Specialty distribution in Texas
How Ophthalmology Physician compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Ophthalmology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1194712893 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/29/2005 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mark Lindsay, MD. Source: openpaymentsdata.cms.gov.
Total received
$176
Largest payer
Bausch & Lomb Americas Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Mark Lindsay, MD. To verify Mark Lindsay, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Mark Lindsay, MD - brand share 32.0%
Ophthalmology Physician average
32% brand-name claims vs 68% generic, on 678 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
678
Total Claims
$86K
Total Drug Cost
140
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,265.367
- Total Day Supply
- 36,704
- Brand vs Generic
- 32% brand / 68% generic
- Brand Drug Cost
- $68K
- Generic Drug Cost
- $18K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mark Lindsay, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
216 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
123 claims
- Timolol Maleate 60
Timolol Maleate
60 claims
- Restasis 38
Restasis
38 claims
- Prednisolone Acetate 27
Prednisolone Acetate
27 claims
- Rocklatan 26
Rocklatan
26 claims
- Lumigan 20
Lumigan
20 claims
- Brimonidine Tartra… 18
Brimonidine Tartrate-Timolol
18 claims
| Drug | Claims |
|---|---|
| Latanoprost | 216 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 123 |
| Timolol Maleate | 60 |
| Restasis Cyclosporine | 38 |
| Prednisolone Acetate | 27 |
| Rocklatan Netarsudil Mesylat/Latanoprost | 26 |
| Lumigan Bimatoprost | 20 |
| Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol | 18 |
| Combigan Brimonidine Tartrate/Timolol | 15 |
| Brinzolamide | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Mark Lindsay, MD fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Mark Lindsay, MD's 678 claims are below the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Lindsay, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Lindsay.
One of 1,439 Ophthalmology Physician providers enrolled in Texas, 5 are shown here.
Dr. Justin Aaker
MD
Georgetown, TX
Dr. Asad Abbas
M.D.
Baytown, TX
Dr. Ashkan Abbey
M.D.
Dallas, TX
Dr. Meredith Abbott
MD
Dallas, TX
Dr. Musa Abdelaziz
MD
Southlake, TX
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark Lindsay, MD's specialty? ▼
Mark Lindsay, MD specializes in Ophthalmology Physician and practices in Bryan, Texas. Credentials: MD.
How much does Mark Lindsay, MD prescribe under Medicare Part D? ▼
In 2024, Mark Lindsay, MD wrote 678 Medicare Part D claims totaling $86K in drug costs for 140 beneficiaries.
Where is Mark Lindsay, MD located? ▼
Mark Lindsay, MD is located at 2725 E 29TH ST, Bryan, TX, 77802. Phone: (979) 776-2020.
What is Mark Lindsay, MD's NPI number? ▼
Mark Lindsay, MD's National Provider Identifier (NPI) is 1194712893, issued on 09/29/2005.
Does Mark Lindsay, MD prescribe more brand-name or generic drugs? ▼
Mark Lindsay, MD's prescribing is 32% brand-name and 68% generic drugs by claim count, with $68K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Mark Lindsay, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark Lindsay, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Lindsay, MD accept Medicare? ▼
Mark Lindsay, MD appears in CMS Medicare data with 678 Part D claims and 140 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Lindsay, MD's credentials? ▼
Mark Lindsay, MD's NPI is 1194712893 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.