NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1114999729 MD
Verify on CMS → Mark Brown, MD
Ophthalmology Physician in Mobile, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 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
653
Medicare Part D claims · 286 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.5/100
▲ 13 pts above national avg 83.1 · Exceptional
Industry payments
$768.01
36 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Brown, MD reported a CMS MIPS final score of 96.5/100 - above the 83.1 national average - and filed 653 Medicare Part D claims in 2023.
- 96.5/100
- MIPS score · +13 vs avg
- 653
- Part D claims, 2023
- 88%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Mark Brown, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 17% higher than 83% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Mark Brown, MD sits
This provider among ophthalmology physician peers
Across the 9,866 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mark Brown, MD writes more Part D claims than 32% of them and scores higher on MIPS quality than 76% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one ophthalmology physician peer from a representative sample of 60; the gold marker is Mark Brown, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mark Brown, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mark Brown, MD?
High performer (top quartile)Primary specialty
Ophthalmology Physician
Medicare Part D claims
653 54% vs specialty avg
MIPS final score
96.5/100 13.4 pts vs avg
Specialty distribution in Alabama
How Ophthalmology Physician compares to other specialties among Alabama providers
Medicare quality performance, MIPS
Mark Brown, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 96.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) - 96.5/100 vs national avg 83.1
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).
Mark Brown, MD appears in the CMS NPPES registry as an Ophthalmology Physician provider holding MD credentials at 6576 AIRPORT BLVD STE B200, Mobile, AL, 36608, with a listed phone of (251) 650-5437. NPI 1114999729 was issued on 02/07/2006.
Medicare Part D records for calendar year 2023 show 653 prescription claims written by this provider, covering 286 Medicare beneficiaries and totaling roughly $524K in drug spend, split 12% brand-name and 88% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.5/100 for the 2023 performance year (Quality 93.6), compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 enrolled providers across 56 states and an average of 1,420 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1114999729 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/07/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
96.4835
Final Score
Avg: 83.1
93.6064
Quality
100
Promoting Interoperability
Reporting: Individual
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 Brown, MD. Source: openpaymentsdata.cms.gov.
Total received
$768
Largest payer
Amgen 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.
Brand vs generic prescribing mix · Typical
Mark Brown, MD - brand share 12.0%
Ophthalmology Physician average
12% brand-name claims vs 88% generic, on 653 2023 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 2023.
653
Total Claims
$524K
Total Drug Cost
286
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,145
- Total Day Supply
- 30,950
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $503K
- Generic Drug Cost
- $21K
- Antibiotic Claims
- 374
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 1.13
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 24, 65-74: 113, 75-84: 116, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Brown, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Doxycycline Hyclate
Doxycycline Hyclate
365 claims
- Erythromycin 103
Erythromycin
103 claims
- Neomycin-Polymyxin… 53
Neomycin-Polymyxin-Dexameth
53 claims
- Prednisolone Acetate 30
Prednisolone Acetate
30 claims
- Olopatadine Hcl 17
Olopatadine Hcl
17 claims
- Azasite 11
Azasite
11 claims
| Drug | Claims |
|---|---|
| Doxycycline Hyclate | 365 |
| Erythromycin Erythromycin Base | 103 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 53 |
| Prednisolone Acetate | 30 |
| Olopatadine Hcl | 17 |
| Azasite Azithromycin | 11 |
* 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 Brown, MD fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Mark Brown, MD's 653 claims are below the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Brown.
Dr. Michael Albert
MD
Birmingham, AL
Dr. Matthew Albright
MD
Birmingham, AL
Dr. Aric Aldridge
M.D.
Dothan, AL
Dr. Thomas Allison
M.D.
Birmingham, AL
Dr. Melton Ambrose
M.D.
Killen, AL
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Alabama medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Ophthalmology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Alabama
Frequently Asked Questions
What is Mark Brown, MD's specialty? ▼
Mark Brown, MD specializes in Ophthalmology Physician and practices in Mobile, Alabama. Credentials: MD.
How much does Mark Brown, MD prescribe under Medicare Part D? ▼
In 2023, Mark Brown, MD wrote 653 Medicare Part D claims totaling $524K in drug costs for 286 beneficiaries.
What is Mark Brown, MD's Medicare quality score? ▼
Mark Brown, MD has a CMS MIPS Final Score of 96.5/100 (Quality: 93.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mark Brown, MD located? ▼
Mark Brown, MD is located at 6576 AIRPORT BLVD STE B200, Mobile, AL, 36608. Phone: (251) 650-5437.
What is Mark Brown, MD's NPI number? ▼
Mark Brown, MD's National Provider Identifier (NPI) is 1114999729, issued on 02/07/2006.
Does Mark Brown, MD prescribe more brand-name or generic drugs? ▼
Mark Brown, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $503K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does Mark Brown, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Brown, MD's most frequently prescribed drugs include Doxycycline Hyclate, Erythromycin, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Brown, MD accept Medicare? ▼
Mark Brown, MD appears in CMS Medicare data with 653 Part D claims and 286 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Brown, MD's credentials? ▼
Mark Brown, MD's NPI is 1114999729 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 (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.