NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1770044323 MBBS
Verify on CMS → Sarah Martin, MBBS
Ophthalmology Physician in Washington, District of Columbia.
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
395
Medicare Part D claims · 94 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$326.29
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sarah Martin, MBBS filed 395 Medicare Part D claims in 2023 as an Ophthalmology Physician in Washington, District of Columbia, prescribing 70% generic.
- 395
- Part D claims, 2023
- 70%
- generic prescribing
- $326.29
- industry payments (Sunshine Act)
- ≥57th
- 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.
CMS NPPES provider registry desk
NPI 1770044323 · Ophthalmology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1770044323
- ENUM-RECENT 2019
- TAX-MID 22K Ophthalmology Physician
- RX-LIGHT 395
- BOOK-THIN 86 in District of Columbia
- PHOTO-ENUM Merry Ruan · 2019
Sarah Martin, MBBS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
395 ≥ 57th percentile 57% of 1,370,886 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 · 2023
◑
Board-eligible specialty (heuristic, not verified)
Sarah Martin, MBBS 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 Sarah Martin, MBBS?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
395 72% vs specialty avg
Specialty distribution in District of Columbia
How Ophthalmology Physician compares to other specialties among District of Columbia 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 | 1770044323 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MBBS |
| Gender | Female |
| NPI Issued | 03/27/2019 |
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 Sarah Martin, MBBS. Source: openpaymentsdata.cms.gov.
Total received
$326
Largest payer
Alcon Vision LLC
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 · Above average
Sarah Martin, MBBS - brand share 30.0%
Ophthalmology Physician average
30% brand-name claims vs 70% generic, on 395 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.
395
Total Claims
$25K
Total Drug Cost
94
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 488
- Total Day Supply
- 13,228
- Brand vs Generic
- 30% brand / 70% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $12K
Patient Demographics
- Average Patient Age
- 75.8 years
- Avg HCC Risk Score
- 1.64
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sarah Martin, MBBS prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
159 claims
- Dorzolamide-Timolol 59
Dorzolamide-Timolol
59 claims
- Brimonidine Tartrate 57
Brimonidine Tartrate
57 claims
- Brinzolamide 33
Brinzolamide
33 claims
- Timolol Maleate 19
Timolol Maleate
19 claims
- Prednisolone Acetate 13
Prednisolone Acetate
13 claims
| Drug | Claims |
|---|---|
| Latanoprost | 159 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 59 |
| Brimonidine Tartrate | 57 |
| Brinzolamide | 33 |
| Timolol Maleate | 19 |
| Prednisolone Acetate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Sarah Martin, MBBS 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
Sarah Martin, MBBS's 395 claims are below the specialty average of 1,420.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Martin, both outside District of Columbia so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2019)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in District of Columbia
Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Martin.
One of 86 Ophthalmology Physician providers enrolled in District of Columbia, 5 are shown here.
Dr. Abdullah Abou-Samra
MD
Washington, DC
Dr. Andrew Adelson
M.D.
Washington, DC
Dr. Wejdan Al-Thawabieh
M.D
Washington, DC
Dr. Bogdan Alexandrescu
M.D.
Washington, DC
Dr. Shatha Alfreihi
M.D.
Washington, DC
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sarah Martin, MBBS's specialty? ▼
Sarah Martin, MBBS specializes in Ophthalmology Physician and practices in Washington, District of Columbia. Credentials: MBBS.
How much does Sarah Martin, MBBS prescribe under Medicare Part D? ▼
In 2023, Sarah Martin, MBBS wrote 395 Medicare Part D claims totaling $25K in drug costs for 94 beneficiaries.
Where is Sarah Martin, MBBS located? ▼
Sarah Martin, MBBS is located at 2041 GEORGIA AVE NW, Washington, DC, 20060. Phone: (202) 865-4833.
What is Sarah Martin, MBBS's NPI number? ▼
Sarah Martin, MBBS's National Provider Identifier (NPI) is 1770044323, issued on 03/27/2019.
Does Sarah Martin, MBBS prescribe more brand-name or generic drugs? ▼
Sarah Martin, MBBS's prescribing is 30% brand-name and 70% generic drugs by claim count, with $12K 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 Sarah Martin, MBBS prescribe most often? ▼
Based on 2023 Medicare Part D data, Sarah Martin, MBBS's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Martin, MBBS accept Medicare? ▼
Sarah Martin, MBBS appears in CMS Medicare data with 395 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Martin, MBBS's credentials? ▼
Sarah Martin, MBBS's NPI is 1770044323 with credentials MBBS. 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.
- 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
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.