2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1578514840 MD
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SAMI DAHR, MD

Retina Specialist (Ophthalmology) Physician in HOUSTON, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
171
Medicare Part D claims · 59 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.5093/100
▼ 6 pts below national avg 83.1 · [object Object]
What the federal data reveals: SAMI DAHR, MD is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in HOUSTON, Texas with a Medicare Part D prescribing footprint of 171 claims across 59 beneficiaries — 35% brand-name prescribing . Their CMS MIPS Final Score of 77.5093/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: SAMI DAHR, MD reported a CMS MIPS final score of 77.5093 out of 100, below the 83.1 national average, and filed 171 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SAMI DAHR, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

SAMI DAHR, MD at a glance

Below national average

NPI registry status

Active

Issued 05/12/2006

NPI 1578514840

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

171 69% vs specialty avg

2023 prescription claims

Specialty avg: 558

MIPS final score

77.5093/100 5.590699999999998% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Texas

How Retina Specialist (Ophthalmology) Physician compares to other specialties among Texas providers

Texas providers

Retina Specialist (Ophthalmology) Physician share within Texas

1. Retina Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Retina Specialist (Ophthalmology) Physician share within Texas

Medicare quality performance — MIPS

SAMI DAHR, MD's 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average

Below national average
MIPS Final Score
77.5093/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Retina Specialist (Ophthalmology) Physician) — 77.5093/100 vs national avg 83.1

0%100%National avg83%77.5%
MIPS final score (Retina Specialist (Ophthalmology) Physician) — 77.5093/100 vs national avg 83.1

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).

SAMI DAHR, MD is a Retina Specialist (Ophthalmology) Physician provider practicing in HOUSTON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1578514840. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SAMI DAHR, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 6400 FANNIN ST STE 1800, HOUSTON, TX, 77030, with a listed phone of (713) 486-9400. NPI 1578514840 was issued on 05/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAHR most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 171 prescription claims written by this provider, covering 59 Medicare beneficiaries and totaling roughly $13K in drug spend, split 35% brand-name and 65% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.5093/100 for the 2023 performance year (Quality 66.6499, Cost 50.9366), compared with the national average of 83.1.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

6400 FANNIN ST STE 1800
HOUSTON, TX 77030

Provider Details

NPI 1578514840
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 05/12/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

77.5093
Final Score
Avg: 83.1
66.6499
Quality
50.9366
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SAMI DAHR, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

UT PHYSICIANS
HOUSTON, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 SAMI DAHR, MD. To verify SAMI DAHR, 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

SAMI DAHR, MD — brand share 35.0%
Specialty average (est.)

35% brand-name claims vs 65% generic, on 171 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.

171
Total Claims
$13K
Total Drug Cost
59
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
292
Total Day Supply
8,227
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$6K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
69.9 years
Avg HCC Risk Score
1.77
Gender Split
49% female / 51% male
Age Distribution
<65: 16, 65-74: 21, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
41
Prednisolone Acetate
18
Difluprednate
16
Atropine Sulfate
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Retina Specialist (Ophthalmology) Physician Overview

How SAMI DAHR, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

SAMI DAHR, MD's 171 claims are below the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as DAHR.

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SAMI DAHR, MD's specialty?
SAMI DAHR, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in HOUSTON, Texas. Credentials: MD.
How much does SAMI DAHR, MD prescribe under Medicare Part D?
In 2023, SAMI DAHR, MD wrote 171 Medicare Part D claims totaling $13K in drug costs for 59 beneficiaries.
What is SAMI DAHR, MD's Medicare quality score?
SAMI DAHR, MD has a CMS MIPS Final Score of 77.5093/100 (Quality: 66.6499, Cost: 50.9366). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SAMI DAHR, MD located?
SAMI DAHR, MD is located at 6400 FANNIN ST STE 1800, HOUSTON, TX, 77030. Phone: (713) 486-9400.
What is SAMI DAHR, MD's NPI number?
SAMI DAHR, MD's National Provider Identifier (NPI) is 1578514840, issued on 05/12/2006.
Does SAMI DAHR, MD prescribe more brand-name or generic drugs?
SAMI DAHR, MD's prescribing is 35% brand-name and 65% generic drugs by claim count, with $6K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does SAMI DAHR, MD prescribe most often?
Based on 2023 Medicare Part D data, SAMI DAHR, MD's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Difluprednate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAMI DAHR, MD accept Medicare?
SAMI DAHR, MD appears in CMS Medicare data with 171 Part D claims and 59 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAMI DAHR, MD's credentials?
SAMI DAHR, MD's NPI is 1578514840 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

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