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2026 NPPES data Ophthalmology Physician NPI 1548268162 M.D.
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Ray Chan, M.D.

Ophthalmology Physician in Arlington, 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
586
Medicare Part D claims · 177 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
50%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.6/100
▼ 9 pts below national avg 83.5 · Mid-tier
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Ray Chan, M.D. reported a CMS MIPS final score of 74.6/100 - below the 83.5 national average - and filed 586 Medicare Part D claims in 2024.

74.6/100
MIPS score · -9 vs avg
586
Part D claims, 2024
50%
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.

Federal trust snapshot

What official records show about Ray Chan, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1548268162), first enumerated 07/08/2005.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 586 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 74.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • State context

    State board disciplinary context

    Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Ray Chan, M.D.'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 1548268162 · Ophthalmology Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1548268162
  • ENUM-LEGACY 2005
  • TAX-MID 22K Ophthalmology Physician
  • MIPS-BELOW 74.6/100
  • RX-LIGHT 586
  • BOOK-LIGHT 1,439 in Texas
  • PHOTO-FINISH Sami Kabbara, MD · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Ray Chan, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

75 ≥ 13th percentile 13% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Ray Chan, M.D. sits

This provider among ophthalmology physician peers

Across the 8,767 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ray Chan, M.D. writes more Part D claims than 30% of them and scores higher on MIPS quality than 16% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 43Ray Chan, M.D., Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 16
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 Ray Chan, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Ray Chan, M.D. 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 Ray Chan, M.D.?

Below national average

NPI registry status

Active

Issued 07/08/2005

NPI 1548268162

Primary specialty

Ophthalmology Physician

Mid-sized

22,388 US NPIs in this specialty

Medicare Part D claims

586 61% vs specialty avg

2024 prescription claims

Specialty avg: 1,490

MIPS final score

74.6/100 8.9 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Texas

How Ophthalmology Physician compares to other specialties among Texas providers

Texas providers
Behavior Technician6%Student in an Organized Heal…5.3%Family Nurse Practitioner4.5%Professional Counselor4.4%Pharmacist4.3%Speech-Language Pathologist3.9%Ophthalmology Physician0.3%
Largest specialties in Texas (% of in-state providers)

Medicare quality performance, MIPS

Ray Chan, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

Below national average
MIPS Final Score
74.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%74.6%
MIPS final score (Ophthalmology Physician) - 74.6/100 vs national avg 83.5
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

1329 E PIONEER PKWY
Arlington, TX 76010
(817) 265-2672

Provider Details

NPI 1548268162
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 07/08/2005

CMS Quality Score (MIPS)

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

74.5984
Final Score
Measured-score avg: 83.5
56.1252
Quality
59.2027
Cost
100
Promoting Interoperability

Reporting: Group practice

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 Ray Chan, M.D.. To verify Ray Chan, M.D.'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 · Brand-heavy

Ray Chan, M.D. - brand share 50.0%
Ophthalmology Physician average

50% brand-name claims vs 50% generic, on 586 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.

586
Total Claims
$108K
Total Drug Cost
177
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,299.067
Total Day Supply
38,207
Brand vs Generic
50% brand / 50% generic
Brand Drug Cost
$97K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
1.34
Gender Split
59% female / 41% male
Age Distribution
<65: 11, 65-74: 74, 75-84: 72, 85+: 20

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Ray Chan, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Latanoprost
 230
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
96
Timolol Maleate
 34
Brimonidine Tartrate
 33
Fluorometholone
 28
Restasis
Cyclosporine
24
Lumigan
Bimatoprost
22
Vyzulta
Latanoprostene Bunod
21
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
17
Loteprednol Etabonate
 17

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

More Ophthalmology Physician in TX → All providers in Texas → Compare specialties →

Ophthalmology Physician Overview

How Ray Chan, M.D. 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

Ray Chan, M.D.'s 586 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 Chan, both outside Texas so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (74.6 here).

Sami Kabbara 74.6 CA Ronald Mancini 74.6 CA Jill Brody 74.6 IL Bhagvanji Meghpara 74.6 IL

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Bruce Miller Plantation, FL Robert Bailey Plymouth Meeting, PA Stephanie Turner Greenwood, SC Jamie Coleman Walla Walla, WA

Nearby Ophthalmology Physician Providers in Texas

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

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 Ray Chan, M.D.'s specialty? ▼
Ray Chan, M.D. specializes in Ophthalmology Physician and practices in Arlington, Texas. Credentials: M.D..
How much does Ray Chan, M.D. prescribe under Medicare Part D? ▼
In 2024, Ray Chan, M.D. wrote 586 Medicare Part D claims totaling $108K in drug costs for 177 beneficiaries.
What is Ray Chan, M.D.'s Medicare quality score? ▼
Ray Chan, M.D. has a CMS MIPS Final Score of 74.6/100 (Quality: 56.1, Cost: 59.2). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ray Chan, M.D. located? ▼
Ray Chan, M.D. is located at 1329 E PIONEER PKWY, Arlington, TX, 76010. Phone: (817) 265-2672.
What is Ray Chan, M.D.'s NPI number? ▼
Ray Chan, M.D.'s National Provider Identifier (NPI) is 1548268162, issued on 07/08/2005.
Does Ray Chan, M.D. prescribe more brand-name or generic drugs? ▼
Ray Chan, M.D.'s prescribing is 50% brand-name and 50% generic drugs by claim count, with $97K 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 Ray Chan, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ray Chan, M.D.'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 Ray Chan, M.D. accept Medicare? ▼
Ray Chan, M.D. appears in CMS Medicare data with 586 Part D claims and 177 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ray Chan, M.D.'s credentials? ▼
Ray Chan, M.D.'s NPI is 1548268162 with credentials M.D.. 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.
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 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

Compiled from official public sources by the editorial process.

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.