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2026 NPPES data Optometrist NPI 1619109329 O.D.
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Katherine Kwan, O.D.

Optometrist in Skokie, Illinois.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 in Optometrist, 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
267
Medicare Part D claims · 121 beneficiaries · Optometrist avg: 279
Generic prescribing
45%
generic claims · 55% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.1/100
▲ 10 pts above national avg 83.5 · Exceptional
Industry payments
$55.66
2 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Katherine Kwan, O.D. reported a CMS MIPS final score of 93.1/100 - above the 83.5 national average - and filed 267 Medicare Part D claims in 2024.

93.1/100
MIPS score · +10 vs avg
267
Part D claims, 2024
45%
generic prescribing
$55.66
industry payments (Sunshine Act)

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 Katherine Kwan, O.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 1619109329), first enumerated 08/13/2009.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 267 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 93.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $55.66 in reported industry payments (2 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

    Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Katherine Kwan, O.D.'s individual license status. Verify directly with the state medical board.

    Source: IDFPR 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 1619109329 · Optometrist

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1619109329
  • ENUM-MID 2009
  • TAX-MEGA 61K Optometrist
  • MIPS-ABOVE 93.1/100
  • RX-LIGHT 267
  • BOOK-LIGHT 2,629 in Illinois
  • PHOTO-FINISH Nancy Anibarro, O.D. · ±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

Katherine Kwan, O.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.

93 ≥ 69th percentile 69% 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%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. 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 Katherine Kwan, O.D. sits

This provider among optometrist peers

Across the 6,187 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Katherine Kwan, O.D. writes more Part D claims than 41% of them and scores higher on MIPS quality than 70% - placing this provider in the lower-volume, high-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: 95 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Katherine Kwan, O.D., Part D claim volume, percentile in specialty: 41 · MIPS quality, percentile: 70
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one optometrist peer from a representative sample of 60; the gold marker is Katherine Kwan, O.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Katherine Kwan, O.D.?

High performer (top quartile)

NPI registry status

Active

Issued 08/13/2009

NPI 1619109329

Primary specialty

Optometrist

High-volume

61,426 US NPIs in this specialty

Medicare Part D claims

267 4% vs specialty avg

2024 prescription claims

Specialty avg: 279

MIPS final score

93.1/100 9.6 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Illinois

How Optometrist compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist4.9%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.1%Pharmacist4.1%Optometrist1.1%
Largest specialties in Illinois (% of in-state providers)

Medicare quality performance, MIPS

Katherine Kwan, O.D.'s 2023 MIPS final score plotted against the Optometrist national average

High performer (top quartile)
MIPS Final Score
93.1/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%93.1%
MIPS final score (Optometrist) - 93.1/100 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

2650 RIDGE AVE.
Skokie, IL 60077
(847) 982-6710

Provider Details

NPI 1619109329
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 08/13/2009

CMS Quality Score (MIPS)

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

93.0872
Final Score
Measured-score avg: 83.5
80.7919
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Katherine Kwan, O.D. 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.

Endeavor Health Medical Group
Glenview, IL

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

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 Katherine Kwan, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$56

Largest payer

Glaukos Corporation

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 - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to Katherine Kwan, O.D.. To verify Katherine Kwan, O.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

Katherine Kwan, O.D. - brand share 55.0%
Optometrist average

55% brand-name claims vs 45% generic, on 267 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.

267
Total Claims
$54K
Total Drug Cost
121
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
460.167
Total Day Supply
12,950
Brand vs Generic
55% brand / 45% generic
Brand Drug Cost
$51K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
76.0 years
Avg HCC Risk Score
1.59
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

What Katherine Kwan, O.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
Prednisolone Acetate
 70
Latanoprost
 53
Ketorolac Tromethamine
 22
Restasis
Cyclosporine
20
Xiidra
Lifitegrast
16
Brimonidine Tartrate
 15
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
12

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

More Optometrist in IL → All providers in Illinois → Compare specialties →

Optometrist Overview

How Katherine Kwan, O.D. fits within the Optometrist landscape nationally.

61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider

Katherine Kwan, O.D.'s 267 claims are below the specialty average of 279.

Nationwide Optometrist peers with similar MIPS or enrollment year

Two federal-record peer sets for Kwan, both outside Illinois so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (93.1 here).

Mai Chu 93.1 MA Priya Patel 93.1 PA Nancy Anibarro 93.1 WA Susan Dini 93.1 WA

Same NPPES enumeration year (2009)

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

Luis Trujillo Philadelphia, PA Stephanie Mastores Phoenix, AZ Ashley Fazzary Charleston, SC Vanessa Santos Nevarez Bay Pines, FL

Nearby Optometrist Providers in Illinois

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

One of 2,629 Optometrist providers enrolled in Illinois, 5 are shown here.

Dr. Marvin Aal
O.D.
Chicago, IL
Dr. Russul Abbas
OD
Gurnee, IL
Dr. Sarah Abbott
OD
Park Ridge, IL
Dr. Mahmud Abdallah
OD
Alsip, IL
Nada Abdallah
Deerfield, IL

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Katherine Kwan, O.D.'s specialty? ▼
Katherine Kwan, O.D. specializes in Optometrist and practices in Skokie, Illinois. Credentials: O.D..
How much does Katherine Kwan, O.D. prescribe under Medicare Part D? ▼
In 2024, Katherine Kwan, O.D. wrote 267 Medicare Part D claims totaling $54K in drug costs for 121 beneficiaries.
What is Katherine Kwan, O.D.'s Medicare quality score? ▼
Katherine Kwan, O.D. has a CMS MIPS Final Score of 93.1/100 (Quality: 80.8). 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 Katherine Kwan, O.D. located? ▼
Katherine Kwan, O.D. is located at 2650 RIDGE AVE., Skokie, IL, 60077. Phone: (847) 982-6710.
What is Katherine Kwan, O.D.'s NPI number? ▼
Katherine Kwan, O.D.'s National Provider Identifier (NPI) is 1619109329, issued on 08/13/2009.
Does Katherine Kwan, O.D. prescribe more brand-name or generic drugs? ▼
Katherine Kwan, O.D.'s prescribing is 55% brand-name and 45% generic drugs by claim count, with $51K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Katherine Kwan, O.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Katherine Kwan, O.D.'s most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Ketorolac Tromethamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katherine Kwan, O.D. accept Medicare? ▼
Katherine Kwan, O.D. appears in CMS Medicare data with 267 Part D claims and 121 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Kwan, O.D.'s credentials? ▼
Katherine Kwan, O.D.'s NPI is 1619109329 with credentials O.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.