2026 NPPES data Ophthalmology Physician NPI 1265796585 MD, PHD
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MICHELLE KRON-GRAY, MD, PHD

Ophthalmology Physician in WHEATON, Illinois. 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
921
Medicare Part D claims · 314 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
50%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1036/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$139.27
6 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHELLE KRON-GRAY, MD, PHD reported a CMS MIPS final score of 94.1036/100 — above the 83.1 national average — and filed 921 Medicare Part D claims in 2023.

94.1036/100
MIPS score · +11 vs avg
921
Part D claims, 2023
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.

MICHELLE KRON-GRAY, MD, PHD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

94 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

MICHELLE KRON-GRAY, MD, PHD 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).

What does the federal data show about MICHELLE KRON-GRAY, MD, PHD?

High performer (top quartile)

NPI registry status

Active

Issued 07/02/2012

NPI 1265796585

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

921 35% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

94.1036/100 11.003600000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Illinois

How Ophthalmology Physician compares to other specialties among Illinois providers

Illinois providers

Ophthalmology Physician share within Illinois

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Illinois

Medicare quality performance — MIPS

MICHELLE KRON-GRAY, MD, PHD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
94.1036/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 94.1036/100 vs national avg 83.1

0%100%National avg83%94.1%
MIPS final score (Ophthalmology Physician) — 94.1036/100 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).

MICHELLE KRON-GRAY, MD, PHD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD, PHD credentials at 2015 N MAIN ST, WHEATON, IL, 60187, with a listed phone of (630) 668-8250. NPI 1265796585 was issued on 07/02/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KRON-GRAY 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 921 prescription claims written by this provider, covering 314 Medicare beneficiaries and totaling roughly $104K in drug spend, split 50% brand-name and 50% 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 94.1036/100 for the 2023 performance year (Quality 82.5938), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 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

2015 N MAIN ST
WHEATON, IL 60187

Provider Details

NPI 1265796585
Specialty Ophthalmology Physician
Credentials MD, PHD
Gender Female
NPI Issued 07/02/2012

CMS Quality Score (MIPS)

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

94.1036
Final Score
Avg: 83.1
82.5938
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where MICHELLE KRON-GRAY, MD, PHD 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.

WHEATON EYE CLINIC LTD
WHEATON, 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 MICHELLE KRON-GRAY, MD, PHD. Source: openpaymentsdata.cms.gov.

Total received

$139

Largest payer

Oyster Point Pharma, 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.

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 MICHELLE KRON-GRAY, MD, PHD. To verify MICHELLE KRON-GRAY, MD, PHD'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

MICHELLE KRON-GRAY, MD, PHD — brand share 50.0%
Specialty average (est.)

50% brand-name claims vs 50% generic, on 921 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.

921
Total Claims
$104K
Total Drug Cost
314
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,194
Total Day Supply
28,558
Brand vs Generic
50% brand / 50% generic
Brand Drug Cost
$89K
Generic Drug Cost
$15K

Patient Demographics

Average Patient Age
75.9 years
Avg HCC Risk Score
1.01
Gender Split
67% female / 33% male

Top Prescribed Drugs (Medicare Part D)

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

What MICHELLE KRON-GRAY, MD, PHD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisolone Acetate
298
Moxifloxacin
Moxifloxacin Hcl
260
Latanoprost
100
Restasis
Cyclosporine
53
Timolol Maleate
37
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
29
Erythromycin
Erythromycin Base
25
Cyclosporine
12
Ketorolac Tromethamine
12
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
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 MICHELLE KRON-GRAY, MD, PHD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

MICHELLE KRON-GRAY, MD, PHD's 921 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Illinois

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

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHELLE KRON-GRAY, MD, PHD's specialty?
MICHELLE KRON-GRAY, MD, PHD specializes in Ophthalmology Physician and practices in WHEATON, Illinois. Credentials: MD, PHD.
How much does MICHELLE KRON-GRAY, MD, PHD prescribe under Medicare Part D?
In 2023, MICHELLE KRON-GRAY, MD, PHD wrote 921 Medicare Part D claims totaling $104K in drug costs for 314 beneficiaries.
What is MICHELLE KRON-GRAY, MD, PHD's Medicare quality score?
MICHELLE KRON-GRAY, MD, PHD has a CMS MIPS Final Score of 94.1036/100 (Quality: 82.5938). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MICHELLE KRON-GRAY, MD, PHD located?
MICHELLE KRON-GRAY, MD, PHD is located at 2015 N MAIN ST, WHEATON, IL, 60187. Phone: (630) 668-8250.
What is MICHELLE KRON-GRAY, MD, PHD's NPI number?
MICHELLE KRON-GRAY, MD, PHD's National Provider Identifier (NPI) is 1265796585, issued on 07/02/2012.
Does MICHELLE KRON-GRAY, MD, PHD prescribe more brand-name or generic drugs?
MICHELLE KRON-GRAY, MD, PHD's prescribing is 50% brand-name and 50% generic drugs by claim count, with $89K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 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 MICHELLE KRON-GRAY, MD, PHD prescribe most often?
Based on 2023 Medicare Part D data, MICHELLE KRON-GRAY, MD, PHD's most frequently prescribed drugs include Prednisolone Acetate, Moxifloxacin, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHELLE KRON-GRAY, MD, PHD accept Medicare?
MICHELLE KRON-GRAY, MD, PHD appears in CMS Medicare data with 921 Part D claims and 314 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHELLE KRON-GRAY, MD, PHD's credentials?
MICHELLE KRON-GRAY, MD, PHD's NPI is 1265796585 with credentials MD, PHD. 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