2026 NPPES data Orthopaedic Foot and Ankle Surgery Physician NPI 1659362432 MD
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GREGORY CARONIS, MD

Orthopaedic Foot and Ankle Surgery Physician in LINCOLNSHIRE, 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
126
Medicare Part D claims · 84 beneficiaries · Orthopaedic Foot and Ankle Surgery Physician avg: 218
Industry payments
$456.78
15 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GREGORY CARONIS, MD is a Orthopaedic Foot and Ankle Surgery Physician ([object Object]) practicing in LINCOLNSHIRE, Illinois with a Medicare Part D prescribing footprint of 126 claims across 84 beneficiaries . Industry payments of $456.78 across 15 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GREGORY CARONIS, MD filed 126 Medicare Part D claims in 2023 across LINCOLNSHIRE, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

GREGORY CARONIS, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/02/2005

NPI 1659362432

Primary specialty

Orthopaedic Foot and Ankle Surgery Physician

Niche

678 US NPIs in this specialty

Medicare Part D claims

126 42% vs specialty avg

2023 prescription claims

Specialty avg: 218

Specialty distribution in Illinois

How Orthopaedic Foot and Ankle Surgery Physician compares to other specialties among Illinois providers

Illinois providers

Orthopaedic Foot and Ankle Surgery Physician share within Illinois

1. Orthopaedic Foot and Ankle Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Foot and Ankle Surgery Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Orthopaedic Foot and Ankle Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Orthopaedic Foot and Ankle Surgery Physician ABMS/AOA estimate

Est. board-certified rate (Orthopaedic Foot and Ankle Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Orthopaedic Foot and Ankle Surgery Physician) — ABMS / AOA estimate

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).

GREGORY CARONIS, MD is a Orthopaedic Foot and Ankle Surgery Physician provider practicing in LINCOLNSHIRE, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1659362432. 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.

GREGORY CARONIS, MD appears in the CMS NPPES registry as a Orthopaedic Foot and Ankle Surgery Physician provider holding MD credentials at 100 VILLAGE GRN STE 120, LINCOLNSHIRE, IL, 60069, with a listed phone of (847) 634-1766. NPI 1659362432 was issued on 11/02/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARONIS 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 126 prescription claims written by this provider, covering 84 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 26.2%. 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.

Orthopaedic Foot and Ankle Surgery Physician is a narrow specialty nationwide, with 678 enrolled providers across 51 states and an average of 218 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

100 VILLAGE GRN STE 120
LINCOLNSHIRE, IL 60069

Provider Details

NPI 1659362432
Specialty Orthopaedic Foot and Ankle Surgery Physician
Credentials MD
Gender Male
NPI Issued 11/02/2005

Hospital and facility affiliations

Facilities where GREGORY CARONIS, 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.

ADVOCATE HEALTH AND HOSPITALS CORPORATION
LINCOLNSHIRE, 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 GREGORY CARONIS, MD. Source: openpaymentsdata.cms.gov.

Total received

$457

Largest payer

Stryker 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 GREGORY CARONIS, MD. To verify GREGORY CARONIS, MD'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

126
Total Claims
$1K
Total Drug Cost
84
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
134
Total Day Supply
2,261
Generic Drug Cost
$1K
Opioid Claims
33 (26.2% rate)

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
0.96
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Meloxicam
28
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
24
Methylprednisolone
20
Celecoxib
16
Ibuprofen
15

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

Orthopaedic Foot and Ankle Surgery Physician Overview

How GREGORY CARONIS, MD fits within the Orthopaedic Foot and Ankle Surgery Physician landscape nationally.

678
Orthopaedic Foot and Ankle Surgery Physician Providers in US
51
States with Orthopaedic Foot and Ankle Surgery Physician
218
Avg Claims per Provider

GREGORY CARONIS, MD's 126 claims are below the specialty average of 218.

Nearby Orthopaedic Foot and Ankle Surgery Physician Providers in Illinois

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

Compare Orthopaedic Foot and Ankle Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GREGORY CARONIS, MD's specialty?
GREGORY CARONIS, MD specializes in Orthopaedic Foot and Ankle Surgery Physician and practices in LINCOLNSHIRE, Illinois. Credentials: MD.
How much does GREGORY CARONIS, MD prescribe under Medicare Part D?
In 2023, GREGORY CARONIS, MD wrote 126 Medicare Part D claims totaling $1K in drug costs for 84 beneficiaries.
Where is GREGORY CARONIS, MD located?
GREGORY CARONIS, MD is located at 100 VILLAGE GRN STE 120, LINCOLNSHIRE, IL, 60069. Phone: (847) 634-1766.
What is GREGORY CARONIS, MD's NPI number?
GREGORY CARONIS, MD's National Provider Identifier (NPI) is 1659362432, issued on 11/02/2005.
Does GREGORY CARONIS, MD prescribe opioids?
Yes, GREGORY CARONIS, MD had 33 opioid claims in 2023 with an opioid prescribing rate of 26.2%.
How many Orthopaedic Foot and Ankle Surgery Physician providers are there in the US?
There are 678 Orthopaedic Foot and Ankle Surgery Physician providers across 51 states in the US. The average Orthopaedic Foot and Ankle Surgery Physician provider writes 218 Medicare Part D claims per year.
What drugs does GREGORY CARONIS, MD prescribe most often?
Based on 2023 Medicare Part D data, GREGORY CARONIS, MD's most frequently prescribed drugs include Meloxicam, Hydrocodone-Acetaminophen, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGORY CARONIS, MD accept Medicare?
GREGORY CARONIS, MD appears in CMS Medicare data with 126 Part D claims and 84 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGORY CARONIS, MD's credentials?
GREGORY CARONIS, MD's NPI is 1659362432 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.
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