2026 NPPES data Endodontics NPI 1073527834 DDS
Verify on CMS →

MICHAEL GAYNOR, DDS

Endodontics in WINNETKA, 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
75
Medicare Part D claims · 51 beneficiaries · Endodontics avg: 116
What the federal data reveals: MICHAEL GAYNOR, DDS is a Endodontics ([object Object]) practicing in WINNETKA, Illinois with a Medicare Part D prescribing footprint of 75 claims across 51 beneficiaries .

What stands out: MICHAEL GAYNOR, DDS filed 75 Medicare Part D claims in 2023 across WINNETKA, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MICHAEL GAYNOR, DDS at a glance

Quality data not reported

NPI registry status

Active

Issued 07/28/2006

NPI 1073527834

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

75 35% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in Illinois

How Endodontics compares to other specialties among Illinois providers

Illinois providers

Endodontics share within Illinois

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Endodontics (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endodontics ABMS/AOA estimate

Est. board-certified rate (Endodontics) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endodontics) — 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).

MICHAEL GAYNOR, DDS is a Endodontics provider practicing in WINNETKA, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DDS. NPI: 1073527834. 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.

MICHAEL GAYNOR, DDS appears in the CMS NPPES registry as a Endodontics provider holding DDS credentials at 575 LINCOLN AVE, WINNETKA, IL, 60093, with a listed phone of (847) 446-6200. NPI 1073527834 was issued on 07/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GAYNOR 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 75 prescription claims written by this provider, covering 51 Medicare beneficiaries and totaling roughly $510 in drug spend, with an opioid prescribing rate of 14.7%. 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.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

575 LINCOLN AVE
WINNETKA, IL 60093

Provider Details

NPI 1073527834
Specialty Endodontics
Credentials DDS
Gender Male
NPI Issued 07/28/2006

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 MICHAEL GAYNOR, DDS. To verify MICHAEL GAYNOR, DDS'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.

75
Total Claims
$510
Total Drug Cost
51
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
75
Total Day Supply
474
Generic Drug Cost
$489
Opioid Claims
11 (14.7% rate)
Antibiotic Claims
62

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
0.79
Gender Split
53% female / 47% 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
Amoxicillin
39

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

Endodontics Overview

How MICHAEL GAYNOR, DDS fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

MICHAEL GAYNOR, DDS's 75 claims are below the specialty average of 116.

Nearby Endodontics Providers in Illinois

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

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

Frequently Asked Questions

What is MICHAEL GAYNOR, DDS's specialty?
MICHAEL GAYNOR, DDS specializes in Endodontics and practices in WINNETKA, Illinois. Credentials: DDS.
How much does MICHAEL GAYNOR, DDS prescribe under Medicare Part D?
In 2023, MICHAEL GAYNOR, DDS wrote 75 Medicare Part D claims totaling $510 in drug costs for 51 beneficiaries.
Where is MICHAEL GAYNOR, DDS located?
MICHAEL GAYNOR, DDS is located at 575 LINCOLN AVE, WINNETKA, IL, 60093. Phone: (847) 446-6200.
What is MICHAEL GAYNOR, DDS's NPI number?
MICHAEL GAYNOR, DDS's National Provider Identifier (NPI) is 1073527834, issued on 07/28/2006.
Does MICHAEL GAYNOR, DDS prescribe opioids?
Yes, MICHAEL GAYNOR, DDS had 11 opioid claims in 2023 with an opioid prescribing rate of 14.7%.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does MICHAEL GAYNOR, DDS prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL GAYNOR, DDS's most frequently prescribed drugs include Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL GAYNOR, DDS accept Medicare?
MICHAEL GAYNOR, DDS appears in CMS Medicare data with 75 Part D claims and 51 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL GAYNOR, DDS's credentials?
MICHAEL GAYNOR, DDS's NPI is 1073527834 with credentials DDS. 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