2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1689600835 M.D.
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IRINA DUDAR, M.D.

Pain Medicine (Anesthesiology) Physician in LINCOLNWOOD, 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
1K
Medicare Part D claims · 129 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$76.86
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: IRINA DUDAR, M.D. is a Pain Medicine (Anesthesiology) Physician ([object Object]) practicing in LINCOLNWOOD, Illinois with a Medicare Part D prescribing footprint of 1K claims across 129 beneficiaries — 13% brand-name prescribing . Industry payments of $76.86 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: IRINA DUDAR, M.D. filed 1,466 Medicare Part D claims in 2023 across LINCOLNWOOD, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

IRINA DUDAR, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

IRINA DUDAR, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/22/2006

NPI 1689600835

Primary specialty

Pain Medicine (Anesthesiology) Physician

Niche

4,020 US NPIs in this specialty

Medicare Part D claims

1,466 12% vs specialty avg

2023 prescription claims

Specialty avg: 1,657

Specialty distribution in Illinois

How Pain Medicine (Anesthesiology) Physician compares to other specialties among Illinois providers

Illinois providers

Pain Medicine (Anesthesiology) Physician share within Illinois

1. Pain Medicine (Anesthesiology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pain Medicine (Anesthesiology) Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Pain Medicine (Anesthesiology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pain Medicine (Anesthesiology) Physician ABMS/AOA estimate

Est. board-certified rate (Pain Medicine (Anesthesiology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pain Medicine (Anesthesiology) 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).

IRINA DUDAR, M.D. is a Pain Medicine (Anesthesiology) Physician provider practicing in LINCOLNWOOD, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1689600835. 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.

IRINA DUDAR, M.D. appears in the CMS NPPES registry as a Pain Medicine (Anesthesiology) Physician provider holding M.D. credentials at 4656 W TOUHY AVE, LINCOLNWOOD, IL, 60712, with a listed phone of (847) 972-2202. NPI 1689600835 was issued on 06/22/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUDAR 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 1,466 prescription claims written by this provider, covering 129 Medicare beneficiaries and totaling roughly $145K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 43.3%. 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.

Pain Medicine (Anesthesiology) Physician is a narrow specialty nationwide, with 4,020 enrolled providers across 53 states and an average of 1,657 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

4656 W TOUHY AVE
LINCOLNWOOD, IL 60712

Provider Details

NPI 1689600835
Specialty Pain Medicine (Anesthesiology) Physician
Credentials M.D.
Gender Female
NPI Issued 06/22/2006

Hospital and facility affiliations

Facilities where IRINA DUDAR, M.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.

MIDWEST ANESTHESIOLOGISTS LTD
HAZEL CREST, IL
NORTH AMERICAN PARTNERS IN ANESTHESIA ILLINOIS LLC
CHICAGO, 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 IRINA DUDAR, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$77

Largest payer

Edwards Lifesciences 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 IRINA DUDAR, M.D.. To verify IRINA DUDAR, M.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 · Typical

IRINA DUDAR, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 1,466 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.

1,466
Total Claims
$145K
Total Drug Cost
129
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,519
Total Day Supply
40,493
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$113K
Generic Drug Cost
$33K
Opioid Claims
635 (43.3% rate)

Patient Demographics

Average Patient Age
75.7 years
Avg HCC Risk Score
1.55
Gender Split
71% female / 29% male
Age Distribution
<65: 17, 65-74: 38, 75-84: 48, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pregabalin
268
Tramadol Hcl
251
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
175
Diclofenac Sodium
120
Movantik
Naloxegol Oxalate
113
Gabapentin
69
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
67
Methadone Hcl
56
Celecoxib
48
Acetaminophen-Codeine
Acetaminophen With Codeine
33

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

Pain Medicine (Anesthesiology) Physician Overview

How IRINA DUDAR, M.D. fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.

4,020
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider

IRINA DUDAR, M.D.'s 1,466 claims are below the specialty average of 1,657.

Nearby Pain Medicine (Anesthesiology) Physician Providers in Illinois

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

Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is IRINA DUDAR, M.D.'s specialty?
IRINA DUDAR, M.D. specializes in Pain Medicine (Anesthesiology) Physician and practices in LINCOLNWOOD, Illinois. Credentials: M.D..
How much does IRINA DUDAR, M.D. prescribe under Medicare Part D?
In 2023, IRINA DUDAR, M.D. wrote 1,466 Medicare Part D claims totaling $145K in drug costs for 129 beneficiaries.
Where is IRINA DUDAR, M.D. located?
IRINA DUDAR, M.D. is located at 4656 W TOUHY AVE, LINCOLNWOOD, IL, 60712. Phone: (847) 972-2202.
What is IRINA DUDAR, M.D.'s NPI number?
IRINA DUDAR, M.D.'s National Provider Identifier (NPI) is 1689600835, issued on 06/22/2006.
Does IRINA DUDAR, M.D. prescribe more brand-name or generic drugs?
IRINA DUDAR, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $113K in brand drug costs.
Does IRINA DUDAR, M.D. prescribe opioids?
Yes, IRINA DUDAR, M.D. had 635 opioid claims in 2023 with an opioid prescribing rate of 43.3%.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US?
There are 4,020 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
What drugs does IRINA DUDAR, M.D. prescribe most often?
Based on 2023 Medicare Part D data, IRINA DUDAR, M.D.'s most frequently prescribed drugs include Pregabalin, Tramadol Hcl, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does IRINA DUDAR, M.D. accept Medicare?
IRINA DUDAR, M.D. appears in CMS Medicare data with 1,466 Part D claims and 129 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify IRINA DUDAR, M.D.'s credentials?
IRINA DUDAR, M.D.'s NPI is 1689600835 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

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