2026 NPPES data Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician NPI 1346772225 M.D.
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VI DUONG, M.D.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in LAKE FOREST, 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
225
Medicare Part D claims · 115 beneficiaries · Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician avg: 611
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.4K
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

VI DUONG, M.D. filed 225 Medicare Part D claims in 2023 as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician in LAKE FOREST, Illinois, prescribing 63% generic.

225
Part D claims, 2023
63%
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.

VI DUONG, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

225 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

VI DUONG, M.D. 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).

What does the federal data show about VI DUONG, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/30/2017

NPI 1346772225

Primary specialty

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician

Niche

568 US NPIs in this specialty

Medicare Part D claims

225 63% vs specialty avg

2023 prescription claims

Specialty avg: 611

Specialty distribution in Illinois

How Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician compares to other specialties among Illinois providers

Illinois providers

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within Illinois

1. Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician ABMS/AOA estimate

Est. board-certified rate (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) 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).

VI DUONG, M.D. appears in the CMS NPPES registry as a Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider holding M.D. credentials at 1000 N WESTMORELAND RD, LAKE FOREST, IL, 60045, with a listed phone of (312) 694-7337. NPI 1346772225 was issued on 03/30/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUONG 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 225 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $56K in drug spend, split 37% brand-name and 63% generic by claim count, with an opioid prescribing rate of 4.9%. 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.

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician is a narrow specialty nationwide, with 568 enrolled providers across 49 states and an average of 611 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

1000 N WESTMORELAND RD
LAKE FOREST, IL 60045

Provider Details

NPI 1346772225
Specialty Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
Credentials M.D.
Gender Female
NPI Issued 03/30/2017

Hospital and facility affiliations

Facilities where VI DUONG, 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.

NORTHWESTERN MEDICAL FACULTY FOUNDATION
LAKE FOREST, 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 VI DUONG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.4K

Largest payer

Axonics, 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 VI DUONG, M.D.. To verify VI DUONG, 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 · Above average

VI DUONG, M.D. — brand share 37.0%
Specialty average (est.)

37% brand-name claims vs 63% generic, on 225 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.

225
Total Claims
$56K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
377
Total Day Supply
9,819
Brand vs Generic
37% brand / 63% generic
Brand Drug Cost
$45K
Generic Drug Cost
$11K
Opioid Claims
11 (4.9% rate)
Antibiotic Claims
36

Patient Demographics

Average Patient Age
74.8 years
Avg HCC Risk Score
1.22
Gender Split
100% female / 0% male
Age Distribution
<65: 13, 65-74: 37, 75-84: 51, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

What VI DUONG, M.D. 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
Myrbetriq
Mirabegron
36
Estradiol
35
Methenamine Hippurate
28
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
23
Gemtesa
Vibegron
18
Trospium Chloride Er
Trospium Chloride
17
Oxycodone Hcl
11

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

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Overview

How VI DUONG, M.D. fits within the Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician landscape nationally.

568
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in US
49
States with Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician
611
Avg Claims per Provider

VI DUONG, M.D.'s 225 claims are below the specialty average of 611.

Nearby Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Providers in Illinois

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

Compare Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is VI DUONG, M.D.'s specialty?
VI DUONG, M.D. specializes in Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician and practices in LAKE FOREST, Illinois. Credentials: M.D..
How much does VI DUONG, M.D. prescribe under Medicare Part D?
In 2023, VI DUONG, M.D. wrote 225 Medicare Part D claims totaling $56K in drug costs for 115 beneficiaries.
Where is VI DUONG, M.D. located?
VI DUONG, M.D. is located at 1000 N WESTMORELAND RD, LAKE FOREST, IL, 60045. Phone: (312) 694-7337.
What is VI DUONG, M.D.'s NPI number?
VI DUONG, M.D.'s National Provider Identifier (NPI) is 1346772225, issued on 03/30/2017.
Does VI DUONG, M.D. prescribe more brand-name or generic drugs?
VI DUONG, M.D.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $45K in brand drug costs.
Does VI DUONG, M.D. prescribe opioids?
Yes, VI DUONG, M.D. had 11 opioid claims in 2023 with an opioid prescribing rate of 4.9%.
How many Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers are there in the US?
There are 568 Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers across 49 states in the US. The average Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician provider writes 611 Medicare Part D claims per year.
What drugs does VI DUONG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, VI DUONG, M.D.'s most frequently prescribed drugs include Myrbetriq, Estradiol, Methenamine Hippurate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does VI DUONG, M.D. accept Medicare?
VI DUONG, M.D. appears in CMS Medicare data with 225 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify VI DUONG, M.D.'s credentials?
VI DUONG, M.D.'s NPI is 1346772225 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