NPPES file of Aug 9, 2026

Vannhu Nguyen, M.D.

Urology Physician · Green Bay, WI

Vannhu Nguyen, M.D. is a urology physician with a practice address in Green Bay, Wisconsin, and NPI 1235399536, issued on Jun 11, 2008. Check the license (Wisconsin 57464, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235399536
Name
Vannhu Nguyen
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
57464 WI
Self-reported in NPPES; status is on the state search
Practice location
2845 Greenbrier RD, Green Bay, WI 54311
Phone
(920) 288-8280
Enumerated
Jun 11, 2008
Record last updated
Sep 1, 2022
Fax
(920) 288-8285
Medicaid ID
100024381 WI
Medicare enrollment
Enrolled (PECOS I20120807000196); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2845 Greenbrier RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jade Abts, NPNurse Practitioner1992293708
  2. Ian AdamsonCertified Registered Nurse Anesthetist1184981532
  3. Kerry Ahrens, M.D.Emergency Medicine Physician1639497621
  4. Andrea Akpoguma, M.D.Hospitalist Physician1508091117
  5. Kirsten Akpoguma, CRNACertified Registered Nurse Anesthetist1417601725
  6. Valerie Albers, A.P.N.P.Nurse Practitioner1396015830

Verify Vannhu Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 57464
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% more Medicare Part D claims than the average urology physician in 2024

1,719 Medicare Part D claims for 418 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 46 claims were for opioids.

  1. Vannhu Nguyen1,719
  2. Specialty average1,340

Most prescribed

  1. Finasteride362 claims
  2. Tamsulosin Hcl320 claims
  3. Oxybutynin Chloride Er179 claims
  4. Myrbetriq170 claims
  5. Methenamine Hippurate103 claims
  6. Potassium Citrate Er86 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Baycare Aurora LLCGreen Bay, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Vannhu Nguyen among 259 urology physician records in Wisconsin

Vannhu Nguyen, M.D. is one of 259 urology physician records with a practice address in Wisconsin. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.

  • NPI issued2008 · 64% of these records are older, 33% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2007 · median 2002 among the 166 with a school on file
  • Record last updated2022 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in Wisconsin

There are 259 urology physician records in Wisconsin.

The 8 urology physician records with the nearest ZIP codes

  1. William Dougherty, MDGreen Bay, WI 543111548298789
  2. Timothy Kennedy, MDGreen Bay, WI 543111417985631
  3. Kaylee Luck, MDGreen Bay, WI 543111871120063
  4. Myron Marlett, MDGreen Bay, WI 543111740226265
  5. Bruce Neal, MDGreen Bay, WI 543111154359388
  6. Joshua Piotrowski, M.D. PH.D.Green Bay, WI 543111871988634
  7. Arthur Sonneland, MDGreen Bay, WI 543111639196413
  8. Heather Stefaniak, MDGreen Bay, WI 543111013139641

Common questions

What is Vannhu Nguyen, M.D.'s NPI number?

Vannhu Nguyen, M.D.'s National Provider Identifier (NPI) is 1235399536, issued on Jun 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Vannhu Nguyen, M.D. located?

The NPPES record lists a practice address at 2845 Greenbrier RD, Green Bay, WI, 54311. Phone: (920) 288-8280. Providers update this record themselves, so call before visiting.

How can I verify Vannhu Nguyen, M.D.'s license?

NPPES lists Wisconsin license number 57464, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Vannhu Nguyen, M.D. prescribe under Medicare Part D?

In 2024, Vannhu Nguyen, M.D. had 1,719 Medicare Part D claims for 418 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.