Geoffrey Khang Dang-Vu, M.D.
Gastroenterology Physician · Madison, WI
Geoffrey Khang Dang-Vu, M.D. is a gastroenterology physician with a practice address in Madison, Wisconsin, and NPI 1548648280, issued on May 14, 2015. Check the license (Wisconsin 67415, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Geoffrey Khang Dang-Vu
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 67415 WI
Self-reported in NPPES; status is on the state search - Practice location
- 700 S Park St Ste A, Madison, WI 53715
- Phone
- (608) 260-2900
- Enumerated
- May 14, 2015
- Record last updated
- Jul 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (608) 260-2977
- Medicaid ID
- 1548648280 WI
- Medicare enrollment
- Enrolled (PECOS I20210728002285); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 340 in Wisconsin → Look up another NPI →
Also registered at 700 S Park St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kwadwo Achampong, M.D.Pain Medicine Physician1255699450
- Alexei Agapitov, M.D.Cardiovascular Disease Physician1841201514
- James Ballard, M.D.Interventional Cardiology Physician1508209354
- Franklin Bendewald, M.D.Surgery Physician1275505646
- Jaclyn Boardman, RDRegistered Dietitian1053760553
- Vanesa Botsford, MDNeurology Physician1497288500
Verify Geoffrey Khang Dang-Vu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 67415Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average gastroenterology physician in 2024
554 Medicare Part D claims for 332 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Gavilyte-C215 claims
- Omeprazole43 claims
- Gavilyte-G41 claims
- Colestipol Hcl32 claims
- Linzess28 claims
- Pantoprazole Sodium21 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
- Dean Health Systems IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geoffrey Khang Dang-Vu among 340 gastroenterology physician records in Wisconsin
Geoffrey Khang Dang-Vu, M.D. is one of 340 gastroenterology physician records with a practice address in Wisconsin. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2015 · median 2003 among the 239 with a school on file
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Wisconsin
There are 340 gastroenterology physician records in Wisconsin.
All 340 in Wisconsin → Every provider in Madison → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Allan, MDMadison, WI 537151558300822
- Siobhan Byrne, M.D.Madison, WI 537151417915836
- Abigail Christiansen, MDMadison, WI 537151427003227
- Sigurdur Einarsson, MDMadison, WI 537151245206317
- Jason Gonzaga, M.D.Madison, WI 537151710026430
- Gary Griglione, MDMadison, WI 537151013931203
- John Hamilton, MDMadison, WI 537151659310969
- Susan Lepinski, MDMadison, WI 537151780650713
Common questions
What is Geoffrey Khang Dang-Vu, M.D.'s NPI number?
Geoffrey Khang Dang-Vu, M.D.'s National Provider Identifier (NPI) is 1548648280, issued on May 14, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey Khang Dang-Vu, M.D. located?
The NPPES record lists a practice address at 700 S Park St Ste A, Madison, WI, 53715. Phone: (608) 260-2900. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey Khang Dang-Vu, M.D.'s license?
NPPES lists Wisconsin license number 67415, 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 Geoffrey Khang Dang-Vu, M.D. prescribe under Medicare Part D?
In 2024, Geoffrey Khang Dang-Vu, M.D. had 554 Medicare Part D claims for 332 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.