Dana I. Vasquez, MD
Internal Medicine Physician · Fond Du Lac, WI
Dana I. Vasquez, MD is an internal medicine physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1093798290, issued on Nov 22, 2005. Check the license (Wisconsin 37135, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Dana I. Vasquez
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 37135 WI
60822 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 420 E Division St, Fond Du Lac, WI 54935
- Phone
- (920) 926-8420
- Enumerated
- Nov 22, 2005
- Record last updated
- Jan 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 32339500 WI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 420 E Division St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Melissa Berggren, PA-CPhysician Assistant1639377617
- Louann Biddick, NPNurse Practitioner1770566721
- Jennifer Bissell, MDFamily Medicine Physician1316146962
- Tiffany Boelk, APNPNurse Practitioner1700459690
- David Bowman, M.D.Cardiovascular Disease Physician1962492397
Verify Dana I. Vasquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 37135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
24 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Donepezil Hcl12 claims
- Lisinopril12 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.
Dana I. Vasquez among 2,078 internal medicine physician records in Wisconsin
Dana I. Vasquez, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 internal medicine physician records list a practice address in Fond Du Lac
They are 19 of the 1,312 NPPES records with a practice address in Fond Du Lac, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Fond Du Lac → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- E Ayala, MDFond Du Lac, WI 549351821089541
- Oliver Clements, MDFond Du Lac, WI 549351184615429
- Robert Grass, MDFond Du Lac, WI 549351689665093
- Punit Kumar, MDFond Du Lac, WI 549351144271990
- Madhulika Lall, MDFond Du Lac, WI 549351821009838
- Gabriel Litman, MDFond Du Lac, WI 549351184731630
- Joseph Marik, MDFond Du Lac, WI 549351710969860
- Jay Muller, MDFond Du Lac, WI 549351053305961
Common questions
What is Dana I. Vasquez, MD's NPI number?
Dana I. Vasquez, MD's National Provider Identifier (NPI) is 1093798290, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Dana I. Vasquez, MD located?
The NPPES record lists a practice address at 420 E Division St, Fond Du Lac, WI, 54935. Phone: (920) 926-8420. Providers update this record themselves, so call before visiting.
How can I verify Dana I. Vasquez, MD's license?
NPPES lists Wisconsin license number 37135, 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 Dana I. Vasquez, MD prescribe under Medicare Part D?
In 2024, Dana I. Vasquez, MD had 24 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.