Daniel Attanasio, D.O.
Internal Medicine Physician · Grafton, WI
Daniel Attanasio, D.O. is an internal medicine physician with a practice address in Grafton, Wisconsin, and NPI 1609801380, issued on Jul 11, 2006. Check the license (Wisconsin 49349, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Daniel Attanasio
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 49349 WI
Self-reported in NPPES; status is on the state search - Practice location
- 215 Washington St, Grafton, WI 53024
- Phone
- (262) 375-3700
- Enumerated
- Jul 11, 2006
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (262) 376-6020
- Medicaid ID
- 43532400 WI
- Medicare enrollment
- Enrolled (PECOS I20060825000070); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 215 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Daniel Attanasio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 49349Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average internal medicine physician in 2024
10,756 Medicare Part D claims for 613 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 577 claims were for opioids.
Most prescribed
- Atorvastatin Calcium615 claims
- Amlodipine Besylate451 claims
- Lisinopril403 claims
- Pantoprazole Sodium363 claims
- Losartan Potassium357 claims
- Rosuvastatin Calcium306 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
- Aurora Advanced Healthcare, Inc.Mequon, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Attanasio among 2,078 internal medicine physician records in Wisconsin
Daniel Attanasio, D.O. 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2003 · median 2002 among the 1,098 with a school on file
- 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 Grafton
They are 19 of the 459 NPPES records with a practice address in Grafton, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Grafton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammed Al-Fawakhiri, MDGrafton, WI 530241942276613
- Melinda Bonilla-Puetz, MDGrafton, WI 530241942233101
- Richard Bunting, MDGrafton, WI 530241730111964
- Katherine Burrows, DOGrafton, WI 530241942323878
- William Ebinger, MDGrafton, WI 530241700818952
- John Feilbach, M.D.Grafton, WI 530241538191168
- Ashwini Gundelly, M.D.Grafton, WI 530241750310801
- Domingo Hong, MDGrafton, WI 530241811915358
Common questions
What is Daniel Attanasio, D.O.'s NPI number?
Daniel Attanasio, D.O.'s National Provider Identifier (NPI) is 1609801380, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Attanasio, D.O. located?
The NPPES record lists a practice address at 215 Washington St, Grafton, WI, 53024. Phone: (262) 375-3700. Providers update this record themselves, so call before visiting.
How can I verify Daniel Attanasio, D.O.'s license?
NPPES lists Wisconsin license number 49349, 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 Daniel Attanasio, D.O. prescribe under Medicare Part D?
In 2024, Daniel Attanasio, D.O. had 10,756 Medicare Part D claims for 613 beneficiaries; 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.