Claudia L. Altmann, MD
Infectious Disease Physician · Grafton, WI
Claudia L. Altmann, MD is an infectious disease physician with a practice address in Grafton, Wisconsin, and NPI 1386691756, issued on May 30, 2006. Check the license (Wisconsin 27135-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Claudia L. Altmann
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 27135-020 WI
036159003 IL
Self-reported in NPPES; status is on the state search - Practice location
- 975 Port Washington RD, Grafton, WI 53024
- Phone
- (262) 329-1000
- Enumerated
- May 30, 2006
- Record last updated
- Sep 27, 2023
- Medicaid ID
- 31483000 WI
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 171 in Wisconsin → Look up another NPI →
Also registered at 975 Port Washington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Patrick AndrewsPhysical Therapist1689481962
- Avigdor Asner, DOHospitalist Physician1962061242
Verify Claudia L. Altmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 27135-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average infectious disease physician in 2024
12 Medicare Part D claims, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
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.
Claudia L. Altmann among 171 infectious disease physician records in Wisconsin
Claudia L. Altmann, MD is one of 171 infectious disease 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Wisconsin
There are 171 infectious disease physician records in Wisconsin.
All 171 in Wisconsin → Every provider in Grafton → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Sonia Dhingra, M.D.Grafton, WI 530241164641478
- Paula Jones, MDGrafton, WI 530241649210287
- Jennifer Hong, DOBrookfield, WI 530051033658232
- David Letzer, MDBrookfield, WI 530051255382529
- Thomas Taft, MDBrookfield, WI 530051851341994
- William Timm, MDBrookfield, WI 530051902856016
- Krishna Bobbili, MDSheboygan, WI 530811851364699
- Nisha Sheth, M.D.Elkhorn, WI 531211992949895
Common questions
What is Claudia L. Altmann, MD's NPI number?
Claudia L. Altmann, MD's National Provider Identifier (NPI) is 1386691756, issued on May 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Claudia L. Altmann, MD located?
The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-1000. Providers update this record themselves, so call before visiting.
How can I verify Claudia L. Altmann, MD's license?
NPPES lists Wisconsin license number 27135-020, 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 Claudia L. Altmann, MD prescribe under Medicare Part D?
In 2024, Claudia L. Altmann, MD had 12 Medicare Part D claims; the average among infectious disease physician prescribers was 689. 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.