Individual Healthcare Provider
Michael W Ritter, MD
Provider's NPPES record last updated: April 3, 2024
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1003885351
- Primary Specialty
- Pediatrics — Pediatric Allergy/Immunology
- Practice Location
- Madison, Wisconsin
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 17, 2026, 11:50 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Pediatrics
Pediatric Allergy/Immunology
Allopathic & Osteopathic Physicians
A pediatrician who specializes in the diagnosis and treatment of allergies, allergic reactions, and immunologic diseases in children.
Taxonomy code 2080P0201X Internal Medicine
Allergy & Immunology
Allopathic & Osteopathic Physicians
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
Taxonomy code 207RA0201X
Provider-Reported License Information
- Pediatrics (Wisconsin)
- 28907
- Internal Medicine (Wisconsin)
- 28907
Practice Locations
Practice Location
7610 Sawmill Rd
Madison, Wisconsin 53717-2207
Phone: (608) 831-1528
Record Information
- Enumeration Date
- March 17, 2006
- Provider's NPPES Record Last Updated
- April 3, 2024
- Certification Date
- April 3, 2024
- NPISignal NPPES Dataset
- August 2026
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