Individual Healthcare Provider
Ryan Michael Weiss, MD
Provider's NPPES record last updated: August 4, 2025
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1295239762
- Primary Specialty
- Internal Medicine — Nephrology
- Practice Location
- La Grange Highlands, Illinois
- Sole Proprietor
- Yes
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 18, 2026, 5:17 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
Internal Medicine
Nephrology
Allopathic & Osteopathic Physicians
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Taxonomy code 207RN0300X Emergency Medicine
Allopathic & Osteopathic Physicians
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Taxonomy code 207P00000XInternal Medicine
Allopathic & Osteopathic Physicians
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy code 207R00000XStudent in an Organized Health Care Education/Training Program
Student, Health Care
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Taxonomy code 390200000X
Provider-Reported License Information
- Internal Medicine (Illinois)
- 036.155384
- Emergency Medicine (Kentucky)
- 54096
- Internal Medicine (Illinois)
- 036.155384
- Internal Medicine (Kentucky)
- 54096
- Student in an Organized Health Care Education/Training Program (Illinois)
- 036.155384
Practice Locations
Practice Location
5201 Willow Springs Rd Ste 260
La Grange Highlands, Illinois 60525-6537
Phone: (708) 354-1306
Additional Practice Location
5841 S Maryland Ave
Chicago, Illinois 60637-1443
Phone: (773) 702-1150
Additional Practice Location
2055 W Army Trail Rd Ste 110e
Addison, Illinois 60101-1478
Phone: (708) 354-1306
Fax: (708) 354-1538
Record Information
- Enumeration Date
- March 20, 2018
- Provider's NPPES Record Last Updated
- August 4, 2025
- Certification Date
- August 4, 2025
- NPISignal NPPES Dataset
- August 2026
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