Individual Healthcare Provider
Izayadeth Aguayo Jennings, M.D.
Provider's NPPES record last updated: May 21, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1205285996
- Primary Specialty
- Internal Medicine — Sleep Medicine
- Practice Location
- Lisle, 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 21, 2026, 3:50 AM 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
Sleep Medicine
Allopathic & Osteopathic Physicians
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Taxonomy code 207RS0012X Student 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 390200000XInternal 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 207R00000X
Provider-Reported License Information
- Internal Medicine (Illinois)
- 036176313
- Internal Medicine (Texas)
- W0424
- Internal Medicine (Oklahoma)
- 46392
- Internal Medicine (Arizona)
- 58377
Practice Locations
Practice Location
3030 Warrenville Rd Ste 210
Lisle, Illinois 60532-3646
Phone: (872) 215-0361
Additional Practice Location
202 W Medical Center Blvd
Webster, Texas 77598-4214
Phone: (872) 215-0361
Additional Practice Location
1583 E Common St Ste 205
New Braunfels, Texas 78130-3174
Phone: (872) 215-0361
Additional Practice Location
5901 Old Fredericksburg Rd Ste D102
Austin, Texas 78749-1210
Phone: (872) 215-0361
Additional Practice Location
6426 Meadowbrook Dr
Fort Worth, Texas 76112-5123
Phone: (872) 215-0361
Additional Practice Location
601 Sunland Park Dr Ste 2
El Paso, Texas 79912-5229
Phone: (872) 215-0361
Additional Practice Location
4101 W State Highway 29
Georgetown, Texas 78628-7022
Phone: (872) 215-0361
Additional Practice Location
255 E Sonterra Blvd Ste 150
San Antonio, Texas 78258-4081
Phone: (872) 215-0361
Additional Practice Location
13920 Ronald W Reagan Blvd Ste 210
Cedar Park, Texas 78641-1002
Phone: (872) 215-0361
Additional Practice Location
1111 E Mcdowell Rd
Phoenix, Arizona 85006-2612
Phone: (602) 839-2000
Additional Practice Location
1900 N Higley Rd
Gilbert, Arizona 85234-1604
Phone: (480) 543-2034
Additional Practice Location
3030 Warrenville Rd Ste 210
Lisle, Illinois 60532-3646
Phone: (872) 215-0361
Additional Practice Location
6868 San Pedro Ave
San Antonio, Texas 78216-7201
Phone: (872) 215-0361
Additional Practice Location
1400 W 47th St Ste 7
La Grange, Illinois 60525-6148
Phone: (872) 215-0361
Additional Practice Location
4200 W Memorial Rd Ste 805
Oklahoma City, Oklahoma 73120-8359
Phone: (872) 215-0361
Additional Practice Location
1225 Carlisle St Ste 1b
Hanover, Pennsylvania 17331-1207
Phone: (872) 215-0361
Additional Practice Location
7100 Fort Dent Way Ste 270
Tukwila, Washington 98188-7501
Phone: (872) 215-0361
Additional Practice Location
233 E Erie St # 460
Chicago, Illinois 60611-2926
Phone: (872) 215-0361
Additional Practice Location
9535 W 144th Pl
Orland Park, Illinois 60462-9503
Phone: (872) 215-0361
Additional Practice Location
1960 N Lincoln Park W Ste 2
Chicago, Illinois 60614-5456
Phone: (872) 215-0361
Additional Practice Location
1411 Mchenry Rd Ste 127
Buffalo Grove, Illinois 60089-1386
Phone: (872) 215-0361
Additional Practice Location
6305 W 95th St
Oak Lawn, Illinois 60453-2255
Phone: (872) 215-0361
Additional Practice Location
1000 Grand Canyon Pkwy
Hoffman Estates, Illinois 60169-1705
Phone: (872) 215-0361
Additional Practice Location
1 Limbo Ln
Amherst, New Hampshire 03031-1871
Phone: (872) 215-0361
Additional Practice Location
7645 Gate Pkwy Ste 103
Jacksonville, Florida 32256-2890
Phone: (872) 215-0361
Record Information
- Enumeration Date
- June 3, 2016
- Provider's NPPES Record Last Updated
- May 21, 2026
- Certification Date
- May 21, 2026
- NPISignal NPPES Dataset
- August 2026
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