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IZAYADETH AGUAYO JENNINGS M.D.
NPI 1205285996
Internal Medicine - Sleep Medicine in Lisle, IL

Active since June 03, 2016PECOS EnrolledAccepts Medicare Assignment
81.49/100
CMS Quality Rating
3030 WARRENVILLE RD STE 210, LISLE, IL 60532(872) 215-0361 Get Directions Write a Review

NPPES record last updated: May 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 21, 2026, Jul 26, 2019 (2 updates tracked since 2019).

About Izayadeth Aguayo Jennings M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

IZAYADETH AGUAYO JENNINGS M.D. (NPI 1205285996) is an individual sleep medicine provider in Lisle, Illinois, licensed in Illinois (036176313) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, maintains 24 additional practice locations, and is a graduate of University Of Arizona College Of Medicine (2016).

NPPES Registry Identity

NPI1205285996
Entity TypeIndividualFemale
Primary Taxonomy207RS0012X
Provider Legal NameIZAYADETH AGUAYO JENNINGSCredential: M.D.
Location Address3030 WARRENVILLE RD STE 210Lisle, IL 60532-3646
Mailing Address1900 N Higley RdGilbert, AZ 85234-1604 · (480) 543-2034
Phone(872) 215-0361
Sole ProprietorYes
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2016
Enumeration DateJune 3, 2016
Last NPPES UpdateMay 21, 20262 updates tracked since enumeration
NPPES CertifiedMay 21, 2026
✔ NPI 1205285996 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
Licenses✔ Licensed in IL · 036176313✔ Licensed in TX · W0424✔ Licensed in OK · 46392
Definition
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 58377 (AZ)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3030 WARRENVILLE RD STE 210, Lisle, IL 60532
Open in Google Maps ↗

Secondary Practice Locations 24

Location 1202 W Medical Center BlvdWebster, TX 77598-4214 · Phone (872) 215-0361
Location 21583 E Common St Ste 205New Braunfels, TX 78130-3174 · Phone (872) 215-0361
Location 35901 Old Fredericksburg Rd Ste D102Austin, TX 78749-1210 · Phone (872) 215-0361
Location 46426 Meadowbrook DrFort Worth, TX 76112-5123 · Phone (872) 215-0361
Location 5601 Sunland Park Dr Ste 2El Paso, TX 79912-5229 · Phone (872) 215-0361
Location 64101 W State Highway 29Georgetown, TX 78628-7022 · Phone (872) 215-0361
Location 7255 E Sonterra Blvd Ste 150San Antonio, TX 78258-4081 · Phone (872) 215-0361
Location 813920 Ronald W Reagan Blvd Ste 210Cedar Park, TX 78641-1002 · Phone (872) 215-0361
Location 91111 E McDowell RdPhoenix, AZ 85006-2612 · Phone (602) 839-2000
Location 101900 N Higley RdGilbert, AZ 85234-1604 · Phone (480) 543-2034
Location 113030 Warrenville Rd Ste 210Lisle, IL 60532-3646 · Phone (872) 215-0361 ext. 50361
Location 126868 San Pedro AveSan Antonio, TX 78216-7201 · Phone (872) 215-0361 ext. 50361
Location 131400 W 47th St Ste 7LA Grange, IL 60525-6148 · Phone (872) 215-0361
Location 144200 W Memorial Rd Ste 805Oklahoma City, OK 73120-8359 · Phone (872) 215-0361 ext. 50361
Location 151225 Carlisle St Ste 1BHanover, PA 17331-1207 · Phone (872) 215-0361
Location 167100 Fort Dent Way Ste 270Tukwila, WA 98188-7501 · Phone (872) 215-0361
Location 17233 E Erie St # 460Chicago, IL 60611-2926 · Phone (872) 215-0361
Location 189535 W 144th PlOrland Park, IL 60462-9503 · Phone (872) 215-0361
Location 191960 N Lincoln Park W Ste 2Chicago, IL 60614-5456 · Phone (872) 215-0361
Location 201411 McHenry Rd Ste 127Buffalo Grove, IL 60089-1386 · Phone (872) 215-0361
Location 216305 W 95th StOak Lawn, IL 60453-2255 · Phone (872) 215-0361
Location 221000 Grand Canyon PkwyHoffman Estates, IL 60169-1705 · Phone (872) 215-0361
Location 231 Limbo LnAmherst, NH 03031-1871 · Phone (872) 215-0361
Location 247645 Gate Pkwy Ste 103Jacksonville, FL 32256-2890 · Phone (872) 215-0361

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Izayadeth Aguayo Jennings M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507196425
PECOS Enrollment IDI20190919000984
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
126 services56 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
68 services27 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
28 services27 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60532 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.49/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40
Cost38.3

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers27 claims27 services$93.41 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers15 claims15 services$34.67 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DEDICATED HEALTH ILLINOIS
Specialist
3030 WARRENVILLE RD STE 210
LISLE, IL 60532
Dupage County (872) 215-0361
DEDICATED SLEEP, LLC
Specialist
3030 WARRENVILLE RD STE 210
LISLE, IL 60532
Dupage County (872) 215-0361

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Izayadeth Jennings's NPI number?

The NPI number for Izayadeth Jennings is 1205285996. It was assigned to this individual provider in the NPPES registry on June 3, 2016.

Where is Izayadeth Jennings located?

Izayadeth Jennings practices at 3030 Warrenville Rd Ste 210, Lisle, IL 60532. The listed phone number is (872) 215-0361.

What is Izayadeth Jennings's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Izayadeth Jennings enrolled in Medicare?

Yes. Izayadeth Jennings is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Izayadeth Jennings accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Izayadeth Jennings as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Izayadeth Jennings was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.