THERESA KEEGAN CRNA
NPI 1619797537
Nurse Anesthetist, Certified Registered in Chicago, IL

Active since October 15, 2024Accepts Medicare Assignment
836 W WELLINGTON AVE, CHICAGO, IL 60657(773) 296-0595(773) 296-0548 Get Directions Write a Review

NPPES record last updated: June 26, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Theresa Keegan Crna NPPES

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

THERESA KEEGAN CRNA (NPI 1619797537) is an individual nurse anesthetist, certified registered in Chicago, Illinois, licensed in Illinois (209030629) and active in the NPI registry since October 2024. She is affiliated with Advocate Illinois Masonic Medical Center, maintains a secondary practice location in Tavares, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1619797537
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameTHERESA KEEGANCredential: CRNA
Location Address836 W WELLINGTON AVEChicago, IL 60657-5147
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Fax(773) 296-0548
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateOctober 15, 2024
Last NPPES UpdateJune 26, 2025
NPPES CertifiedJune 26, 2025
NPI 1619797537 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License Licensed in IL · 209030629
Definition

(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.

836 W WELLINGTON AVE, Chicago, IL 60657

Secondary Practice Location 1

Location 11878 Mayo DrTavares, FL 32778-4320 · Phone (352) 508-5401

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

Theresa Keegan Crna 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 ID7618405960
PECOS Enrollment IDI20250114002216

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60657 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

Internal Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Obstetrics & Gynecology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Pharmacist
836 W WELLINGTON AVE
CHICAGO, IL 60657
Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Pediatrics (Neonatal-Perinatal Medicine)
836 W WELLINGTON AVE, ROOM 3614
CHICAGO, IL 60657
Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Emergency Medicine
836 W WELLINGTON AVE, EMERGENCY DEPARTMENT
CHICAGO, IL 60657
Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619797537, enumerated as an "individual" on October 15, 2024.

The provider is located at 836 W WELLINGTON AVE CHICAGO, IL 60657 and the phone number is (773) 296-0595.

Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Theresa Keegan is affiliated with: ADVOCATE ILLINOIS MASONIC MEDICAL CENTER.