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JOHANNA CHOOKASZIAN MD
NPI 1366455818
Anesthesiology in Chicago, IL

Active since August 15, 2006PECOS Enrolled
93.08/100
CMS Quality Rating
5145 N CALIFORNIA AVE, CHICAGO, IL 60625(773) 878-8200(773) 293-8804 Get Directions Write a Review

NPPES record last updated: October 21, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 21, 2021, Aug 11, 2016 (2 updates tracked since 2016).

About Johanna Chookaszian Md NPPES

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

JOHANNA CHOOKASZIAN MD (NPI 1366455818) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (036057628) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366455818
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameJOHANNA CHOOKASZIANCredential: MD
Location Address5145 N CALIFORNIA AVEChicago, IL 60625-3661
Mailing Address2740 W Foster Ave, Ste 310Chicago, IL 60625-3500 · (773) 878-8200 · Fax (773) 293-8804
Phone(773) 878-8200
Fax(773) 293-8804
Sole ProprietorNo
Enumeration DateAugust 15, 2006
Last NPPES UpdateOctober 21, 20212 updates tracked since enumeration
NPPES CertifiedOctober 21, 2021
✔ NPI 1366455818 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 036057628
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
5145 N CALIFORNIA AVE, Chicago, IL 60625
Open in Google Maps ↗

Other Identifiers 1

Medicaid036057628IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Johanna Chookaszian Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Johanna Chookaszian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Swedish Covenant Management Services, Inc.
Same address
Obstetrics & Gynecology
5140 N CALIFORNIA AVE
Chicago, IL 60625
  • Reassigned Medicare billing, Illinois enrollment
  • 350 clinicians in this Medicare group
NPI 1760432348 (847) 570-2040

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

93.08/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.79
Promoting Interoperability100
Improvement Activities40

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.

IVAN ZRANTCHEV MD
Emergency Medicine
5145 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
AMC ANESTHESIA LTD
Anesthesiology
5145 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
GLORIA NEZIANYA APN-CNP
Nurse Practitioner
5145 N CALIFORNIA AVE, STE M276
CHICAGO, IL 60625
Cook County (773) 878-8200
KAYLA ARLENE BALOUSEK MD
Emergency Medicine
5145 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
JULIE I FRITZ PA
Physician Assistant
5145 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 989-3800
DR. ARTEMIS KHOJASTEH M.D.
Emergency Medicine
5145 N CALIFORNIA AVE, DEPARTMENT OF EMERGENCY MEDICINE
CHICAGO, IL 60625
Cook County (773) 878-8200
WILMER FERNANDO DAVILA M.D.
Anesthesiology
5145 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 293-5486
CASEY JOHN TOOLE DO
Emergency Medicine
5145 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200

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 Johanna Chookaszian's NPI number?

The NPI number for Johanna Chookaszian is 1366455818. It was assigned to this individual provider in the NPPES registry on August 15, 2006.

Where is Johanna Chookaszian located?

Johanna Chookaszian practices at 5145 N California Ave, Chicago, IL 60625. The listed phone number is (773) 878-8200.

What is Johanna Chookaszian's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Johanna Chookaszian enrolled in Medicare?

Yes. Johanna Chookaszian is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Johanna Chookaszian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Johanna Chookaszian reassigns Medicare benefits to Swedish Covenant Management Services, Inc. (Chicago, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Johanna Chookaszian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Johanna Chookaszian was last updated on October 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.