Betty Lussi Mestousis, CRNA, APN

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

209015047 Issued in IL

Practice address

680 N Lake Shore Dr
Suite 1000
Chicago, IL 60611-4546

Phone

(312) 695-9797

NPI assigned

May 1, 2007

Last updated

Dec 18, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IL2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 2

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northwestern Medical Faculty FoundationGroup PAC ID 4587576814, 4,386 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwestern Memorial Hospital Hospital, Chicago, IL, CCN 140281

Merit-based Incentive Payment System (MIPS)

Final score

95.19 of 100Reported as apm

Quality

83.05

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Northwestern Medical Faculty Foundation

  dba Northwestern Medical Group

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment Care Compare group
• 360 Anesthesia PLLC

  • Anesthesiology Physician
  • Wilkes Barre, PA
  • NPI 1811637366

  IL, Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Central Dupage Physician Group

  dba Northwestern Medicine Regional Medical Group

  • Family Medicine Physician
  • Carol Stream, IL
  • NPI 1033149844
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Northwestern Memorial Hospital

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1497859649
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1177977600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766016000000",
    "number": "1952522815",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "680 N LAKE SHORE DR",
            "address_2": "SUITE 1000",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606114546",
            "telephone_number": "312-695-9797"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "680 N LAKE SHORE DR",
            "address_2": "SUITE 1000",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606114546",
            "telephone_number": "312-695-9797"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MESTOUSIS",
        "first_name": "BETTY",
        "middle_name": "LUSSI",
        "credential": "CRNA, APN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-05-01",
        "last_updated": "2025-12-18",
        "certification_date": "2025-12-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "IL",
            "license": "209-006214",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "IL",
            "license": "209015047",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Leonard V Messner, OD
• Stephanie S Messner, OD
• Messy Middle Therapy, PLLC
• Karen Ann Burnett Mestek, PT
• Suha Mestou
• Christopher John Mestrezat, M.D.
• Marek-Marsel Mesulam, MD
• Meta Modern Health LLC
• Meta Vie Incorporated
• Metamorph Therapy PLLC

• Certified Registered Nurse Anesthetist in Chicago, IL
• Providers in Chicago, IL by specialty
• Certified Registered Nurse Anesthetist in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.