Individual provider Active NPI

Alyssa Christine Bujnak, MD

  • Gynecologic Oncology Physician
  • Arlington Heights, IL
National Provider Identifier
1265921688
Registry record updated Dec 8, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gynecologic Oncology PhysicianTaxonomy code 207VX0201X
License
036177190 Issued in IL
Practice address
800 W Central Rd
Arlington Heights, IL 60005-2349
Phone
(847) 618-3800
NPI assigned
May 2, 2018
Last updated
Dec 8, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 8, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Gynecologic Oncology Physician 207VX0201X 01097699A IN
Gynecologic Oncology Physician 207VX0201X 036177190 IL Primary

Addresses

Primary practice location

800 W Central Rd
Arlington Heights, IL 60005-2349

Mailing address

2650 Ridge Ave
Evanston, IL 60201-1700

Other practice location 1

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone (888) 824-0200

Other practice location 2

10855 Virginia St
Crown Point, IN 46307-0210
Phone (888) 824-0200

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN, IL2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20251119004961 IN Practitioner - Obstetrics/GynecologyPractitioner - Gynecological Oncology 5294156519 Reassigns benefits to 1 organization
I20251125002841 IL Practitioner - Obstetrics/GynecologyPractitioner - Gynecological Oncology 5294156519 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/GynecologyAlso: Gynecological Oncology
Education
University of Missouri, Columbia School of Medicine, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of ChicagoGroup PAC ID 7719899426, 1,674 clinicians

Practice addresses (Care Compare)

10855 Virginia St
Suite 1700
Crown Point, IN 46307-0210
Phone (888) 824-0200

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone (773) 702-1000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as apm
Quality
83.7
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of the uterus1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036177190ILMDGynecologic Oncology Physician
01097699AINMDGynecologic Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The University of Chicago Medical Center CurrentSince Nov 1, 2025 Accepting new patients
The University of Chicago Medical Center CurrentSince Nov 1, 2025 Accepting new patients
Endeavor Health Medical Group CurrentSince Dec 23, 2025 Accepting new patients
Regents of the University of California Gynecologic Oncology CurrentSince Aug 1, 2022 Accepting new patients
University of California Irvine Current Accepting new patients
University of California Irvine CurrentSince Aug 1, 2022 Accepting new patients
University of Chicago CurrentSince Nov 1, 2025 Accepting new patients
University of California Irvine CurrentSince Aug 1, 2022 Accepting new patients
Endeavor Health Medical Group Past Accepting new patients
University of California Irvine Past Accepting new patients

Locations

101 The City Dr S
Orange, CA 92868
Phone (714) 456-6054

200 S Manchester Ave
Ste 300
Orange, CA 92868
Phone (714) 424-9001

800 N Main St
Santa Ana, CA 92701
Phone (714) 456-6324

880 W Central Rd
Ste 5000
Arlington Heights, IL 60005
Phone (847) 618-3800

800 W Central Rd
Arlington Hts, IL 60005
Phone (847) 618-6150

150 Harvester Dr
Ste 300
Burr Ridge, IL 60527
Phone (773) 702-1061

9532 Eagle Way
Chicago, IL 60678

2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206

2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222

350 N Wall St
Kankakee, IL 60901
Phone (815) 935-7500

120 N Oak St
Oak Brook Mall, IL 60521
Phone (630) 856-6700

10855 Virginia St
Ste 1100
Crown Point, IN 46307
Phone (219) 407-5540

10855 Virginia St
Ste 1200
Crown Point, IN 46307
Phone (219) 407-5500

10855 Virginia St
Ste 1600
Crown Point, IN 46307

10855 Virginia St
Ste 1700
Crown Point, IN 46307

10855 Virginia St
Ste 2100
Crown Point, IN 46307
Phone (219) 407-5540

10855 Virginia St
Ste 2200
Crown Point, IN 46307
Phone (219) 407-5540

10855 Virginia St
Ste 2400
Crown Point, IN 46307

10855 Virginia St
Ste 2700
Crown Point, IN 46307

10855 Virginia St
Ste 2800
Crown Point, IN 46307

1500 S Lake Park Ave
Ste 109
Hobart, IN 46342
Phone (219) 942-0551

Interoperability endpoints

  • Direct secure messaging: abujnak353807@uchospital.direct-ci.com
  • Direct secure messaging: abujnak531101@direct.memorialcare.org

Organizations & group practices 10

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.

Hospital & facility affiliations 3

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

NPI Registry JSON

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

{
    "created_epoch": "1525219200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765152000000",
    "number": "1265921688",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2650 RIDGE AVE",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602011700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 W CENTRAL RD",
            "city": "ARLINGTON HEIGHTS",
            "state": "IL",
            "postal_code": "600052349",
            "telephone_number": "847-618-3800"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5841 S MARYLAND AVE",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606371443",
            "country_code": "US",
            "telephone_number": "888-824-0200",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10855 Virginia St",
            "address_purpose": "LOCATION",
            "city": "Crown Point",
            "state": "IN",
            "postal_code": "463070210",
            "country_code": "US",
            "telephone_number": "888-824-0200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BUJNAK",
        "first_name": "ALYSSA",
        "middle_name": "CHRISTINE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-05-02",
        "last_updated": "2025-12-08",
        "certification_date": "2025-12-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VX0201X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecologic Oncology",
            "state": "IN",
            "license": "01097699A",
            "primary": false
        },
        {
            "code": "207VX0201X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecologic Oncology",
            "state": "IL",
            "license": "036177190",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Arlington Heights, IL

Sources for this page

Verify at the official NPI Registry.