Maria E Onak, APN-CNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

209006771 Issued in IL

Practice address

2100 Pfingsten Rd
Glenview, IL 60026-1301

Phone

(847) 503-4222

Fax

(847) 503-5110

NPI assigned

Oct 3, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

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 1

Specialty

Nurse Practitioner

Education

Rush Medical College of Rush University, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Endeavor Health Medical GroupGroup PAC ID 2163334699, 3,330 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwest Community Hospital 1 Hospital, Arlington Heights, IL, CCN 140252

Merit-based Incentive Payment System (MIPS)

Final score

84.9 of 100Reported as group

Quality

75.91

Promoting interoperability

99

Improvement activities

40

Cost

74.6

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 and National Provider Directory roles.

• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882
  Medicare reassignment Care Compare group NPD
• Moments Palliative Care LLC

  • Hospice and Palliative Medicine (Internal Medicine) Physician
  • Des Plaines, IL
  • NPI 1972290724
  Medicare reassignment NPD
• Vitae Health Medical Illinois, PLLC

  • Internal Medicine Physician
  • Skokie, IL
  • NPI 1174013452
  Medicare reassignment NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Moments Palliative Care LLC

  • Hospice and Palliative Medicine (Internal Medicine) Physician
  • Miami Lakes, FL
  • NPI 1578253894
  NPD
• Midwest Palliative & Hospice Carecenter

  • Home Health Agency
  • Glenview, IL
  • NPI 1811011919
  NPD (past)

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

• Northwest Community Hospital

  • General Acute Care Hospital
  • Arlington Heights, IL
  • NPI 1578932869
  Care Compare affiliation
• Northwest Community Hospital

  • General Acute Care Hospital
  • Arlington Heights, IL
  • NPI 1770531600
  Care Compare affiliation

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

{
    "created_epoch": "1191369600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1700074754",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 PFINGSTEN RD",
            "city": "GLENVIEW",
            "state": "IL",
            "postal_code": "600261301",
            "telephone_number": "847-503-4222",
            "fax_number": "847-503-5110"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2100 PFINGSTEN RD",
            "city": "GLENVIEW",
            "state": "IL",
            "postal_code": "600261301",
            "telephone_number": "847-503-4222",
            "fax_number": "847-503-5110"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ONAK",
        "first_name": "MARIA",
        "middle_name": "E",
        "name_prefix": "Ms.",
        "credential": "APN-CNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-10-03",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "IL",
            "license": "209006771",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "209006771",
            "primary": true
        },
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "IL",
            "license": "209006771",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gretchen Marie Olson
• Madison Olszewski
• Adelisa Omerovic, PA-C
• Omnis Chiropractic Associates
• On the Spot Dermatology PLLC
• Op Pharmacy LLC
• Op Pharmacy LLC
• Atur Oraha, MS
• Roxanne Orande
• Nayantara S. Orekondy, MD

• Nurse Practitioner in Glenview, IL
• Providers in Glenview, IL by specialty
• Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 2026; 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.