Mary Ann Hollenback, APN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

277-000554 Issued in IL

Practice address

2020 Ogden Ave Ste 400
Aurora, IL 60504-5898

Phone

(630) 692-5563

Fax

(630) 692-5564

NPI assigned

Feb 6, 2007

Last updated

Sep 29, 2026By 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 1

Addresses

Other identifiers 2

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

Other, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Rush-Copley Medical Group NFPGroup PAC ID 7618864877, 101 clinicians

Rush University Medical GroupGroup PAC ID 5496658874, 1,521 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Copley Memorial Hospital Hospital, Aurora, IL, CCN 140029

Merit-based Incentive Payment System (MIPS)

Final score

90.65 of 100Reported as group

Quality

87.9

Promoting interoperability

100

Improvement activities

40

Cost

73.87

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.

• Rush University Medical Group

  dba Rush University Internists

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542
  Medicare reassignment Care Compare group NPD
• Rush-Copley Medical Group, NFP

  • Family Medicine Physician
  • Aurora, IL
  • NPI 1093075848
  Medicare reassignment Care Compare group NPD
• Central Dupage Hospital Association

  dba Northwestern Medicine Central Dupage Hospital

  • General Acute Care Hospital
  • Winfield, IL
  • NPI 1003864810
  Medicare reassignment NPD
• Edward Health Ventures

  • Multi-Specialty Clinic/Center
  • Bolingbrook, IL
  • NPI 1962452912
  Medicare reassignment NPD
• Central Dupage Hospital Association

  dba Northwestern Medicine Central Dupage Hospital

  • Psychiatric Hospital Unit
  • Winfield, IL
  • NPI 1740230895
  NPD
• Edward Health Ventures

  • Nurse Practitioner
  • Naperville, IL
  • NPI 1093117350
  NPD
• Rush-Copley Medical Group NFP

  • Family Medicine Physician
  • Aurora, IL
  • NPI 1639455173
  NPD
• Dupage Health Services, Inc.

  • Clinic/Center
  • Aurora, IL
  • NPI 1356635577
  NPD (past)
• Rush Copley Medical Group

  • Family Medicine Physician
  • Aurora, IL
  • NPI 1194836247
  NPD (past)

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

• Copley Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Aurora, IL
  • NPI 1295882561
  Care Compare affiliation

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

{
    "created_epoch": "1170720000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1841339405",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2020 OGDEN AVE STE 400",
            "city": "AURORA",
            "state": "IL",
            "postal_code": "605045898",
            "telephone_number": "630-692-5563",
            "fax_number": "630-692-5564"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2020 OGDEN AVE STE 400",
            "city": "AURORA",
            "state": "IL",
            "postal_code": "605045898",
            "telephone_number": "630-692-5563",
            "fax_number": "630-692-5564"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLLENBACK",
        "first_name": "MARY ANN",
        "credential": "APN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-06",
        "last_updated": "2026-09-29",
        "certification_date": "2024-02-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "277-000554",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN (GROUP)",
            "identifier": "IL5966",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN (INDIVIDUAL)",
            "identifier": "IL5966004",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kelly Lynn Holben, FNP-BC,APN,CNP,PMHNP
• Kennetta Holden
• Holistic Health and Behavioral Services Inc
• Jim Holland
• Sarah Holland, BA
• Christian Lee Hollis, DPT
• Ellen Sue Hollon, P.T.
• Christopher Holmes
• Diane Homan, M.D.
• Home Care Travel Docs Inc

• Family Nurse Practitioner in Aurora, IL
• Providers in Aurora, IL by specialty
• Family Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 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.