Michelle C O'Brien, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

085005800 Issued in IL

Practice address

550 W Ogden Ave
Hinsdale, IL 60521-3186

Phone

(630) 323-6116

Fax

(630) 794-8620

NPI assigned

Aug 1, 2014

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 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in IL, ME2 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

Physician Assistant

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Eastern Maine Medical CenterGroup PAC ID 2062315161, 659 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northern Light Eastern Maine Medical Center Hospital, Bangor, ME, CCN 200033
• Northern Light Sebasticook Valley Hospital Hospital, Pittsfield, ME, CCN 201313

Merit-based Incentive Payment System (MIPS)

Final score

84.1 of 100Reported as group

Quality

64.8

Promoting interoperability

96

Improvement activities

40

Cost

68.87

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

Physician Assistant

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.

• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147
  Medicare reassignment Care Compare group
• Endeavor Health Medical Group

  dba NorthShore University HealthSystem Faculty Practice Associates

  • Allergy & Immunology Physician
  • Evanston, IL
  • NPI 1497701882
  Medicare reassignment
• Endeavor Health Medical Group

  dba NorthShore Anesthesia Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Eastern Maine Medical Center

  • Rehabilitation Hospital Unit
  • Bangor, ME
  • NPI 1780674689
  NPD

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

• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147
  Care Compare affiliation
• Sebasticook Valley Health

  • Critical Access Hospital
  • Pittsfield, ME
  • NPI 1457461477
  Care Compare affiliation

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

{
    "created_epoch": "1406851200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1245648344",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "550 W OGDEN AVE",
            "city": "HINSDALE",
            "state": "IL",
            "postal_code": "605213186",
            "telephone_number": "630-323-6116",
            "fax_number": "630-794-8620"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "550 W OGDEN AVE",
            "city": "HINSDALE",
            "state": "IL",
            "postal_code": "605213186",
            "telephone_number": "630-323-6116",
            "fax_number": "630-794-8620"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9200 W Wisconsin Avenue",
            "address_2": "Department of Neurosurgery",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532263522",
            "country_code": "US",
            "telephone_number": "414-805-5400",
            "fax_number": "414-955-0115",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1010 Executive Dr Ste 250",
            "address_purpose": "LOCATION",
            "city": "Westmont",
            "state": "IL",
            "postal_code": "605596137",
            "country_code": "US",
            "telephone_number": "630-920-2350",
            "fax_number": "630-794-8620",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "MICHELLE",
        "middle_name": "C",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-08-01",
        "last_updated": "2026-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "4010",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CT",
            "license": "23.003158",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085005800",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1245648344",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Angie Nouna
• Michael A. Novak, DDS
• Alicia Noyes, LCSW
• Nuthink Counseling
• Joan Marie O'Brien, REGISTERED NURSE
• John F. O'Connell, DDS
• Katelyn May O'Connell, PAC
• Yvonne L O'Connor, CRNA
• Madison Ann Oakes, AU.D., CCC-A
• Taylor Oakland, LCPC

• Physician Assistant in Hinsdale, IL
• Providers in Hinsdale, IL by specialty
• Physician Assistant 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.