Anna O'Brien, AGACNP-BC

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

085015-23 Issued in NH

Practice address

250 Pleasant St
Concord, NH 03301-7559

Phone

(603) 622-6484

NPI assigned

Oct 21, 2024

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

Medicare fee-for-service enrollment

Enrolled in NH

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, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Elliot Professional ServicesGroup PAC ID 6103727920, 429 clinicians

New Hampshire Oncology-Hematology PAGroup PAC ID 0143290759, 14 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Elliot Hospital Hospital, Manchester, NH, CCN 300012
• Concord Hospital Hospital, Concord, NH, CCN 300001

Medicare enrollment (NPD)

Enrolled

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.

• New Hampshire Oncology-Hematology PA

  • Hematology & Oncology Physician
  • Concord, NH
  • NPI 1467485870
  Medicare reassignment Care Compare group NPD
• Elliot Professional Services

  • Internal Medicine Physician
  • Manchester, NH
  • NPI 1285627935
  Medicare reassignment Care Compare group

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

• Concord Hospital, Inc.

  • General Acute Care Hospital
  • Concord, NH
  • NPI 1215988530
  Care Compare affiliation
• Elliot Hospital of the City of Manchester

  • General Acute Care Hospital
  • Manchester, NH
  • NPI 1902996028
  Care Compare affiliation

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

{
    "created_epoch": "1729468800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771200000000",
    "number": "1265253439",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "237 BROOK VILLAGE RD APT 2",
            "city": "NASHUA",
            "state": "NH",
            "postal_code": "030622851",
            "telephone_number": "603-438-1928"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 PLEASANT ST",
            "city": "CONCORD",
            "state": "NH",
            "postal_code": "033017559",
            "telephone_number": "603-622-6484"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "ANNA",
        "credential": "AGACNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-10-21",
        "last_updated": "2026-02-16",
        "certification_date": "2026-02-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "NH",
            "license": "085015-23",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nutrition Works LLC
• Nutrition Works NH LLC
• Yvonne Nyiramugisha
• Courtney Nylen, BA
• Marilyn E Nylen, LMT, NCBTMB
• Christine O'Brien, MSW, LICSW
• Kelly Jean O'Brien, CDA, RDH, MED
• Ryan O'Callaghan, MBA
• Denise O'Connell
• Cara O'Connor, MD

• Nurse Practitioner in Concord, NH
• Providers in Concord, NH by specialty
• Nurse Practitioner in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 16, 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.