Jacqueline L Machain, ACNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

RN254598 Issued in MA

Practice address

55 Fruit St
Boston, MA 02114-2696

Phone

(617) 643-2322

NPI assigned

Feb 21, 2007

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 MA

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

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Nurse Practitioner, Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: machain.jacqueline.mgh@direct.partners.masshiway.net

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.

• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573
  Medicare reassignment NPD
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment NPD
• General Hospital Corp

  dba Massachusetts General Hospital Outpatient Pharmacy

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1508390014
  NPD
• Gary S. Perlmutter, M.D., P.C.

  • Orthopaedic Surgery Physician
  • Boston, MA
  • NPI 1164589420
  NPD (past)
• John M. Siliski, M.D., P.C.

  • Orthopaedic Surgery Physician
  • Boston, MA
  • NPI 1013074384
  NPD (past)

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

{
    "created_epoch": "1172016000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762214400000",
    "number": "1639214893",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2014 WASHINGTON ST",
            "address_2": "GREEN MOB SUITE 561",
            "city": "NEWTON",
            "state": "MA",
            "postal_code": "024621607",
            "telephone_number": "617-244-1214",
            "fax_number": "617-244-0848"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-643-2322"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACHAIN",
        "first_name": "JACQUELINE",
        "middle_name": "L",
        "credential": "ACNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-21",
        "last_updated": "2025-11-04",
        "certification_date": "2025-11-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MA",
            "license": "RN254598",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Camila Machado de Souza, M.D.
• Fedel Andres Machado Rivas, MD
• Julia Machado
• Monique Ann Machado, ANP-BC
• Paige Machado, MD
• Joanna Machain
• Suman Machinani, M.D.
• Julie L Macht, M.S., CCC-SLP
• Eileen Machuca
• Wendy Macias Konstantopoulos, M.D., M.P.H.

• Nurse Practitioner in Boston, MA
• Providers in Boston, MA by specialty
• Nurse Practitioner in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 4, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.