Giulia Sara Louissaint, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

1019630 Issued in MA

Practice address

21 Highland Ave Ste 3
Newburyport, MA 01950-3873

Phone

(978) 572-1149

NPI assigned

Mar 26, 2019

Last updated

Dec 2, 2025By 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 names 1

• Giulia Sara Rizzo Former name

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

General Surgery

Education

Tufts University School of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Seacoast Affiliated Group Practice IncGroup PAC ID 1658357843, 50 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Anna Jaques Hospital Hospital, Newburyport, MA, CCN 220029

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Seacoast Affiliated Group Practice, Inc.

  • Clinic/Center
  • Newburyport, MA
  • NPI 1801892344
  Medicare reassignment Care Compare group NPD
• Baystate Medical Practices, Inc

  • Emergency Medical Services (Emergency Medicine) Physician
  • Springfield, MA
  • NPI 1548205909

  Surgery

  Medicare reassignment NPD
• River Valley Infectious Disease Specialists Inc.

  • Infectious Disease Physician
  • Newburyport, MA
  • NPI 1366712002
  NPD (past)

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

• Anna Jaques Hospital

  • General Acute Care Hospital
  • Newburyport, MA
  • NPI 1992779482
  Care Compare affiliation

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

{
    "created_epoch": "1553558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764633600000",
    "number": "1164983847",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21 HIGHLAND AVE STE 3",
            "city": "NEWBURYPORT",
            "state": "MA",
            "postal_code": "019503873",
            "telephone_number": "978-572-1149"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21 HIGHLAND AVE STE 3",
            "city": "NEWBURYPORT",
            "state": "MA",
            "postal_code": "019503873",
            "telephone_number": "978-572-1149"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOUISSAINT",
        "first_name": "GIULIA",
        "middle_name": "SARA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-26",
        "last_updated": "2025-12-02",
        "certification_date": "2025-12-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MA",
            "license": "1019630",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GIULIA",
            "last_name": "RIZZO",
            "middle_name": "SARA",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Mary Kathryn Lonegan
• Jennifer Kathryn Long, FNP-C
• Ronald Longpre, PSY.D.
• Anthony P Lopez, M.D.
• Meghan Collins Lortie, AGPCNP-BC
• Ronald G Lovett, MSW
• Caroline Lowenstein, DPT
• Jasmine Lu
• Courtney R Lucey, PA-C
• Isaac Lucken, PA-C

• Surgery Physician in Newburyport, MA
• Providers in Newburyport, MA by specialty
• Surgery Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 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.
• 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.