Individual provider Active NPI

Lauren Millhollin, PA-C

  • Physician Assistant
  • Boston, MA
National Provider Identifier
1508414343
Registry record updated Jan 16, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
800 Washington St # 306
Boston, MA 02111-1552
Phone
(617) 636-7846
Fax
(617) 636-5178
NPI assigned
Aug 26, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 16, 2024

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X Primary

Addresses

Primary practice location

800 Washington St # 306
Boston, MA 02111-1552

Mailing address

800 Washington St # 306
Boston, MA 02111-1552
Phone (617) 636-7846

Other names 1

  • Lauren Bourassa Former name

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20200213001689 MA Practitioner - Physician Assistant 2961838768 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Atrius Health IncGroup PAC ID 4789588641, 1,214 clinicians

Practice addresses (Care Compare)

1 Lyons St
Dedham, MA 02026-5599
Phone (781) 329-1400

100 2ND Ave
Needham, MA 02494-2809
Phone (781) 726-4800

133 Brookline Ave
Boston, MA 02215-3904
Phone (617) 421-1000

90 Libbey Industrial Pkwy
Suite 201
Weymouth, MA 02189-3157
Phone (781) 682-0606

Hospital & facility affiliations

  • New England Baptist Hospital Hospital, Boston, MA, CCN 220088
  • Spaulding Rehabilitation Hospital Inpatient rehabilitation facility, Charlestown, MA, CCN 223034

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Atrius Health, Inc. Physician Assistant CurrentSince Jun 2, 2025 Accepting new patients

Locations

133 Brookline Ave
Boston, MA 02215
Phone (617) 421-1000

111 Grossman Dr
Braintree, MA 02184
Phone (781) 849-1000

Interoperability endpoints

  • Direct secure messaging: lbourassa55281@tuftsmedicine.direct-ci.com
  • Direct secure messaging: lmillhollinpa401233@direct.atrius.masshiway.net

Organizations & group practices 3

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1566777600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1705363200000",
    "number": "1508414343",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "800 WASHINGTON ST # 306",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021111552",
            "telephone_number": "617-636-7846",
            "fax_number": "617-636-5178"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 WASHINGTON ST # 306",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021111552",
            "telephone_number": "617-636-7846",
            "fax_number": "617-636-5178"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MILLHOLLIN",
        "first_name": "LAUREN",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-08-26",
        "last_updated": "2024-01-16",
        "certification_date": "2024-01-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "LAUREN",
            "last_name": "BOURASSA",
            "credential": "PA-C",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.