Individual provider Active NPI

Sacha N Uljon, MD, PHD

  • Clinical Pathology Physician
  • Boston, MA
National Provider Identifier
1194897819
Registry record updated Jul 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Pathology PhysicianTaxonomy code 207ZC0006X
License
239732 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2696
Phone
(617) 643-0800
NPI assigned
Nov 15, 2006
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 28, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Pathology/Laboratory Medicine Physician 207ZP0105X 239732 MA
Clinical Pathology Physician 207ZC0006X 239732 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2696

Mailing address

89 Park Dr
#6
Boston, MA 02215-5254
Phone (917) 449-0586

Other practice location 1

1153 Centre St
Jamaica Plain, MA 02130-3446
Phone (617) 983-7000

Other practice location 2

75 Francis St
Boston, MA 02115-6110
Phone (917) 449-0586

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, NH2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20110223000675 MA Practitioner - Pathology 7012198054 Reassigns benefits to 3 organizations
I20200909002449 NH Practitioner - Pathology 7012198054 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pathology
Education
Other, 2006
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-0287

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
228454MAMDClinical Pathology/Laboratory Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The General Hospital Corporation CurrentSince Aug 1, 2018 Accepting new patients
General Hospital Corp Current Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

Interoperability endpoints

  • Direct secure messaging: uljon.sacha.mgh@direct.partners.masshiway.net

Organizations & group practices 4

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 5

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": "1163548800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785196800000",
    "number": "1194897819",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "89 PARK DR",
            "address_2": "#6",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155254",
            "telephone_number": "917-449-0586"
        },
        {
            "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": "617-643-0800"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1153 Centre St",
            "address_purpose": "LOCATION",
            "city": "Jamaica Plain",
            "state": "MA",
            "postal_code": "021303446",
            "country_code": "US",
            "telephone_number": "617-983-7000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "917-449-0586",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ULJON",
        "first_name": "SACHA",
        "middle_name": "N",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-11-15",
        "last_updated": "2026-07-28",
        "certification_date": "2026-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0105X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology/Laboratory Medicine",
            "state": "MA",
            "license": "239732",
            "primary": false
        },
        {
            "code": "207ZC0006X",
            "taxonomy_group": "",
            "desc": "Pathology, Clinical Pathology",
            "state": "MA",
            "license": "239732",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.