NPIMap

Individual provider Active NPI

Diomeri Diaz Espinosa, FNP

  • Primary Care Nurse Practitioner
  • Lawrence, MA
National Provider Identifier
1538836408
Registry record updated Oct 14, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Primary Care Nurse PractitionerTaxonomy code 363LP2300X
License
RN2350015 Issued in MA
Practice address
500 Merrimack St
Lawrence, MA 01843-1981
Phone
(978) 557-9800
NPI assigned
Aug 27, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 14, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Primary Care Nurse Practitioner 363LP2300X RN2350015 MA Primary
Registered Nurse 163W00000X RN2350015 MA

Addresses

Primary practice location

500 Merrimack St
Lawrence, MA 01843-1981

Mailing address

34 Haverhill St
Lawrence, MA 01841-2884
Phone (978) 686-0090

Other practice location 1

34 Haverhill St
Lawrence, MA 01841-2884
Phone (978) 686-0090

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250701000112 MA Practitioner - Nurse Practitioner 9032622352 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

34 Haverhill St
Lawrence, MA 01841-2884
Phone (978) 686-0090

500 Merrimack St
Lawrence, MA 01843-1981
Phone (978) 557-8900

81 Highland Ave
Salem, MA 01970-2714
Phone (978) 354-2551

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Greater Lawrence Family Health Center, Inc. Current Accepting new patients
Pentucket Medical Associates, LLC Current Accepting new patients
Greater Lawrence Family Health Center Inc CurrentSince Jun 1, 2025 Accepting new patients
Mass General Brigham Community Physicians Inc. CurrentSince May 25, 2025 Accepting new patients
Mass General Brigham Medical Group Northern Massachusetts Inc CurrentSince Jan 1, 2026 Accepting new patients
Greater Lawrence Family Health Center, Inc. CurrentSince Jun 1, 2025 Accepting new patients
Mass General Brigham Community Physicians Inc CurrentSince May 25, 2025 Accepting new patients

Locations

150 Park St
Lawrence, MA 01841
Phone (978) 685-1770

500 Merrimack St
Lawrence, MA 01843
Phone (978) 557-8800

370 Merrimack St
Lawrence, MA 01843
Phone (978) 557-8800

34 Haverhill St
Lawrence, MA 01841

170 Governors Ave
Medford, MA 02155
Phone (781) 306-6000

81 Highland Ave
Salem, MA 01970
Phone (978) 354-4009

Interoperability endpoints

  • Direct secure messaging: diaz.diomeri.pma@direct.partners.masshiway.net
  • Direct secure messaging: diomeri.diaz.1@23857.direct.athenahealth.com

Organizations & group practices 7

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.

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": "1630022400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760400000000",
    "number": "1538836408",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "34 HAVERHILL ST",
            "city": "LAWRENCE",
            "state": "MA",
            "postal_code": "018412884",
            "telephone_number": "978-686-0090"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 MERRIMACK ST",
            "city": "LAWRENCE",
            "state": "MA",
            "postal_code": "018431981",
            "telephone_number": "978-557-9800"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "34 Haverhill St",
            "address_purpose": "LOCATION",
            "city": "Lawrence",
            "state": "MA",
            "postal_code": "018412884",
            "country_code": "US",
            "telephone_number": "978-686-0090",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ ESPINOSA",
        "first_name": "DIOMERI",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-08-27",
        "last_updated": "2025-10-14",
        "certification_date": "2025-10-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP2300X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Primary Care",
            "state": "MA",
            "license": "RN2350015",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "MA",
            "license": "RN2350015",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lawrence, MA

Sources for this page

Verify at the official NPI Registry.