Lydia K. Rex, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

1019363 Issued in MA

Practice address

145 Rosemary Street
Suite C
Needham, MA 02494-3259

Phone

(781) 235-7900

Fax

(781) 237-9930

NPI assigned

Jun 18, 2020

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

Family Practice

Education

Tufts University School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Wellesley Family Care Associates PCGroup PAC ID 5991861411, 21 clinicians

Greater Lawrence Family Health Center IncGroup PAC ID 0446221956, 118 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Merrimack Health Lawrence Hospital Hospital, Lawrence, MA, CCN 220010

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lydia.rex.1@23857.direct.athenahealth.com

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.

• Greater Lawrence Family Health Center, Inc.

  • Federally Qualified Health Center (FQHC)
  • Lawrence, MA
  • NPI 1699774646
  Medicare reassignment Care Compare group NPD
• Wellesley Family Care Associates, PC

  • Family Medicine Physician
  • Wellesley, MA
  • NPI 1902056310
  Medicare reassignment Care Compare group
• Lawrence General Hospital

  • General Acute Care Hospital
  • Lawrence, MA
  • NPI 1750381281
  Medicare reassignment NPD
• General Primary Care of Lawrence

  • Hospitalist Physician
  • Lawrence, MA
  • NPI 1801023189
  NPD
• Greater Lawrence Family Health Center Inc

  • Federally Qualified Health Center (FQHC)
  • Haverhill, MA
  • NPI 1003437344
  NPD
• Greater Lawrence Family Health Center, Inc.

  • Federally Qualified Health Center (FQHC)
  • Lawrence, MA
  • NPI 1013284843
  NPD
• Lawrence General Hospital

  • Allergy & Immunology Physician
  • Lawrence, MA
  • NPI 1881272102
  NPD

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

• Lawrence General Hospital

  • General Acute Care Hospital
  • Lawrence, MA
  • NPI 1750381281
  Care Compare affiliation

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

{
    "created_epoch": "1592438400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1275159071",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "145 ROSEMARY STREET",
            "address_2": "SUITE C",
            "city": "NEEDHAM",
            "state": "MA",
            "postal_code": "024943259",
            "telephone_number": "781-235-7900",
            "fax_number": "781-237-9930"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "145 ROSEMARY STREET",
            "address_2": "SUITE C",
            "city": "NEEDHAM",
            "state": "MA",
            "postal_code": "024943259",
            "telephone_number": "781-235-7900",
            "fax_number": "781-237-9930"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "REX",
        "first_name": "LYDIA",
        "middle_name": "K.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-06-18",
        "last_updated": "2026-07-13",
        "certification_date": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MA",
            "license": "285361",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MA",
            "license": "1019363",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110163441A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kathryn Reid, LICSW
• Campbell Reiff, RD
• Megan Marie Rennick
• Lydia Jane Reppucci, OTR/L
• Resilient Physical Therapy and Wellness, LLC
• Magdalena Reyes, MD
• Anielle Rias
• Christopher Ricardi
• Nicole Ricciardelli
• Jessica Caley Rice, LCSW

• Family Medicine Physician in Needham, MA
• Providers in Needham, MA by specialty
• Family Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.