Individual provider Active NPI

Lydia Rose Maurer, MD

  • Surgery Physician
  • Philadelphia, PA
National Provider Identifier
1225484116
Registry record updated Dec 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
277964 Issued in MA
Practice address
3400 Spruce Street
Philadelphia, PA 19104-3309
Phone
(978) 808-3232
NPI assigned
May 10, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 16, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 277964 MA Primary
Surgical Critical Care Physician 2086S0102X 277964 MA

Addresses

Primary practice location

3400 Spruce Street
Philadelphia, PA 19104-3309

Mailing address

51 N 39TH St
1 Mob, Ste 120
Philadelphia, PA 19104
Phone (978) 808-3232

Other practice location 1

165 Cambridge St
Boston, MA 02114-2783
Phone (617) 643-2439

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA, MA2 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
I20240710002993 PA Practitioner - General SurgeryPractitioner - Critical Care (Intensivists) 4284920570 Reassigns benefits to 2 organizations
I20250815002977 MA Practitioner - General Surgery 4284920570 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Stanford University School of Medicine, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The General Hospital CorporationGroup PAC ID 6507803806, 1,275 clinicians
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

165 Cambridge St
Boston, MA 02114-2783
Phone (617) 726-2000

165 Cambridge St
Suite 501
Boston, MA 02114-2759
Phone (617) 726-4900

Hospital & facility affiliations

  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
  • North Shore Medical Center - Hospital, Salem, MA, CCN 220035

Merit-based Incentive Payment System (MIPS)

Final score
84.91 of 100Reported as group
Quality
73.58
Promoting interoperability
100
Improvement activities
40
Cost
76.13

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Hernia repair - groin (open)1-10
Hernia repair (minimally invasive)1-10
Upper gastrointestinal (GI) endoscopy for acid reflux1-10
Removal of tissue1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
University of Penn-Medical Group CurrentSince Aug 1, 2024 Accepting new patients
University of Penn-Medical Group CurrentSince Aug 1, 2024 Accepting new patients
University of Penn - Medical Group CurrentSince Aug 13, 2024 Accepting new patients
University of Penn-Medical Group Current Accepting new patients
Massachusetts General Physicians Organization Inc Surgery CurrentSince Sep 15, 2025 Accepting new patients
General Hospital Corp Current Accepting new patients
The General Hospital Corporation CurrentSince Sep 15, 2025 Accepting new patients
Presbyterian Medical Center of the University of Pennsylvania Health S Past Accepting new patients
Trustees of the University of Pennsylvania Past Accepting new patients

Locations

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

165 Cambridge St
Ste 501
Boston, MA 02114
Phone (617) 726-4600

55 Fruit St
Boston, MA 02114

165 Cambridge St
Boston, MA 02114
Phone (617) 726-4600

62 13th St
Charlestown, MA 02129
Phone (617) 724-4260

3624 Market St
Fl 2
Philadelphia, PA 19104
Phone (215) 615-3669

Interoperability endpoints

  • Direct secure messaging: maurer.lydia.mgh@direct.partners.masshiway.net

Organizations & group practices 9

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": "1462838400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765843200000",
    "number": "1225484116",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "51 N 39TH ST",
            "address_2": "1 MOB, STE 120",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "19104",
            "telephone_number": "978-808-3232"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3400 SPRUCE STREET",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191043309",
            "telephone_number": "978-808-3232"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "165 Cambridge St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142783",
            "country_code": "US",
            "telephone_number": "617-643-2439",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAURER",
        "first_name": "LYDIA",
        "middle_name": "ROSE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-05-10",
        "last_updated": "2025-12-16",
        "certification_date": "2025-12-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MA",
            "license": "277964",
            "primary": true
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "MA",
            "license": "277964",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Philadelphia, PA

Sources for this page

Verify at the official NPI Registry.