Individual provider Active NPI

M. James Lenhard, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Burlington, MA
National Provider Identifier
1245218148
Registry record updated Jul 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
73142 Issued in MA
Practice address
41 Mall Rd
Burlington, MA 01805-0001
Phone
(781) 744-8000
NPI assigned
Jan 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 24, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X C10004165 DE
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 73142 MA Primary

Addresses

Primary practice location

41 Mall Rd
Burlington, MA 01805-0001

Mailing address

PO Box 24520
New York, NY 10087-3720
Phone (781) 744-8085

Other practice location 1

3506 Kennett Pike
Wilmington, DE 19807
Phone (302) 661-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DE, MA, NH3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20080417000374 DE Practitioner - Endocrinology 1153409065 Reassigns benefits to 1 organization
I20250724002977 MA Practitioner - Endocrinology 1153409065 Reassigns benefits to 2 organizations
I20250916003385 NH Practitioner - Endocrinology 1153409065 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
Albany Medical College of Union University, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Core Physicians LLCGroup PAC ID 2769563253, 290 clinicians
Lahey Clinic IncGroup PAC ID 2264336528, shared by 3 NPIs, 1,381 clinicians

Practice addresses (Care Compare)

14 A Tsienneto Rd
Suite 200
Derry, NH 03038-1505
Phone (603) 404-6800

29 Mall Rd
Burlington, MA 01805-0001

41 Mall Rd
Burlington, MA 01805-0001

Hospital & facility affiliations

  • Northeast Hospital Corporation Hospital, Beverly, MA, CCN 220033
  • Christiana Hospital Hospital, Newark, DE, CCN 080001
  • Lahey Hospital & Medical Center, Burlington Hospital, Burlington, MA, CCN 220171
  • Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086
  • Winchester Hospital Hospital, Winchester, MA, CCN 220105

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
73142MAMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Core Physicians LLC CurrentSince Sep 6, 2025 Accepting new patients
Christiana Care Health Services Inc CurrentSince Oct 13, 1993 Accepting new patients
Christiana Care Health Services Inc Endocrinology, Diabetes & Metabolism CurrentSince Oct 13, 1993 Accepting new patients
Lahey Clinic, Inc CurrentSince Jul 1, 2025 Accepting new patients
Christiana Care Health Services, Inc Endocrinology, Diabetes & Metabolism Current Accepting new patients
Core Physicians, LLC CurrentSince Sep 6, 2025 Accepting new patients
Lahey Clinic, Inc. CurrentSince Jul 1, 2025 Accepting new patients

Locations

4735 Ogletown Stanton Rd
Ste 3201
Newark, DE 19713
Phone (302) 623-4323

3506 Kennett Pike
Wilmington, DE 19807
Phone (302) 661-3000

1401 Foulk Rd
Ste 100B
Wilmington, DE 19803
Phone (302) 320-9440

67 S Bedford St
Ste 401W
Burlington, MA 01803

41 Mall Rd
Burlington, MA 01805
Phone (781) 744-8400

14A Tsienneto Rd
Derry, NH 03038
Phone (603) 537-1380

14A Tsienneto Rd
Ste 200
Derry, NH 03038
Phone (603) 404-6800

14 Tsienneto Rd
#200A
Derry, NH 03038
Phone (603) 518-6561

3 Alumni Dr
Ste 301
Exeter, NH 03833
Phone (603) 658-1180

7 Holland Way
#1
Exeter, NH 03833

Interoperability endpoints

  • FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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 and National Provider Directory roles.

Hospital & facility affiliations 6

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": "1136246400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753315200000",
    "number": "1245218148",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 24520",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100873720",
            "telephone_number": "781-744-8085"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "41 MALL RD",
            "city": "BURLINGTON",
            "state": "MA",
            "postal_code": "018050001",
            "telephone_number": "781-744-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3506 Kennett Pike",
            "address_purpose": "LOCATION",
            "city": "Wilmington",
            "state": "DE",
            "postal_code": "19807",
            "country_code": "US",
            "telephone_number": "302-661-3000",
            "fax_number": "302-661-3470",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LENHARD",
        "first_name": "M. JAMES",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-03",
        "last_updated": "2025-07-24",
        "certification_date": "2025-07-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "DE",
            "license": "C10004165",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MA",
            "license": "73142",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Burlington, MA

Sources for this page

Verify at the official NPI Registry.