Active NPI
M. James Lenhard, MD
- Endocrinology, Diabetes & Metabolism Physician
- Burlington, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- License
- 73142
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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, NH
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
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
- Lahey Clinic Inc
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
- Christiana Hospital
- Lahey Hospital & Medical Center, Burlington
- Beth Israel Deaconess Medical Center
- Winchester Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 73142 | MA | MD | Endocrinology, Diabetes & Metabolism Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Core Physicians LLC | Current | Accepting new patients | |
| Christiana Care Health Services Inc | Current | Accepting new patients | |
| Christiana Care Health Services Inc | Endocrinology, Diabetes & Metabolism | Current | Accepting new patients |
| Lahey Clinic, Inc | Current | Accepting new patients | |
| Christiana Care Health Services, Inc | Endocrinology, Diabetes & Metabolism | Current | Accepting new patients |
| Core Physicians, LLC | Current | Accepting new patients | |
| Lahey Clinic, Inc. | Current | 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
- 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.
-
- Family Medicine Physician
- Exeter, NH
- NPI 1336330588
-
- Internal Medicine Physician
- Peabody, MA
- NPI 1063447316
-
- Internal Medicine Physician
- Burlington, MA
- NPI 1538194980
-
- Endocrinology, Diabetes & Metabolism Physician
- Wilmington, DE
- NPI 1770568107
-
- Endocrinology, Diabetes & Metabolism Physician
- Wilmington, DE
- NPI 1407830748
-
- Neurology Physician
- Chadds Ford, PA
- NPI 1881228484
-
- Durable Medical Equipment & Medical Supplies
- Raymond, NH
- NPI 1083085724
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Boston, MA
- NPI 1548202641
-
- General Acute Care Hospital
- Burlington, MA
- NPI 1558392563
-
- General Acute Care Hospital
- Beverly, MA
- NPI 1316917941
-
- Psychiatric Hospital Unit
- Beverly, MA
- NPI 1407827710
-
- General Acute Care Hospital
- Winchester, MA
- NPI 1790740777
-
- General Acute Care Hospital
- Wilmington, DE
- NPI 1134194038
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 24, 2025; 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.