Active NPI
Abdul Cader Asmal, MD PHD
- Endocrinology, Diabetes & Metabolism Physician
- Waltham, MA
National Provider Identifier
1144210832
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- License
- 47171
- Practice address
- 40 2ND Ave
Ste 400
Waltham, MA 02451-1132 - Phone
- (781) 522-9000
- Fax
- (781) 522-9095
- NPI assigned
- Oct 25, 2005
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | 47171 | MA | Primary |
Addresses
Primary practice location
40 2ND Ave
Ste 400
Waltham, MA 02451-1132
Mailing address
PO Box 9142
Charlestown, MA 02129-9142
Phone (617) 724-0287
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0134449 | Medicaid | MA | |
| 047171 | Other | MA | TUFTS HEALTH PLAN |
| E05468 | Other | MA | BCBS MA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- HHS exclusion list flag
- Flagged The directory lists this NPI on an HHS exclusion list.
- Credentials
- Doctor of Medicine, Doctor of Philosophy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Massachusetts General Physicians Organization Inc | Past | Accepting new patients |
Organizations & group practices 1
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.
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- NPI 1801874573
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1130198400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1144210832",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 9142",
"city": "CHARLESTOWN",
"state": "MA",
"postal_code": "021299142",
"telephone_number": "617-724-0287",
"fax_number": "617-726-2894"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "40 2ND AVE",
"address_2": "STE 400",
"city": "WALTHAM",
"state": "MA",
"postal_code": "024511132",
"telephone_number": "781-522-9000",
"fax_number": "781-522-9095"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ASMAL",
"first_name": "ABDUL",
"middle_name": "CADER",
"name_prefix": "Dr.",
"credential": "MD PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-10-25",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "MA",
"license": "47171",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "0134449",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "TUFTS HEALTH PLAN",
"identifier": "047171",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBS MA",
"identifier": "E05468",
"state": "MA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Waltham, MA
Sources for this page
- 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.