Active NPI
David A Shaywitz, MD PHD
- Endocrinology, Diabetes & Metabolism Physician
- Boston, MA
National Provider Identifier
1093705436
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endocrinology, Diabetes & Metabolism Physician
- License
- MS0470752A
- Practice address
- 0 Emerson PL
Ste 112, Neuroendocrine
Boston, MA 02114-2241 - Phone
- (617) 726-7948
- Fax
- (617) 726-1241
- NPI assigned
- Oct 26, 2005
- Last updated
- Jul 13, 2026
- 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 213906 | MA | |
| Endocrinology, Diabetes & Metabolism Physician | 207RE0101X | MS0470752A | MA | Primary |
Addresses
Primary practice location
0 Emerson PL
Ste 112, Neuroendocrine
Boston, MA 02114-2241
Mailing address
PO Box 9142
Mass General Physician Organization
Charlestown, MA 02129-9142
Phone (617) 724-0287
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 468070 | Other | MA | TUFTS HEALTH PLAN |
| 2100924 | Medicaid | MA | |
| J28571 | 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)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 213906 | MA | MD | Internal Medicine Physician |
| MS0470752A | MA | MD | Endocrinology, Diabetes & Metabolism Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1130284800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1093705436",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 9142",
"address_2": "MASS GENERAL PHYSICIAN ORGANIZATION",
"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": "0 EMERSON PL",
"address_2": "STE 112, NEUROENDOCRINE",
"city": "BOSTON",
"state": "MA",
"postal_code": "021142241",
"telephone_number": "617-726-7948",
"fax_number": "617-726-1241"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SHAYWITZ",
"first_name": "DAVID",
"middle_name": "A",
"name_prefix": "Dr.",
"credential": "MD PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-10-26",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MA",
"license": "213906",
"primary": false
},
{
"code": "207RE0101X",
"taxonomy_group": "",
"desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
"state": "MA",
"license": "MS0470752A",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "TUFTS HEALTH PLAN",
"identifier": "468070",
"state": "MA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2100924",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBS MA",
"identifier": "J28571",
"state": "MA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Boston, 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.