Active NPI
Margo Knapp, MD
- Child & Adolescent Psychiatry Physician
- Boston, MA
National Provider Identifier
1609092550
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Child & Adolescent Psychiatry Physician
- License
- C41616
- Practice address
- 82 Marlborough St
Boston, MA 02116 - Phone
- (781) 764-2501
- NPI assigned
- Apr 18, 2007
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 6
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | 72103 | MA | |
| Psychiatry Physician | 2084P0800X | F6831 | TX | |
| Psychiatry Physician | 2084P0800X | C41616 | CA | |
| Child & Adolescent Psychiatry Physician | 2084P0804X | 72103 | MA | |
| Child & Adolescent Psychiatry Physician | 2084P0804X | F6831 | TX | |
| Child & Adolescent Psychiatry Physician | 2084P0804X | C41616 | CA | Primary |
Addresses
Primary practice location
82 Marlborough St
Boston, MA 02116
Mailing address
Post Office Box 1434
Brookline, MA 02446
Phone (781) 764-2501
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3033457 | Medicaid | 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
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 72103 | MA | MD | Psychiatry Physician |
| C41616 | CA | MD | Child & Adolescent Psychiatry Physician |
| F6831 | TX | MD | Child & Adolescent Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1176854400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1609092550",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "POST OFFICE BOX 1434",
"city": "BROOKLINE",
"state": "MA",
"postal_code": "02446",
"telephone_number": "781-764-2501"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "82 MARLBOROUGH ST",
"city": "BOSTON",
"state": "MA",
"postal_code": "02116",
"telephone_number": "781-764-2501"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KNAPP",
"first_name": "MARGO",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2007-04-18",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "MA",
"license": "72103",
"primary": false
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "TX",
"license": "F6831",
"primary": false
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "CA",
"license": "C41616",
"primary": false
},
{
"code": "2084P0804X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
"state": "MA",
"license": "72103",
"primary": false
},
{
"code": "2084P0804X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
"state": "TX",
"license": "F6831",
"primary": false
},
{
"code": "2084P0804X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
"state": "CA",
"license": "C41616",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "3033457",
"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 Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.