Active NPI
Edward M Hallowell, M.D.
- Psychiatry Physician
- Sudbury, MA
National Provider Identifier
1184661365
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 44431
- Practice address
- 142 North Road
The Hallowell Center
Sudbury, MA 01776 - Phone
- (978) 287-0810
- NPI assigned
- May 31, 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | 44431 | MA | Primary |
Addresses
Primary practice location
142 North Road
The Hallowell Center
Sudbury, MA 01776
Mailing address
142 North Road
The Hallowell Center
Sudbury, MA 01776
Phone (978) 287-0810
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Jun 11, 2018 through Jun 11, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 44431 | MA | MD | Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149033600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1184661365",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "142 NORTH ROAD",
"address_2": "THE HALLOWELL CENTER",
"city": "SUDBURY",
"state": "MA",
"postal_code": "01776",
"telephone_number": "978-287-0810"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "142 NORTH ROAD",
"address_2": "THE HALLOWELL CENTER",
"city": "SUDBURY",
"state": "MA",
"postal_code": "01776",
"telephone_number": "978-287-0810"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HALLOWELL",
"first_name": "EDWARD",
"middle_name": "M",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-31",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "MA",
"license": "44431",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Sudbury, MA
- Janet L Hadley, COTA
- Rachel Alexandra Ellen Haggard, RD, LDN
- Eunice Yunhee Hahm
- Jeffrey B Hainsworth, D.O.
- Hallowell Center P. C.
- Harbor Strength Physical Therapy LLC
- Gail Hardenbergh, LICSW
- Tracy Norelle Hartstone Caltabiano, LCSW
- Coleen Deborah Hayes, COTA
- Healing Hearts Nuring and Homecare Services
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.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.