Active NPI
Alex H Hsieh, MD
- Emergency Medicine Physician
- Brockton, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 292085
- Practice address
- 235 N Pearl St
Brockton, MA 02301-1794 - Phone
- (508) 427-3000
- NPI assigned
- Apr 24, 2019
- Last updated
- Apr 9, 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 292085 | MA | Primary |
| Emergency Medicine Physician | 207P00000X | MD21273 | RI | |
| Emergency Medicine Physician | 207P00000X | C1-0027192 | DE |
Addresses
Primary practice location
235 N Pearl St
Brockton, MA 02301-1794
Mailing address
960 Massachusetts Ave Ste 2
Boston, MA 02118-2690
Phone (617) 414-4505
Other practice location 1
825 Chalkstone Ave
Providence, RI 02908-4728
Phone (401) 456-2000
Other practice location 2
200 High Service Ave
North Providence, RI 02904-5113
Phone (401) 456-3000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA, DE, RI
- 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
- Emergency Medicine
- Education
- Other, 2019
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
25 Highland Ave
Newburyport, MA 01950-3867
Phone (978) 463-1000
640 S State St
Bayhealth Emergency Physicians KGH
Dover, DE 19901-3530
Phone (302) 744-6156
70 E St
Methuen, MA 01844-4597
Phone (978) 687-0151
825 Chalkstone Ave
Providence, RI 02908-4728
Phone (401) 456-2000
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| C1-0027192 | DE | MD | Emergency Medicine Physician |
| 292085 | MA | MD | Emergency Medicine Physician |
| MD21273 | RI | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Martha's Vineyard Hospital, Inc. | Emergency Medicine | Current | Accepting new patients |
| Martha's Vineyard Hospital, Inc. | Current | Accepting new patients | |
| Newburyport Emergency Physicians, PLLC | Emergency Medicine | Current | Accepting new patients |
| Bayhealth Emergency Physicians LLC | Emergency Medicine | Current | Accepting new patients |
| Community Medical Associates, Inc. | Current | Accepting new patients | |
| BMC Affiliated Physicians, Inc. | Emergency Medicine | Current | Accepting new patients |
| Steward Emergency Physicians, Inc | Emergency Medicine | Current | Accepting new patients |
| Martha's Vineyard Hospital, Inc. | Current | Accepting new patients |
Locations
640 S State St
Dover, DE 19901
Phone (302) 744-4700
200 Groton Rd
Ayer, MA 01432
Phone (978) 784-9000
960 Massachusetts Ave
Ste 2
Boston, MA 02118
235 N Pearl St
Brockton, MA 02301
Phone (508) 427-2525
140 Lincoln Ave
Haverhill, MA 01830
Phone (978) 374-2000
1 General St
Lawrence, MA 01841
Phone (978) 946-8103
70 East St
Methuen, MA 01844
Phone (978) 682-1906
25 Highland Ave
Newburyport, MA 01950
Phone (978) 258-4734
1 Hospital Rd
Oak Bluffs, MA 02557
Phone (508) 684-4500
88 Washington St
Taunton, MA 02780
Phone (508) 828-7000
Interoperability endpoints
- ahsieh259907@direct.bmc.masshiway.net
Organizations & group practices 10
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Family Medicine Physician
- Lawrence, MA
- NPI 1144544040
-
- Emergency Medicine Physician
- Newburyport, MA
- NPI 1215724364
-
- Emergency Medicine Physician
- Dover, DE
- NPI 1073012696
-
- Emergency Medicine Physician
- North Providence, RI
- NPI 1639537335
-
- Internal Medicine Physician
- Boston, MA
- NPI 1245320910
Emergency Medicine
-
- Internal Medicine Physician
- Oak Bluffs, MA
- NPI 1194866210
Emergency Medicine
-
- Emergency Medicine Physician
- Ayer, MA
- NPI 1780971275
-
dba Merrimack Health Lawrence Hospital
- General Acute Care Hospital
- Lawrence, MA
- NPI 1750381281
-
- Critical Access Hospital
- Oak Bluffs, MA
- NPI 1134206386
-
dba Martha's Vineyard Hospital
- Rural Health Clinic/Center
- Oak Bluffs, MA
- NPI 1508413725
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Newburyport, MA
- NPI 1992779482
-
dba Merrimack Health Methuen Hospital
- General Acute Care Hospital
- Methuen, MA
- NPI 1265267991
-
dba Bayhealth Hospital, Sussex Campus
- General Acute Care Hospital
- Milford, DE
- NPI 1023006434
-
dba Roger Williams Medical Center
- General Acute Care Hospital
- Providence, RI
- NPI 1013332014
-
dba Our Lady of Fatima Hospital
- General Acute Care Hospital
- North Providence, RI
- NPI 1871918870
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1556064000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1775692800000",
"number": "1760046833",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "960 MASSACHUSETTS AVE STE 2",
"city": "BOSTON",
"state": "MA",
"postal_code": "021182690",
"telephone_number": "617-414-4505"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "235 N PEARL ST",
"city": "BROCKTON",
"state": "MA",
"postal_code": "023011794",
"telephone_number": "508-427-3000"
}
],
"practiceLocations": [
{
"address_1": "825 Chalkstone Ave",
"address_purpose": "LOCATION",
"city": "Providence",
"state": "RI",
"postal_code": "029084728",
"country_code": "US",
"telephone_number": "401-456-2000",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "200 High Service Ave",
"address_purpose": "LOCATION",
"city": "North Providence",
"state": "RI",
"postal_code": "029045113",
"country_code": "US",
"telephone_number": "401-456-3000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "HSIEH",
"first_name": "ALEX",
"middle_name": "H",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-04-24",
"last_updated": "2026-04-09",
"certification_date": "2026-04-09",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "MA",
"license": "292085",
"primary": true
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "RI",
"license": "MD21273",
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "DE",
"license": "C1-0027192",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Brockton, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 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.
- 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.