Active NPI
Steven Lau
- Radiation Oncology Physician
- Boston, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Radiation Oncology Physician
- License
- A154145
- Practice address
- 75 Francis St
Boston, MA 02115-6106 - Phone
- (617) 732-5500
- NPI assigned
- Mar 18, 2013
- Last updated
- Oct 4, 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 |
|---|---|---|---|---|
| Radiation Oncology Physician | 2085R0001X | A154145 | CA | Primary |
| Radiation Oncology Physician | 2085R0001X | 1026034 | MA |
Addresses
Primary practice location
75 Francis St
Boston, MA 02115-6106
Mailing address
75 Francis St
Boston, MA 02115-6110
Phone (617) 732-6310
Other practice location 1
55 Fruit St
Boston, MA 02114-2696
Phone (617) 726-8650
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA, OR, MA
- 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
- Radiation Oncology
- Education
- University of California, San Diego School of Medicine, 2013
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
18300 Roscoe Blvd
Northridge, CA 91325-4105
Phone (818) 885-8500
200 UCLA Med Plaza
B265
Los Angeles, CA 90024-6951
Phone (310) 825-9304
27235 Tourney Rd
Suite 1400
Valencia, CA 91355-5908
Phone (661) 287-0010
75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500
757 Westwood PLZ
Los Angeles, CA 90095-8358
Phone (310) 825-8021
860 Park View Dr N
El Segundo, CA 90245-4914
Phone (310) 794-7301
89 Forbes Blvd
Mansfield, MA 02048-1281
Phone (857) 307-3700
Hospital & facility affiliations
- Ronald Reagan UCLA Medical Center
- Santa Monica - UCLA Med Ctr & Orthopaedic Hospital
- Northridge Hospital Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 75 of 100
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A154145 | CA | MD | Radiation Oncology Physician |
| 1026034 | MA | MD | Radiation Oncology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| The General Hospital Corporation | Current | Accepting new patients | |
| Brigham & Womens Physicians Organization Inc | Radiation Oncology | Current | Accepting new patients |
| Bay Area Hospital District | Current | Accepting new patients | |
| Bay Area Hospital District | Current | Accepting new patients | |
| Coastal Radiation Oncology Medical Group, Inc. | Radiation Oncology | Current | Accepting new patients |
| The Regents of the University of California | Radiation Oncology | Current | Accepting new patients |
| Massachusetts General Physicians Organization Inc | Current | Accepting new patients | |
| Coastal Radiation Oncology Medical Group Inc | Radiation Oncology | Current | Accepting new patients |
| Coastal Radiation Oncology Medical Group Inc | Radiation Oncology | Current | Accepting new patients |
| UCLA Medical Group | Past | Accepting new patients |
Locations
1213 E Ocean Ave
Ste 100
Lompoc, CA 93436
Phone (805) 736-8628
3951 Katella Ave
Ste 102
Los Alamitos, CA 90720
Phone (562) 799-3196
200 UCLA Medical Plz
Ste B265
Los Angeles, CA 90095
Phone (310) 267-9099
5767 W Century Blvd
Ste 400
Los Angeles, CA 90045
Phone (310) 301-5200
File 2939
Los Angeles, CA 90074
Phone (310) 794-6596
Dept LA 25339
Pasadena, CA 91185
1069 Los Palos Dr
Salinas, CA 93901
Phone (831) 758-2724
1223 16th St
Ste 1100
Santa Monica, CA 90404
Phone (310) 794-4733
2985 Sycamore Dr
Simi Valley, CA 93065
Phone (805) 584-6611
274 Heather Ct
Templeton, CA 93465
Phone (805) 434-1859
2230 Lynn Rd
Ste 103
Thousand Oaks, CA 91360
Phone (805) 462-0745
27235 Tourney Rd
Ste 1400
Valencia, CA 91355
Phone (661) 253-5858
2900 Loma Vista Rd
Ste 100
Ventura, CA 93003
Phone (805) 648-5191
1240 S Westlake Blvd
Ste 103
Westlake Vlg, CA 91361
Phone (805) 482-2419
55 Fruit St
Boston, MA 02114
75 Francis St
Boston, MA 02115
101 Columbian St
Fl 3
Weymouth, MA 02190
Phone (781) 624-4800
1775 Thompson Rd
Coos Bay, OR 97420
Phone (541) 269-8090
2650 N 17th St
Coos Bay, OR 97420
Phone (541) 267-5411
Interoperability endpoints
- slau1358101@direct.uclahealth.org
Organizations & group practices 11
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.
-
- Internal Medicine Physician
- Boston, MA
- NPI 1033535497
Radiation Oncology
-
dba UCLA Rad-Onc Group Practice
- Radiation Oncology Physician
- Los Angeles, CA
- NPI 1730143454
-
dba Brigham and Women's / Sturdy Memorial Radiation Oncology Center
- Radiation Oncology Clinic/Center
- Mansfield, MA
- NPI 1104978519
-
- Dermatology Physician
- Boston, MA
- NPI 1801874573
-
- General Acute Care Hospital
- Boston, MA
- NPI 1023049236
-
dba Bay Area Hospital
- General Acute Care Hospital
- Coos Bay, OR
- NPI 1225016561
-
- Radiation Oncology Physician
- Lompoc, CA
- NPI 1922038173
-
dba Salinas Radiation Oncology Medical Center, Inc.
- Radiation Oncology Physician
- Salinas, CA
- NPI 1699707885
-
- Home Health Agency
- North Bend, OR
- NPI 1215018197
-
- Radiation Oncology Physician
- Ventura, CA
- NPI 1922038009
-
- Internal Medicine Physician
- Los Angeles, CA
- NPI 1043427248
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Northridge Hospital Medical Center
- General Acute Care Hospital
- Northridge, CA
- NPI 1417089350
-
dba Santa MonicaUCLAMC and Orthopedic Hospital
- General Acute Care Hospital
- Santa Monica, CA
- NPI 1427055839
-
dba Ronald Reagan UCLA Medical Center
- General Acute Care Hospital
- Los Angeles, CA
- NPI 1902803315
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1363564800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1791072000000",
"number": "1225370232",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "75 FRANCIS ST",
"city": "BOSTON",
"state": "MA",
"postal_code": "021156110",
"telephone_number": "617-732-6310"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "75 FRANCIS ST",
"city": "BOSTON",
"state": "MA",
"postal_code": "021156106",
"telephone_number": "617-732-5500"
}
],
"practiceLocations": [
{
"address_1": "55 Fruit St",
"address_purpose": "LOCATION",
"city": "Boston",
"state": "MA",
"postal_code": "021142696",
"country_code": "US",
"telephone_number": "617-726-8650",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LAU",
"first_name": "STEVEN",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2013-03-18",
"last_updated": "2026-10-04",
"certification_date": "2026-10-04",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0001X",
"taxonomy_group": "",
"desc": "Radiology, Radiation Oncology",
"state": "CA",
"license": "A154145",
"primary": true
},
{
"code": "2085R0001X",
"taxonomy_group": "",
"desc": "Radiology, Radiation Oncology",
"state": "MA",
"license": "1026034",
"primary": false
}
],
"identifiers": [],
"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 Oct 4, 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.