Active NPI
William T Durkin Jr., M.D.
- Emergency Medicine Physician
- San Diego, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- G57870
- Practice address
- 6655 Alvarado Rd
San Diego, CA 92120-5208 - Phone
- (858) 692-1864
- NPI assigned
- Nov 3, 2005
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | G57870 | CA | Primary |
| Emergency Medicine Physician | 207P00000X | 49623 | MA |
Addresses
Primary practice location
6655 Alvarado Rd
San Diego, CA 92120-5208
Mailing address
826 Calle Talentia
Escondido, CA 92025-7945
Phone (858) 692-1864
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA, VA, 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
- Emergency Medicine
- Education
- Georgetown University School of Medicine, 1980
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
20103 Lake Chabot Rd
Castro Valley, CA 94546-5305
Phone (510) 537-1234
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G57870 | CA | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Newburyport Emergency Physicians, PLLC | Emergency Medicine | Current | Accepting new patients |
| Temecula Valley Emergency Physicians, Inc | Emergency Medicine | Current | Accepting new patients |
| Sturdy Memorial Hospital Inc | Emergency Medicine | Current | Accepting new patients |
| Ridgecrest Regional Hospital | Current | Accepting new patients | |
| Alvarado Emergency Medical Associates, Inc. | Emergency Medicine | Current | Accepting new patients |
| Ridgecrest Regional Hospital | Emergency Medicine | Current | Accepting new patients |
| Solano Gateway Medical Group Inc | Emergency Medicine | Current | Accepting new patients |
| Lakes/National Emergency Physicians Inc | Emergency Medicine | Current | Accepting new patients |
| Emergency Coverage, LLC | Emergency Medicine | Current | Accepting new patients |
| Emergency Care Dynamics Inc | Emergency Medicine | Past | Accepting new patients |
| Central California Emergency Medicine Physicians | Emergency Medicine | Past | Accepting new patients |
| Saint Anne'S Hospital | Past | Accepting new patients | |
| Sturdy Health, Inc. | Past | Accepting new patients | |
| Lifespan Physician Group of Massachusetts Inc | Emergency Medicine | Past | Accepting new patients |
| Southern Solano Emergency Medical Group, Inc | Emergency Medicine | Past | Accepting new patients |
| VA-I Medical Services PC | Past | Accepting new patients | |
| Emergency Coverage Services, PC | Past | Accepting new patients | |
| Ehra Medical Services of Virginia, PC | Emergency Medicine | Past | Accepting new patients |
Locations
1111 N China Lake Blvd
Ridgecrest, CA 93555
Phone (760) 446-4571
1081 N China Lake Blvd
Ridgecrest, CA 93555
Phone (760) 446-0616
6655 Alvarado Rd
San Diego, CA 92120
Phone (619) 229-3130
225 N Jackson Ave
San Jose, CA 95116
Phone (408) 347-4051
31700 Temecula Pkwy
Temecula, CA 92592
Phone (951) 303-8939
575 Beech St
Holyoke, MA 01040
Phone (413) 534-2570
25 Highland Ave
Newburyport, MA 01950
Phone (978) 258-4734
211 Park St
South Attleboro, MA 02703
Phone (508) 222-5200
3636 High St
Portsmouth, VA 23707
Phone (757) 398-2200
7101 Jahnke Rd
Richmond, VA 23225
Phone (804) 323-1088
Organizations & group practices 22
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Emergency Medicine Physician
- Castro Valley, CA
- NPI 1891786240
-
- Emergency Medicine Physician
- San Diego, CA
- NPI 1285811992
-
- Critical Access Hospital
- Ridgecrest, CA
- NPI 1447253125
Emergency Medicine
-
- Emergency Medicine Physician
- Fairfield, CA
- NPI 1952344293
-
- Emergency Medicine Physician
- Temecula, CA
- NPI 1407281223
-
- Emergency Medicine Physician
- Holyoke, MA
- NPI 1114426772
-
- Emergency Medicine Physician
- Newburyport, MA
- NPI 1215724364
-
- General Acute Care Hospital
- Attleboro, MA
- NPI 1730106162
Emergency Medicine
-
- Emergency Medicine Physician
- Ukiah, CA
- NPI 1033103676
-
- Internal Medicine Physician
- Burlington, MA
- NPI 1538194980
-
- Emergency Medicine Physician
- Ayer, MA
- NPI 1780971275
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Castro Valley, CA
- NPI 1063812907
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1130976000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1772064000000",
"number": "1174514582",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "826 CALLE TALENTIA",
"city": "ESCONDIDO",
"state": "CA",
"postal_code": "920257945",
"telephone_number": "858-692-1864"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6655 ALVARADO RD",
"city": "SAN DIEGO",
"state": "CA",
"postal_code": "921205208",
"telephone_number": "858-692-1864"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DURKIN",
"first_name": "WILLIAM",
"middle_name": "T",
"name_prefix": "Dr.",
"name_suffix": "Jr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2005-11-03",
"last_updated": "2026-02-26",
"certification_date": "2026-02-26",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "CA",
"license": "G57870",
"primary": true
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "MA",
"license": "49623",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in San Diego, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 26, 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.