Active NPI
Erin Yim, M.D.
- Hospitalist Physician
- Los Angeles, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hospitalist Physician
- License
- A192378
- Practice address
- 757 Westwood PLZ Ste 7501
Los Angeles, CA 90095-8358 - Phone
- (310) 267-9643
- NPI assigned
- Apr 15, 2021
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | A192378 | CA | |
| Hospitalist Physician | 208M00000X | A192378 | CA | Primary |
Addresses
Primary practice location
757 Westwood PLZ Ste 7501
Los Angeles, CA 90095-8358
Mailing address
PO Box 512185
Los Angeles, CA 90051-0185
Other practice location 1
1200 N State Street Clinic Tower
Suite A7D
Los Angeles, CA 90033
Phone (323) 409-7556
Other practice location 2
1500 Duarte Rd
Duarte, CA 91010-3012
Phone (800) 826-4673
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | direct@cityofhope.direct-ci.com | Direct | CITY OF HOPE MEDICAL FOUNDATION |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- Loma Linda University School of Medicine, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1500 Duarte Rd
Duarte, CA 91010-3012
Phone (626) 256-4673
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 87.51 of 100
- Quality
- 79.37
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 73.65
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A192378 | CA | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Southern California Permanente Medical Group | Current | Accepting new patients | |
| City of Hope Medical Foundation | Current | Accepting new patients | |
| Southern California Permanente Medical Group | Current | Accepting new patients | |
| Southern California Permanente Medical Group | Current | Accepting new patients |
Locations
1500 Duarte Rd
Duarte, CA 91010
Phone (626) 359-8111
393 E Walnut St
Fl 3
Pasadena, CA 91188
Phone (626) 405-7914
1255 W Arrow Hwy
San Dimas, CA 91773
Phone (909) 394-2526
209 Fair Oaks Ave
South Pasadena, CA 91030
Phone (626) 359-8111
Interoperability endpoints
- direct@cityofhope.direct-ci.com
- eyim271041@cityofhope.direct-ci.com
Organizations & group practices 4
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.
-
dba City of Hope Duarte
- Hematology & Oncology Physician
- Duarte, CA
- NPI 1871886366
-
- Health Maintenance Organization
- Baldwin Park, CA
- NPI 1770515280
-
- Health Maintenance Organization
- Santa Clarita, CA
- NPI 1316409410
-
dba Target Clinic Medical Associates of Southern California
- Health Maintenance Organization
- Rosemead, CA
- NPI 1942787114
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Duarte, CA
- NPI 1750358297
-
dba Santa MonicaUCLAMC and Orthopedic Hospital
- General Acute Care Hospital
- Santa Monica, CA
- NPI 1427055839
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1618444800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1758153600000",
"number": "1396326062",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 512185",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900510185"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "757 WESTWOOD PLZ STE 7501",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900958358",
"telephone_number": "310-267-9643"
}
],
"practiceLocations": [
{
"address_1": "1200 N State Street Clinic Tower",
"address_2": "Suite A7D",
"address_purpose": "LOCATION",
"city": "Los Angeles",
"state": "CA",
"postal_code": "90033",
"country_code": "US",
"telephone_number": "323-409-7556",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1500 Duarte Rd",
"address_purpose": "LOCATION",
"city": "Duarte",
"state": "CA",
"postal_code": "910103012",
"country_code": "US",
"telephone_number": "800-826-4673",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "YIM",
"first_name": "ERIN",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-04-15",
"last_updated": "2025-09-18",
"certification_date": "2025-09-18",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CA",
"license": "A192378",
"primary": false
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "CA",
"license": "A192378",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "direct@cityofhope.direct-ci.com",
"affiliation": "Y",
"affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "1500 Duarte Rd",
"city": "Duarte",
"state": "CA",
"country_code": "US",
"postal_code": "910103012",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Los Angeles, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 2025; 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.