Active NPI
Ivy M. Johnson, PA-C
- Surgical Physician Assistant
- Irvine, CA
National Provider Identifier
1962553628
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgical Physician Assistant
- License
- PA 15987
- Practice address
- 113 Waterworks Way Ste 240
Irvine, CA 92618-3175 - Phone
- (949) 340-9622
- Fax
- (949) 528-3969
- NPI assigned
- Jan 16, 2007
- 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 |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | PA15987 | CA | |
| Surgical Physician Assistant | 363AS0400X | PA 15987 | CA | Primary |
Addresses
Primary practice location
113 Waterworks Way Ste 240
Irvine, CA 92618-3175
Mailing address
113 Waterworks Way Ste 240
Irvine, CA 92618-3175
Phone (949) 340-9622
Other names 1
- Ms. Ivy Melissa Murphy
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: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- University of Southern California Keck School of Medicine, 2001
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
113 Waterworks Way
Suite 240
Irvine, CA 92618-3175
Phone (949) 340-9622
Hospital & facility affiliations
- Providence St. Jude Medical Center
- Pih Health Hospital-Whittier
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PA15987 | CA | MD | Physician Assistant |
| PA 15987 | CA | MD | Surgical Physician Assistant |
| 10616 | MN | MD | Family Nurse Practitioner |
| 1294 | MN | MD | Certified Registered Nurse Anesthetist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| St Jude Hospital Inc | Past | Accepting new patients | |
| Spine and Pain Institute of Orange County, Inc. | Past | Accepting new patients |
Interoperability endpoints
- imurphy888477@oc.providencedirect.org
Organizations & group practices 3
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.
-
- Orthopaedic Surgery Physician
- Irvine, CA
- NPI 1689146946
-
- Orthopaedic Surgery Physician
- Irvine, CA
- NPI 1609145127
-
- General Acute Care Hospital
- Fullerton, CA
- NPI 1194926279
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Whittier, CA
- NPI 1043215379
-
- General Acute Care Hospital
- Fullerton, CA
- NPI 1194926279
-
- General Acute Care Hospital
- Brea, CA
- NPI 1891904942
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1168905600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1781654400000",
"number": "1962553628",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "113 WATERWORKS WAY STE 240",
"city": "IRVINE",
"state": "CA",
"postal_code": "926183175",
"telephone_number": "949-340-9622",
"fax_number": "949-528-3969"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "113 WATERWORKS WAY STE 240",
"city": "IRVINE",
"state": "CA",
"postal_code": "926183175",
"telephone_number": "949-340-9622",
"fax_number": "949-528-3969"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JOHNSON",
"first_name": "IVY",
"middle_name": "M.",
"name_prefix": "Ms.",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2007-01-16",
"last_updated": "2026-06-17",
"certification_date": "2026-06-17",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "CA",
"license": "PA15987",
"primary": false
},
{
"code": "363AS0400X",
"taxonomy_group": "",
"desc": "Physician Assistant, Surgical",
"state": "CA",
"license": "PA 15987",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "IVY",
"last_name": "MURPHY",
"middle_name": "MELISSA",
"prefix": "MS.",
"credential": "PA-C",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Irvine, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 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.