Active NPI
Patrick Jason Mulroy, D.O.
- Internal Medicine Physician
- Orange, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 20A13247
- Practice address
- 101 The City Dr S
Orange, CA 92868-3201 - Phone
- (714) 456-8888
- NPI assigned
- Jun 21, 2012
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 20A13247 | CA | Primary |
Addresses
Primary practice location
101 The City Dr S
Orange, CA 92868-3201
Mailing address
101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-8888
Other practice location 1
3851 Katella Ave
Suite 155
Los Alamitos, CA 90720-2600
Phone (562) 344-1350
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
- Internal Medicine
- Education
- Other, 2012
- Medicare assignment
- May accept Medicare assignment
- Group practices
Practice addresses (Care Compare)
101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-7890
2801 Atlantic Ave
Long Beach, CA 90806-1701
Phone (562) 542-3300
3700 S St
Lakewood, CA 90712-1419
Phone (562) 542-3300
3751 Katella Ave
Los Alamitos, CA 90720-3113
Phone (562) 542-3300
Hospital & facility affiliations
- Prime Nursing Services
- Uci Health-Orange
- Uci Health-Lakewood
- Memorialcare Long Beach Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 78.61 of 100
- Quality
- 58.7
- Improvement activities
- 40
- Cost
- 75.08
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 20A13247 | CA | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Pih Health Physicians | Current | Accepting new patients | |
| Pih Health Physicians | Current | Accepting new patients | |
| Pioneer Medical Group Inc. | Current | Accepting new patients | |
| Patrick Jason Mulroy | Current | Accepting new patients | |
| Pih Health Physicians | Current | Accepting new patients |
Locations
17777 Center Court Dr N
Ste 400
Cerritos, CA 90703
Phone (562) 229-9452
12675 La Mirada Blvd
Ste 201401
La Mirada, CA 90638
Phone (562) 903-7339
3700 South St
Lakewood, CA 90712
Phone (562) 424-2900
2220 Clark Ave
Long Beach, CA 90815
Phone (562) 597-4181
3851 Katella Ave
Ste 155
Los Alamitos, CA 90720
Phone (562) 344-1350
3751 Katella Ave
Los Alamitos, CA 90720
Phone (562) 799-3160
Organizations & group practices 6
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.
-
- Hospitalist Physician
- Orange, CA
- NPI 1154479723
-
- Family Medicine Physician
- Whittier, CA
- NPI 1609233899
-
- Multi-Specialty Clinic/Center
- Bellflower, CA
- NPI 1548303589
-
- Hospitalist Physician
- Los Alamitos, CA
- NPI 1306657481
-
- Family Medicine Physician
- Whittier, CA
- NPI 1427405737
-
- Anesthesiology Physician
- Downey, CA
- NPI 1447931506
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Long Beach, CA
- NPI 1962442012
-
- Home Health Agency
- Los Angeles, CA
- NPI 1962409813
-
- General Acute Care Hospital
- Lakewood, CA
- NPI 1184655581
-
- General Acute Care Hospital
- Orange, CA
- NPI 1689608150
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1340236800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1781222400000",
"number": "1619230810",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "101 THE CITY DR S",
"city": "ORANGE",
"state": "CA",
"postal_code": "928683201",
"telephone_number": "714-456-8888"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "101 THE CITY DR S",
"city": "ORANGE",
"state": "CA",
"postal_code": "928683201",
"telephone_number": "714-456-8888"
}
],
"practiceLocations": [
{
"address_1": "3851 KATELLA AVE",
"address_2": "SUITE 155",
"address_purpose": "LOCATION",
"city": "LOS ALAMITOS",
"state": "CA",
"postal_code": "907202600",
"country_code": "US",
"telephone_number": "562-344-1350",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MULROY",
"first_name": "PATRICK",
"middle_name": "JASON",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2012-06-21",
"last_updated": "2026-06-12",
"certification_date": "2026-06-12",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "CA",
"license": "20A13247",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Orange, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 12, 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.