Individual provider Active NPI

Patrick Jason Mulroy, D.O.

  • Internal Medicine Physician
  • Orange, CA
National Provider Identifier
1619230810
Registry record updated Jun 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
20A13247 Issued in CA
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

Updated by the provider on Jun 12, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20150915003295 CA Practitioner - Internal MedicinePractitioner - Hospitalist 0446567903 Reassigns benefits to 3 organizations
Practice locations: Lakewood, CA; Long Beach, CA; Los Alamitos, CA

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Hospitalist
Education
Other, 2012
Medicare assignment
May accept Medicare assignment
Group practices
The Regents of the University of California-IrvineGroup PAC ID 3971609611, 116 clinicians

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 Home health agency, Los Angeles, CA, CCN 057497
  • Uci Health-Orange Hospital, Orange, CA, CCN 050348
  • Uci Health-Lakewood Hospital, Lakewood, CA, CCN 050581
  • Memorialcare Long Beach Medical Center Hospital, Long Beach, CA, CCN 050485

Merit-based Incentive Payment System (MIPS)

Final score
78.61 of 100Reported as group
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

LicenseStateTypeSpecialty
20A13247CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Pih Health Physicians CurrentSince Jul 1, 2021 Accepting new patients
Pih Health Physicians Current Accepting new patients
Pioneer Medical Group Inc. CurrentSince Aug 3, 2015 Accepting new patients
Patrick Jason Mulroy CurrentSince Mar 25, 2025 Accepting new patients
Pih Health Physicians CurrentSince Jul 1, 2021 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.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

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

Verify at the official NPI Registry.