Individual provider Active NPI

Morgan Lorraine Hennessy, MD, PHD

  • Surgery Physician
  • Los Angeles, CA
National Provider Identifier
1174053318
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
A187629 Issued in CA
Practice address
8635 W 3Rd St Ste 795W
Los Angeles, CA 90048-6129
Phone
(310) 423-8350
Fax
(310) 423-8351
NPI assigned
Jun 19, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X A187629 CA Primary

Addresses

Primary practice location

8635 W 3Rd St Ste 795W
Los Angeles, CA 90048-6129

Mailing address

8635 W 3Rd St Ste 650W
Los Angeles, CA 90048-6101

Other practice location 1

8700 Beverly Blvd
West Hollywood, CA 90048-1804
Phone (310) 423-8350

Other practice location 2

4650 Lincoln Blvd
Marina Del Rey, CA 90292-6306
Phone (310) 823-8911

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
I20230905000260 CA Practitioner - General SurgeryPractitioner - Critical Care (Intensivists) 2062785249 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
General SurgeryAlso: Critical Care (Intensivists)
Education
Harvard Medical School, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Cedars-Sinai Medical Care FoundationGroup PAC ID 0941106645, 1,684 clinicians
Cedars-Sinai Medical CenterGroup PAC ID 0446169114, 788 clinicians

Practice addresses (Care Compare)

4650 Lincoln Blvd
Marina del Rey, CA 90292-6306
Phone (310) 823-8911

8700 Beverly Blvd
West Hollywood, CA 90048-1804
Phone (310) 423-5000

Hospital & facility affiliations

  • Cedars-Sinai Medical Center Hospital, Los Angeles, CA, CCN 050625
  • Cedar-Sinai Marina del Rey Hospital Hospital, Marina del Rey, CA, CCN 050740

Merit-based Incentive Payment System (MIPS)

Final score
93.23 of 100Reported as group
Quality
77.83
Promoting interoperability
98
Improvement activities
40
Cost
71.17

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Hernia repair (minimally invasive)1-10
Removal of tissue1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
A187629CAMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Cedars-Sinai Medical Center CurrentSince Aug 1, 2023 Accepting new patients
Cedars-Sinai Medical Center CurrentSince Aug 1, 2023 Accepting new patients
Cedars-Sinai Medical Care Foundation CurrentSince Aug 11, 2025 Accepting new patients

Locations

8635 W 3rd St
Ste 465W
Los Angeles, CA 90048
Phone (310) 423-0674

8635 W 3rd St
Ste 795W
Los Angeles, CA 90048
Phone (310) 423-8350

4140 W 190th St
Torrance, CA 90504
Phone (310) 967-1780

4650 Lincoln Blvd
Venice, CA 90292
Phone (310) 577-5505

8700 Beverly Blvd
West Hollywood, CA 90048
Phone (310) 385-3291

8635 W 3rd St
Ste 770
West Hollywood, CA 90048
Phone (310) 423-8350

Interoperability endpoints

  • Direct secure messaging: mhennessy451893@direct.cshs.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.

Hospital & facility affiliations 3

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": "1497830400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1174053318",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8635 W 3RD ST STE 650W",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900486101"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8635 W 3RD ST STE 795W",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900486129",
            "telephone_number": "310-423-8350",
            "fax_number": "310-423-8351"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8700 Beverly Blvd",
            "address_purpose": "LOCATION",
            "city": "West Hollywood",
            "state": "CA",
            "postal_code": "900481804",
            "country_code": "US",
            "telephone_number": "310-423-8350",
            "fax_number": "310-423-8351",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4650 Lincoln Blvd",
            "address_purpose": "LOCATION",
            "city": "Marina Del Rey",
            "state": "CA",
            "postal_code": "902926306",
            "country_code": "US",
            "telephone_number": "310-823-8911",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HENNESSY",
        "first_name": "MORGAN",
        "middle_name": "LORRAINE",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-06-19",
        "last_updated": "2025-09-11",
        "certification_date": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A187629",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

Verify at the official NPI Registry.