Kelsie Mothersead

Primary specialty

Surgical Physician AssistantTaxonomy code 363AS0400X

Practice address

22 Corporate Plaza Dr
Newport Beach, CA 92660-7985

Phone

(949) 722-7038

Fax

(949) 630-4900

NPI assigned

May 8, 2023

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IN

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lakeshore Bone and Joint Institute II, LLCGroup PAC ID 0446512909, 8 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwest Health - Porter Hospital, Valparaiso, IN, CCN 150035
• Hoag Orthopedic Institute Hospital, Irvine, CA, CCN 050769

Merit-based Incentive Payment System (MIPS)

Final score

92.62 of 100Reported as group

Quality

100

Improvement activities

40

Cost

75.38

Medicare enrollment (NPD)

Enrolled

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.

• Lakeshore Bone & Joint Institute II, LLC

  • Orthopaedic Surgery of the Spine Physician
  • Chesterton, IN
  • NPI 1821326240
  Medicare reassignment Care Compare group

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

• Hoag Orthopedic Institute LLC

  • Special Hospital
  • Irvine, CA
  • NPI 1982927877
  Care Compare affiliation
• Porter Hospital LLC

  • General Acute Care Hospital
  • Valparaiso, IN
  • NPI 1215151154
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1683504000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782432000000",
    "number": "1508555210",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 CORPORATE PLAZA DR",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926607985",
            "telephone_number": "949-722-7038"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 CORPORATE PLAZA DR",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926607985",
            "telephone_number": "949-722-7038",
            "fax_number": "949-630-4900"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOTHERSEAD",
        "first_name": "KELSIE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-05-08",
        "last_updated": "2026-06-26",
        "certification_date": "2026-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Francine Mia Mosquera
• Moss Chiropractic & Nutrition Inc
• Serra Moss, D.C.
• Yasaman Mostajeran, PHD
• Seethal Motamarri, DO
• Bassam Moucharafieh, M.D.
• Alan E. Mouchawar, MD
• Marilyn T Mountain, LMFT
• Kristin Michelle Mountford, FNP-C
• Movement First

• Surgical Physician Assistant in Newport Beach, CA
• Providers in Newport Beach, CA by specialty
• Surgical Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 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.

Verify at the official NPI Registry.