Lawrence S Barnett, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

G8833 Issued in CA

Practice address

280 S Main St
Ste 200
Orange, CA 92868-3852

Phone

(714) 634-4567

Fax

(714) 634-4569

NPI assigned

Oct 4, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Merit-based Incentive Payment System (MIPS)

Final score

75.34 of 100Reported as group

Quality

48.62

Promoting interoperability

94

Improvement activities

40

Cost

74.18

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: lbarnett@direct.osiortho.nextgenshare.com

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 Specialty Institute Medical Group of Orange County

  • Orthopaedic Surgery Physician
  • Orange, CA
  • NPI 1336228832
  Medicare reassignment NPD

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

{
    "created_epoch": "1128384000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1386631406",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 905",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928566905"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "280 S MAIN ST",
            "address_2": "STE 200",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683852",
            "telephone_number": "714-634-4567",
            "fax_number": "714-634-4569"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BARNETT",
        "first_name": "LAWRENCE",
        "middle_name": "S",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CA",
            "license": "G8833",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gregory B Barnes, M.D.
• Katherine Ann Barnes, PSY.D.
• Melanie Barnes
• Phyllis Julie Barnes, MA
• Cassandra R Barnett
• Lindsey April Barnett
• Steven L Barnett, MD
• Mary Ashley Barocio
• Dicran B Baron, MD
• Vanessa Estrada Baron, M.S.

• Orthopaedic Surgery Physician in Orange, CA
• Providers in Orange, CA by specialty
• Orthopaedic Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.