Grace Lozinski, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A77966 Issued in CA

Practice address

4950 Barranca Pkwy Ste 207
Irvine, CA 92604-8648

Phone

(949) 262-9700

Fax

(949) 262-0700

NPI assigned

Jul 18, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA2 enrollments

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 2

Specialty

Internal Medicine

Education

New York Medical College, 2000

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224

Merit-based Incentive Payment System (MIPS)

Final score

54.93 of 100Reported as group

Quality

53.8

Improvement activities

0

Cost

64.92

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Grace Lozinski MD Inc

  • Internal Medicine Physician
  • Irvine, CA
  • NPI 1811865892
  Medicare reassignment NPD Authorized official
• Pacific Hospitalist Associates a Medical Corporation

  • Hospitalist Physician
  • Newport Beach, CA
  • NPI 1992750137

  Internal Medicine

  Medicare reassignment NPD
• Pacific Hospitalist Associates a Medical Corporation

  dba Pacific Hospitalist Associates

  • Skilled Nursing Facility
  • Newport Beach, CA
  • NPI 1306248240

  Internal Medicine

  NPD

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

• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  Care Compare affiliation

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

{
    "created_epoch": "1153180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780876800000",
    "number": "1659399582",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5000 BIRCH ST STE 4700",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926602187"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4950 BARRANCA PKWY STE 207",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926048648",
            "telephone_number": "949-262-9700",
            "fax_number": "949-262-0700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOZINSKI",
        "first_name": "GRACE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-18",
        "last_updated": "2026-06-08",
        "certification_date": "2026-06-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A77966",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "P00048999",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Tara Lowe, LMFT
• Loxley Ventures, LLC (Vital Care of Irvine)
• Abigail Briana Lozano-Flores
• Jamie Lozano
• Miriam Lozano
• Alex Chien Lu, MD
• Beatrice Lu, DDS
• Christian Co Lu, MD
• Gracie Christine Lu, LCSW
• Jessica Lu, O.D.

• Internal Medicine Physician in Irvine, CA
• Providers in Irvine, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 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.