Sonia Ralli Grewal, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A95350 Issued in CA

Practice address

520 Superior Ave Ste 390
Newport Beach, CA 92663-3668

Phone

(949) 548-3177

Fax

(949) 548-3412

NPI assigned

Aug 8, 2007

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Dr. Sonia Ralli Former name

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

Specialty

Endocrinology

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Naqvi and Naqvi MD IncGroup PAC ID 7618014119, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Naqvi and Naqvi MD Inc

  • Specialist
  • Newport Beach, CA
  • NPI 1740424118
  Medicare reassignment Care Compare group NPD
• Ralli and Grewal Apc

  • Endocrinology, Diabetes & Metabolism Physician
  • Newport Beach, CA
  • NPI 1659727865
  Medicare reassignment Authorized official
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  NPD (past)

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": "1186531200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773360000000",
    "number": "1154512663",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "520 SUPERIOR AVE STE 390",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926633668",
            "telephone_number": "949-548-3177",
            "fax_number": "949-548-3412"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "520 SUPERIOR AVE STE 390",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926633668",
            "telephone_number": "949-548-3177",
            "fax_number": "949-548-3412"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREWAL",
        "first_name": "SONIA",
        "middle_name": "RALLI",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-08-08",
        "last_updated": "2026-03-13",
        "certification_date": "2026-03-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A95350",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "SONIA",
            "last_name": "RALLI",
            "prefix": "DR.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Gregory a Robertson MD a Professional Medical Corporation
• Gregory Alan. Bartlow, M.D., Inc.
• Gregory C Di Rocco, M.D., Inc.
• Madeline Gregory
• Julia Rahmann Grepo, PA-C
• Tiffany Marie Gribble
• Chelsea Anne Griffin-Hilbert, LCSW
• Cerina Griffin, M.S., M.F.T
• James Griffin
• Ashley Elizabeth Griffith

• Internal Medicine Physician in Newport Beach, CA
• Providers in Newport Beach, 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 Mar 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.