Mary Lee Grewal, D.O.

Primary specialty

Vascular Surgery PhysicianTaxonomy code 2086S0129X

License

19531 Issued in CA

Practice address

11201 Benton St
Loma Linda, CA 92357-3504

Phone

(098) 257-0849

NPI assigned

Mar 2, 2015

Last updated

Jul 17, 2026By the provider in NPPES

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

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

88.87 of 100Reported as group

Quality

72.13

Promoting interoperability

80

Improvement activities

40

Cost

77.36

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mlee72878@direct.llu.edu

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Faculty Physicians and Surgeons of Llusm

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Apple Valley, CA
  • NPI 1205009917
  Medicare reassignment NPD
• Faculty Physicians and Surgeons of Llusm

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Upland, CA
  • NPI 1083863914
  NPD
• Faculty Physicians and Surgeons of Llusm

  • Family Medicine Physician
  • Moreno Valley, CA
  • NPI 1558788331
  NPD

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

{
    "created_epoch": "1425254400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784246400000",
    "number": "1821480732",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11201 BENTON ST",
            "city": "LOMA LINDA",
            "state": "CA",
            "postal_code": "923571000",
            "telephone_number": "909-825-7084",
            "fax_number": "909-777-3209"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11201 BENTON ST",
            "city": "LOMA LINDA",
            "state": "CA",
            "postal_code": "923573504",
            "telephone_number": "098-257-0849"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREWAL",
        "first_name": "MARY",
        "middle_name": "LEE",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-03-02",
        "last_updated": "2026-07-17",
        "certification_date": "2026-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "CA",
            "license": "19531",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephanie Gregorius
• Wendy Christina Gregorius, DDS
• David Greis
• Chand Grewal, DO
• Chandanjeet Kaur Grewal, MD
• Navraj S Grewal, MD
• Kyle Grgich
• Rita Gail Gribbon, R.D.
• John Anthony Griffin, M.D.
• Kimberly Marie Griffin, AGACNP-BC

• Vascular Surgery Physician in Loma Linda, CA
• Providers in Loma Linda, CA by specialty
• Vascular Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 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.