Leonid Izevich Groysman, MD

Primary specialty

Neurocritical Care PhysicianTaxonomy code 2084A2900X

License

A112765 Issued in CA

Practice address

17360 Brookhurst St.
Fountain Valley, CA 92708-3720

Phone

(877) 844-0012

Fax

(714) 665-4680

NPI assigned

Sep 19, 2008

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other names 1

• Leonid Groysman Former name

Electronic endpoints 1

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

NeurologyAlso: Critical Care (Intensivists)

Education

Other, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Memorialcare Medical FoundationGroup PAC ID 8729277314, 555 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603
• Memorialcare Orange Coast Medical Center Hospital, Fountain Valley, CA, CCN 050678

Merit-based Incentive Payment System (MIPS)

Final score

87.17 of 100Reported as group

Quality

81.15

Promoting interoperability

100

Improvement activities

40

Cost

71.64

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lgroysman857905@direct.memorialcare.org

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.

• Memorialcare Medical Foundation

  • Clinic/Center
  • Fountain Valley, CA
  • NPI 1205167350
  Medicare reassignment Care Compare group NPD
• Regents of the University of Claifornia Univ Neursciences

  • Neurology Physician
  • Orange, CA
  • NPI 1205884210
  Medicare reassignment NPD
• Silvan Medical Consulting, Inc

  • Psychiatry Physician
  • Long Beach, CA
  • NPI 1003599911
  Medicare reassignment NPD
• Sun Kim Medical Corporation

  • Urology Physician
  • Buena Park, CA
  • NPI 1730670407
  NPD (past)

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

• Orange Coast Memorial Medical Center

  • General Acute Care Hospital
  • Fountain Valley, CA
  • NPI 1497702575
  Care Compare affiliation
• Saddleback Memorial Medical Center

  • General Acute Care Hospital
  • Laguna Hills, CA
  • NPI 1275576381
  Care Compare affiliation

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

{
    "created_epoch": "1221782400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739491200000",
    "number": "1104076785",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17360 BROOKHURST ST.",
            "city": "FOUNTAIN VALLEY",
            "state": "CA",
            "postal_code": "927083720",
            "telephone_number": "877-844-0012",
            "fax_number": "714-665-4680"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17360 BROOKHURST ST.",
            "city": "FOUNTAIN VALLEY",
            "state": "CA",
            "postal_code": "927083720",
            "telephone_number": "877-844-0012",
            "fax_number": "714-665-4680"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GROYSMAN",
        "first_name": "LEONID",
        "middle_name": "IZEVICH",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-09-19",
        "last_updated": "2025-02-14",
        "certification_date": "2025-02-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "CA",
            "license": "A112765",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A112765",
            "primary": false
        },
        {
            "code": "2084A2900X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurocritical Care",
            "state": "CA",
            "license": "A112765",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://memorialcare.org/fhir/api/FHIR/R4/",
            "affiliation": "Y",
            "endpointDescription": "MemorialCare FHIR Endpoint",
            "affiliationName": "MemorialCare Medical Foundation",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "FHIR",
            "address_1": "17360 Brookhurst St",
            "city": "Fountain Valley",
            "state": "CA",
            "country_code": "US",
            "postal_code": "927083720",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "LEONID",
            "last_name": "GROYSMAN",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Gregory E. Le, DMD, Inc.
• Joseph Gregurich, M.D.
• Jill S. Grenda, M.A.
• Grohmann Chiropractic Corporation
• Natalie Grohmann, DC
• Ta Gu, L.A.C. PHD.
• Angelica Guadarrama
• Guardian Health Care Services
• Maria Guerra
• Kristina Guerrero, RBT

• Neurocritical Care Physician in Fountain Valley, CA
• Providers in Fountain Valley, CA by specialty
• Neurocritical Care Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 14, 2025; 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.