Lisa Hertz, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

G59291 Issued in CA

Practice address

4772 Katella Ave
#200
Los Alamitos, CA 90720-2600

Phone

(562) 596-5552

Fax

(562) 596-5340

NPI assigned

Dec 4, 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

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

Gastroenterology

Education

Harvard Medical School, 1984

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Genesis Healthcare Partners PCGroup PAC ID 2163606807, 232 clinicians

Comprehensive Gi Care a Professional Medical Group IncGroup PAC ID 7810942000, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Uci Health-Orange Hospital, Orange, CA, CCN 050348
• Memorialcare Long Beach Medical Center Hospital, Long Beach, CA, CCN 050485

Merit-based Incentive Payment System (MIPS)

Final score

76.21 of 100Reported as group

Quality

62.87

Improvement activities

40

Cost

70.22

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: lisa.hertz@cgicare.eclinicaldirectplus.com
• FHIR API: https://fhir4.healow.com/fhir/r4/GFIEBA

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.

• Comprehensive Gi Care, a Professional Medical Group, Inc.

  • Gastroenterology Physician
  • Los Alamitos, CA
  • NPI 1952564965
  Medicare reassignment Care Compare group NPD Authorized official
• Genesis Healthcare Partners PC

  • Specialist
  • Encinitas, CA
  • NPI 1548567498
  Medicare reassignment Care Compare group NPD

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

• Long Beach Memorial Medical

  • General Acute Care Hospital
  • Long Beach, CA
  • NPI 1962442012
  Care Compare affiliation
• University of California Irvine

  dba University of California Irvine - Cac Urgent Care

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1518739309

  Hospital

  Care Compare affiliation
• University of California Irvine

  dba Uci Health

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1689608150
  Care Compare affiliation

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

{
    "created_epoch": "1165190400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1639237720",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4772 KATELLA AVE",
            "address_2": "#200",
            "city": "LOS ALAMITOS",
            "state": "CA",
            "postal_code": "907202600",
            "telephone_number": "562-596-5552",
            "fax_number": "562-596-5340"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4772 KATELLA AVE",
            "address_2": "#200",
            "city": "LOS ALAMITOS",
            "state": "CA",
            "postal_code": "907202600",
            "telephone_number": "562-596-5552",
            "fax_number": "562-596-5340"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HERTZ",
        "first_name": "LISA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-12-04",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "G59291",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ward James Henry III, D.C.
• Rhisie Hentges, LMFT
• Michael Hermansen, PA-C
• Kenya Hernandez
• Yasmin Herring, MD
• Hollis K. Hettig, M.S., MFT
• Gretchen Ann Hetzler, M.D..
• Hewitt Kinesis Chiropractic Inc.
• Jack C Hewitt, D.C.
• Tariq Iyad Hilal, D.O.

• Gastroenterology Physician in Los Alamitos, CA
• Providers in Los Alamitos, CA by specialty
• Gastroenterology Physician in California

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