Keith L Martin, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

G30724 Issued in CA

Practice address

16671 Yorba Linda Blvd
Suite 200
Yorba Linda, CA 92886-2025

Phone

(714) 996-3700

Fax

(714) 961-7839

NPI assigned

Aug 9, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 2

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

GastroenterologyAlso: Internal Medicine

Education

University of Oklahoma College of Medicine, 1975

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the University of CaliforniaGroup PAC ID 5597663641, 61 clinicians

UC RegentsGroup PAC ID 7416869516, 316 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Uci Health-Orange Hospital, Orange, CA, CCN 050348

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: keith.martin.1@30912.direct.athenahealth.com

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.

• Regents of the University of California

  • Family Medicine Physician
  • Orange, CA
  • NPI 1679521850

  Gastroenterology

  Medicare reassignment Care Compare group NPD
• UC Regents

  • Infectious Disease Physician
  • Orange, CA
  • NPI 1760430847
  Medicare reassignment Care Compare group
• First Choice Physician Partners

  • Neurological Surgery Physician
  • Modesto, CA
  • NPI 1104183052
  Medicare reassignment NPD
• First Choice Physician Partners

  • Internal Medicine Physician
  • Modesto, CA
  • NPI 1912264862
  NPD
• First Choice Physician Partners

  • Ophthalmology Physician
  • El Monte, CA
  • NPI 1912732892
  NPD
• Regents of the University of California

  • Anatomic Pathology & Clinical Pathology Physician
  • Orange, CA
  • NPI 1174662555
  NPD
• UC Regents

  • Pulmonary Disease Physician
  • Orange, CA
  • NPI 1629026729
  NPD
• UC Regents

  • Gastroenterology Physician
  • Orange, CA
  • NPI 1902854078
  NPD
• Internal Medical Group

  • Gastroenterology Physician
  • Yorba Linda, CA
  • NPI 1164499737
  NPD (past)
• UC Regents

  • Internal Medicine Physician
  • Orange, CA
  • NPI 1205884392
  NPD (past)
• Uci Medical Group

  • Critical Access Hospital
  • Orange, CA
  • NPI 1538216668
  NPD (past)

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

• University of California Irvine

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

  Hospital

  Care Compare affiliation
• University of California Irvine

  • 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": "1155081600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746489600000",
    "number": "1649280546",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "16671 YORBA LINDA BLVD",
            "address_2": "SUITE 200",
            "city": "YORBA LINDA",
            "state": "CA",
            "postal_code": "928862025",
            "telephone_number": "714-996-3700",
            "fax_number": "714-961-7839"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16671 YORBA LINDA BLVD",
            "address_2": "SUITE 200",
            "city": "YORBA LINDA",
            "state": "CA",
            "postal_code": "928862025",
            "telephone_number": "714-996-3700",
            "fax_number": "714-961-7839"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARTIN",
        "first_name": "KEITH",
        "middle_name": "L",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-09",
        "last_updated": "2025-05-06",
        "certification_date": "2025-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "CA",
            "license": "G30724",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "G30724",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN",
            "identifier": "WG30724A",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "ZZZ82813Z",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• James Dean Marin, RD
• Mark a. Dougherty, D.D.S., Inc
• Mark Allen Physical Therapy, a Professional Corporation
• Lynn Francis Marran, OD
• Martin Stauber MD, a Medical Corporation
• Megan Martin, PHARM D
• Eduardo Manuel Mas, D.D.S.
• Matthew L Cilderman DDS Inc
• Lesli Ann Maul, LCSW
• Daniel May, M.D.

• Gastroenterology Physician in Yorba Linda, CA
• Providers in Yorba Linda, CA by specialty
• Gastroenterology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 6, 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.