Riley Newcomb, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

1198 Pacific Coast Hwy
Seal Beach, CA 90740-6251

Phone

(562) 799-7071

NPI assigned

Jan 17, 2019

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Carbon Health Medical Group of California PCGroup PAC ID 9032340047, 335 clinicians

Healthcare Partners Affiliates Medical GroupGroup PAC ID 7315842002, 775 clinicians

Centers for Family Medicine GPGroup PAC ID 9931143799, 87 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: riley.newcomb.p33@direct.monarchhealthcare.nextgenshare.com
• Direct secure messaging: riley.newcomb.p7@direct.monarchhealthcare.nextgenshare.com
• Direct secure messaging: rnewcomb195326@westdirect.optum.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.

• Carbon Health Medical Group of California PC

  • Urgent Care Clinic/Center
  • Berkeley, CA
  • NPI 1417294232
  Medicare reassignment Care Compare group NPD
• Centers for Family Medicine GP

  • Family Medicine Physician
  • Los Alamitos, CA
  • NPI 1467598243
  Medicare reassignment Care Compare group
• Healthcare Partners Affiliates Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment Care Compare group
• Carbon Health Medical Group of California PC

  • Urgent Care Clinic/Center
  • Pasadena, CA
  • NPI 1255957205
  NPD
• Healthcare Partners Affiliates Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Carbon Health Primary Care of California PC

  • Multi-Specialty Clinic/Center
  • Berkeley, CA
  • NPI 1972057990
  NPD (past)
• Memorial Medical Group Inc

  • Durable Medical Equipment & Medical Supplies
  • Phoenix, AZ
  • NPI 1255523643
  NPD (past)

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

  • 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": "1547683200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763942400000",
    "number": "1184198616",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1198 PACIFIC COAST HWY",
            "city": "SEAL BEACH",
            "state": "CA",
            "postal_code": "907406251",
            "telephone_number": "562-799-7071"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NEWCOMB",
        "first_name": "RILEY",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-01-17",
        "last_updated": "2025-11-24",
        "certification_date": "2025-11-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Prakash Narain, MD
• Nathalie Maggio LMFT, a Marriage and Family Therapy Professional Cooperation
• Naval Hospital Camp Pendleton
• Scott Eugene Nelsen, O.D.
• Neurohealth Specialists, a Psychological Corporation
• Audrey L Newman, DR
• Christophe Ngo, LMFT
• Cathy Nguyen
• Charlie Nguyen
• Henry Nguyen

• Physician Assistant in Seal Beach, CA
• Providers in Seal Beach, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 24, 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.