Levi Benjamin Williamson, PA-C

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

License

57670 Issued in CA

Practice address

22431 Antonio Pkwy # B160-613
Rancho Santa Margarita, CA 92688-2804

Phone

(855) 727-2251

Fax

(855) 727-2251

NPI assigned

Jan 6, 2019

Last updated

May 28, 2025By the provider in NPPES

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

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

Group practices

Arch Health Partners IncGroup PAC ID 9931239027, 141 clinicians

Physician Assistant Specialists-California IncGroup PAC ID 1355791997, 9 clinicians

Eisenhower Medical CenterGroup PAC ID 5890689657, 462 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Palomar Health Downtown Campus Hospital, Escondido, CA, CCN 050115
• Palomar Medical Center Poway Hospital, Poway, CA, CCN 050636

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: levi.williamson.p1@direct.arch.nextgenshare.com
• Direct secure messaging: lwilliamson1198949@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.

• Eisenhower Medical Center

  dba Eisenhower Health

  • General Acute Care Hospital
  • Rancho Mirage, CA
  • NPI 1013981554
  Medicare reassignment Care Compare group NPD (past)
• Arch Health Partners, Inc

  dba Palomar Health Medical Group

  • Family Medicine Physician
  • Poway, CA
  • NPI 1649500141
  Medicare reassignment Care Compare group
• Physician Assistant Specialists-California Inc

  • Surgical Physician Assistant
  • Rancho Santa Margarita, CA
  • NPI 1245017185
  Medicare reassignment Care Compare group
• Arch Health Partners

  dba Palomar Health Medical Group

  • Family Medicine Physician
  • San Diego, CA
  • NPI 1568870657
  NPD
• Eisenhower Medical Center

  dba Eisenhower

  • General Acute Care Hospital
  • Cathedral City, CA
  • NPI 1407007537
  NPD
• Eisenhower Medical Center

  dba Eisenhower Health

  • General Acute Care Hospital
  • Cathedral City, CA
  • NPI 1629384615
  NPD
• Healthcare Service Partners, Inc.

  • Surgical Physician Assistant
  • Rancho Santa Margarita, CA
  • NPI 1356889265
  NPD (past)

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

• Palomar Health

  dba Palomar Medical Center Poway

  • General Acute Care Hospital
  • Poway, CA
  • NPI 1376513754
  Care Compare affiliation
• Palomar Health

  dba Palomar Medical Center Escondido

  • General Acute Care Hospital
  • Escondido, CA
  • NPI 1457321317
  Care Compare affiliation

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

{
    "created_epoch": "1546732800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748390400000",
    "number": "1932672615",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22431 ANTONIO PKWY # B160-613",
            "city": "RANCHO SANTA MARGARITA",
            "state": "CA",
            "postal_code": "926882804",
            "telephone_number": "855-727-2251",
            "fax_number": "855-727-2251"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22431 ANTONIO PKWY # B160-613",
            "city": "RANCHO SANTA MARGARITA",
            "state": "CA",
            "postal_code": "926882804",
            "telephone_number": "855-727-2251",
            "fax_number": "855-727-2251"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "LEVI",
        "middle_name": "BENJAMIN",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-01-06",
        "last_updated": "2025-05-28",
        "certification_date": "2025-05-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "57670",
            "primary": false
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "57670",
            "primary": true
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "CA",
            "license": "57670",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael Weiss, D.O.
• Danielle White, PPS
• Ashlyn Williams
• Gary Lee Williams
• Juliet Williams, CRNA
• Rebecca Wingen
• Barbara Witowska, MS PAC
• Renae Witt, DPM
• Wolfram Dental Corporation
• Woman's Recovery Center (Sunsets Recovery Center)

• Medical Physician Assistant in Rancho Santa Margarita, CA
• Providers in Rancho Santa Margarita, CA by specialty
• Medical Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 28, 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.