Alton William Skaggs, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

A184202 Issued in CA

Practice address

200 W Arbor Dr
San Diego, CA 92103-9000

Phone

(800) 926-8273

Fax

(888) 539-8781

NPI assigned

Jan 28, 2018

Last updated

Jul 2, 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 2

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

Diagnostic Radiology

Education

University of California, Davis School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the University of CaliforniaGroup PAC ID 3577476761, 2,047 clinicians

Simonmed Imaging Florida LLCGroup PAC ID 6608036108, 302 clinicians

Health Diagnostics of California a Professional CorporationGroup PAC ID 4284621525, 176 clinicians

Smi Imaging LLCGroup PAC ID 3476696220, 380 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• UC San Diego Health Hillcrest - Hillcrest Med Ctr Hospital, San Diego, CA, CCN 050025
• El Centro Regional Medical Center Hospital, El Centro, CA, CCN 050045
• Sharp Coronado Hospital and Hlthcr Ctr Hospital, Coronado, CA, CCN 050234

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Optimum HealthCare HMO Network
• Freedom Health HMO Network

Interoperability endpoints

• Direct secure messaging: askaggs375489@scrippshlth.medalliesdirect.net

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.

• Health Diagnostics of California a Professional Corporation

  dba Simonmed Imaging

  • Diagnostic Radiology Physician
  • Mountain View, CA
  • NPI 1104321959
  Medicare reassignment Care Compare group NPD
• Regents of the University of California

  • Diagnostic Radiology Physician
  • San Diego, CA
  • NPI 1558463927
  Medicare reassignment Care Compare group NPD
• Simonmed Imaging Florida LLC

  dba Simonmed Imaging Tampa

  • Diagnostic Radiology Physician
  • Tampa, FL
  • NPI 1477830818

  CA

  Medicare reassignment Care Compare group NPD
• Smi Imaging, LLC

  dba Simonmed Imaging

  • Diagnostic Radiology Physician
  • Scottsdale, AZ
  • NPI 1972004489

  CA

  Medicare reassignment Care Compare group NPD
• Seven Star Hospital Associates Inc.

  dba Seven Star Radiology

  • Diagnostic Radiology Physician
  • Hemet, CA
  • NPI 1043813140
  Medicare reassignment
• Scripps Health

  dba Scripps Hospital Medical Services

  • General Acute Care Hospital
  • San Diego, CA
  • NPI 1487928891
  NPD
• Cher LLC

  dba Health Images at Fort Collins

  • Diagnostic Radiology Physician
  • Fort Collins, CO
  • NPI 1346855905
  NPD
• Cher LLC

  dba Health Images at Longmont

  • Diagnostic Radiology Physician
  • Longmont, CO
  • NPI 1629527494
  NPD
• Cher LLC

  dba Health Images at Castle Rock

  • Diagnostic Radiology Physician
  • Castle Rock, CO
  • NPI 1700322260
  NPD
• Cher LLC

  dba Health Images Greeley

  • Diagnostic Radiology Physician
  • Greeley, CO
  • NPI 1801580147
  NPD
• Cher LLC

  dba Health Images at West Littleton

  • Diagnostic Radiology Physician
  • Littleton, CO
  • NPI 1811404965
  NPD
• Cher, LLC

  dba Health Images at South Denver

  • Diagnostic Radiology Physician
  • Parker, CO
  • NPI 1023091121
  NPD

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

• El Centro Regional Medical Center

  • General Acute Care Hospital
  • El Centro, CA
  • NPI 1861409823
  Care Compare affiliation
• Regents of the University of California

  dba UCSD Medical Center

  • General Acute Care Hospital
  • San Diego, CA
  • NPI 1184722779
  Care Compare affiliation
• Sharp Coronado Hospital and Healthcare Center

  dba Sharp Coronado Hospital

  • General Acute Care Hospital
  • Coronado, CA
  • NPI 1154304475
  Care Compare affiliation

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

{
    "created_epoch": "1517097600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751414400000",
    "number": "1922506633",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "FILE 57326",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900740001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 W ARBOR DR",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921039000",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4250 1st Ave",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "92103",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9400 Campus Point Dr",
            "address_purpose": "LOCATION",
            "city": "LA Jolla",
            "state": "CA",
            "postal_code": "920931350",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6655 Alvarado Rd",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "921205208",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "330 Lewis St",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "921032108",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9300 Campus Point Dr",
            "address_purpose": "LOCATION",
            "city": "LA Jolla",
            "state": "CA",
            "postal_code": "920371300",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "fax_number": "888-539-8781",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SKAGGS",
        "first_name": "ALTON",
        "middle_name": "WILLIAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-01-28",
        "last_updated": "2025-07-02",
        "certification_date": "2025-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "PTL3893",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A184202",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elizabeth Sizemore, LMFT
• Laura Elizabeth Sizemore
• Sizewise Rentals LLC
• SJC Behavioral Health
• David Sjollema
• Charles Stanley Skaggs III, IDC
• Stanley Dean Skaggs, MD
• Heather Leigh Lyons Skalak, DPT, PT
• Andrew J Skalsky, M.D.
• Kelly Dean Skanchy, M.D.

• Diagnostic Radiology Physician in San Diego, CA
• Providers in San Diego, CA by specialty
• Diagnostic Radiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 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.