Sierra Regadanz

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA61828 Issued in CA

Practice address

148 Adrienne CT
Roseville, CA 95747-5099

Phone

(916) 872-7169

NPI assigned

May 6, 2019

Last updated

Nov 21, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Sierra Arnott Former name

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

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: sarnott733030@hisp.ehr.sutterhealth.org

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.

• QHP a Professional Corporation

  • Health Service Clinic/Center
  • Santa Ana, CA
  • NPI 1053187187
  Medicare reassignment
• Quality Health Partners Imaging California a Professional Corporat

  • Mobile Mammography Clinic/Center
  • Santa Ana, CA
  • NPI 1619772696
  NPD (past)

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

{
    "created_epoch": "1557100800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763683200000",
    "number": "1871158832",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "148 ADRIENNE CT",
            "city": "ROSEVILLE",
            "state": "CA",
            "postal_code": "957475099"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "148 ADRIENNE CT",
            "city": "ROSEVILLE",
            "state": "CA",
            "postal_code": "957475099",
            "telephone_number": "916-872-7169"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "REGADANZ",
        "first_name": "SIERRA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2019-05-06",
        "last_updated": "2025-11-21",
        "certification_date": "2025-11-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA61828",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "SIERRA",
            "last_name": "ARNOTT",
            "credential": "PA",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Keby Reese, MSW
• Christine Reeves, ASW
• Reeves, D.D.S. and Lavalley, D.D.S., a Dental Corporation (Kids Care Dental & Orthodontics - West Roseville)
• Reeves, DDS and Lavalley, DDS, a Dental Corporation (Kids Care Dental & Orthodontics - Roseville)
• Debra Reformat
• Regency Eye Care, Inc.
• Regents of the University of California (UC Davis Medical Group)
• Rehabwise Physical Therapy, PC
• Reichardt & McHale Chiropractic Inc.
• Joshua Carl Reichardt, D.C.

• Physician Assistant in Roseville, CA
• Providers in Roseville, 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 21, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.