Shannon Nissen, DDS, MS

Primary specialty

Orthodontics and Dentofacial Orthopedics DentistryTaxonomy code 1223X0400X

License

56349 Issued in CA

Practice address

26302 La Paz Rd Ste 202
Mission Viejo, CA 92691-5328

Phone

(949) 830-4101

NPI assigned

Jan 10, 2011

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

State licenses

Practice roles

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.

• HNC Orthodontic Group

  • Orthodontics and Dentofacial Orthopedics Dentistry
  • Mission Viejo, CA
  • NPI 1497059166
  NPD (past) Authorized official
• James D. Clark, DDS, Apc

  • Orthodontics and Dentofacial Orthopedics Dentistry
  • Mission Viejo, CA
  • NPI 1124240023
  NPD (past)

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

{
    "created_epoch": "1294617600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759190400000",
    "number": "1134423965",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26302 LA PAZ RD STE 202",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926915328",
            "telephone_number": "848-830-4101"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "26302 LA PAZ RD STE 202",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926915328",
            "telephone_number": "949-830-4101"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NISSEN",
        "first_name": "SHANNON",
        "name_prefix": "Dr.",
        "credential": "DDS, MS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-01-10",
        "last_updated": "2025-09-30",
        "certification_date": "2025-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223X0400X",
            "taxonomy_group": "",
            "desc": "Dentist, Orthodontics and Dentofacial Orthopedics",
            "state": "CA",
            "license": "56349",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melisa Nicholson, LCSW
• Elizabeth Ann Nieto, M.D.
• Ladan Nilforoushan, O.D.
• Arian Nilforushan
• Natalia Nisihura
• Jaclyn Marie Nobakht, NP
• Noel Chiropractic Inc.
• Jonathan Rudolph Noel, DC
• Joseph Zachary Nojan
• Sima Mah Nojomian, DDS

• Orthodontics and Dentofacial Orthopedics Dentistry in Mission Viejo, CA
• Providers in Mission Viejo, CA by specialty
• Orthodontics and Dentofacial Orthopedics Dentistry in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.