Sleep Center of Littleton PC

Primary specialty

Sleep Medicine (Otolaryngology) PhysicianTaxonomy code 207YS0012X

Legal business name

SLEEP CENTER OF LITTLETON PC

Practice address

640 Plaza Dr Ste 360
Highlands Ranch, CO 80129-2508

Phone

(720) 387-8145

Fax

(303) 481-8619

NPI assigned

Jun 11, 2019

Organization subpart

Yes

Parent organization

SLEEP CENTER OF LITTLETON PCAs reported in NPPES

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

Authorized official

Name

Dr. Thomas R Froning, DDSNPI 1467450593

Title

Owner

Phone

(720) 387-8145

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CO2 enrollments

Enrollment records 2

Part of

Sleep Center of Littleton PC

Locations

Practitioners 5

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Cassaundra Braaten

  • Physician Assistant
  • Littleton, CO
  • NPI 1548844624
  Medicare reassignment Care Compare group NPD
• Edward Tracy Sall, MD,DDS

  • Otolaryngic Allergy Physician
  • Fayetteville, NY
  • NPI 1710961198

  CO

  Medicare reassignment Care Compare group NPD
• Thomas R Froning, DDS

  • General Practice Dentistry
  • Highlands Ranch, CO
  • NPI 1467450593

  Durable Medical Equipment & Medical Supplies

  NPD Authorized official
• Steven J Krendl, D.D.S.

  • Dentist
  • Littleton, CO
  • NPI 1568661502
  NPD (past)
• Teri Novosel, PA-C

  • Physician Assistant
  • Highlands Ranch, CO
  • NPI 1770133761
  NPD (past)

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

{
    "created_epoch": "1560211200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1764633600000",
    "number": "1306405543",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "640 PLAZA DR STE 360",
            "city": "HIGHLANDS RANCH",
            "state": "CO",
            "postal_code": "801292508",
            "telephone_number": "720-387-8145",
            "fax_number": "303-481-8619"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "640 PLAZA DR STE 360",
            "city": "HIGHLANDS RANCH",
            "state": "CO",
            "postal_code": "801292508",
            "telephone_number": "720-387-8145",
            "fax_number": "303-481-8619"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SLEEP CENTER OF LITTLETON PC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "SLEEP CENTER OF LITTLETON PC",
        "enumeration_date": "2019-06-11",
        "last_updated": "2025-12-02",
        "certification_date": "2025-12-02",
        "status": "A",
        "authorized_official_last_name": "FRONING",
        "authorized_official_first_name": "THOMAS",
        "authorized_official_middle_name": "R",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "720-387-8145",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "DDS"
    },
    "taxonomies": [
        {
            "code": "207YS0012X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Otolaryngology, Sleep Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "332B00000X",
            "taxonomy_group": "",
            "desc": "Durable Medical Equipment & Medical Supplies",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vanessa Guo Siu
• Katie Sixta, RN
• Jennifer Elizabeth Skalla, FNP-C
• Patricia Jean Skiles, PHARMD
• Skimfood LLC (SkimWellness)
• Sleep Treatment Solutions LLC
• Sleep Well Colorado
• John Wallace Smiley, MD
• Alison Smith
• Doug Patrick Smith, PH.D.

• Otolaryngology Physician in Highlands Ranch, CO
• Providers in Highlands Ranch, CO by specialty
• Otolaryngology Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.