Alyssa Fieseler, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

CSW.09925507 Issued in CO

Practice address

5911 Middlefield Rd Ste 100
Littleton, CO 80123-2893

Phone

(630) 624-1080

NPI assigned

Sep 26, 2019

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

Enrolled in CO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

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.

• Heart Centered Counseling, PC

  • Mental Health Counselor
  • Fort Collins, CO
  • NPI 1588038681

  Clinical

  Medicare reassignment NPD
• Heart Centered Counseling, PC

  • Mental Health Counselor
  • Denver, CO
  • NPI 1205476660

  Clinical

  NPD
• Heart Centered Counseling, PC

  • Mental Health Counselor
  • Colorado Springs, CO
  • NPI 1558158584

  Clinical

  NPD

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

{
    "created_epoch": "1569456000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772582400000",
    "number": "1457902835",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5941 MIDDLEFIELD RD STE 201",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801237937",
            "telephone_number": "970-310-3406"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5911 MIDDLEFIELD RD STE 100",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801232893",
            "telephone_number": "630-624-1080"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FIESELER",
        "first_name": "ALYSSA",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-09-26",
        "last_updated": "2026-03-04",
        "certification_date": "2026-03-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CO",
            "license": "CSW.09925507",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anton Ferguson, COLD LASER THERIPST
• Elizabeth Ferguson
• Jordan Ferguson, PTA
• Jennifer Fierberg, LCSW
• Nathan Fierheller
• Andy M Fine
• Daniel Eric Finger, PHARMD
• Heather Lynn Finlayson, PA-C
• Susie M Finley, PT
• Keith Firsch, PT, DPT

• Clinical Social Worker in Littleton, CO
• Providers in Littleton, CO by specialty
• Clinical Social Worker in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 4, 2026; 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.