Constance Anne Klein, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

991053 Issued in CO

Practice address

8959 E 40TH Ave
Denver, CO 80238-5026

Phone

(720) 848-0000

NPI assigned

Nov 28, 2006

Last updated

Aug 13, 2026By the provider in NPPES

Sex

Female

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 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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Aurora Comprehensive Community Mental Health Center, Inc

  dba Aurora Community Mental Health Inc

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Aurora, CO
  • NPI 1134149057
  Medicare reassignment NPD
• Tree of Life Psychotherapy LLC

  • Adult Mental Health Clinic/Center
  • Denver, CO
  • NPI 1649536665
  NPD (past) Authorized official
• Aurora Comprehensive Community Mental Health Center, Inc

  dba Aurora Mental Health & Recovery

  • Community/Behavioral Health Agency
  • Aurora, CO
  • NPI 1407699473
  NPD
• Aurora Comprehensive Community Mental Health Center, Inc

  dba Aurora Mental Health Center, Inc

  • Community/Behavioral Health Agency
  • Aurora, CO
  • NPI 1578961900
  NPD
• Aurora Comprehensive Community Mental Health Center

  dba Aurora Mental Health Center

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Aurora, CO
  • NPI 1720685423
  NPD (past)

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

{
    "created_epoch": "1164672000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786579200000",
    "number": "1699842641",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 110429",
            "city": "AURORA",
            "state": "CO",
            "postal_code": "800420429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8959 E 40TH AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802385026",
            "telephone_number": "720-848-0000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1290 Chambers Rd",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800117117",
            "country_code": "US",
            "telephone_number": "303-617-2300",
            "fax_number": "303-617-2344",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KLEIN",
        "first_name": "CONSTANCE",
        "middle_name": "ANNE",
        "name_prefix": "Ms.",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-28",
        "last_updated": "2026-08-13",
        "certification_date": "2026-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "CO",
            "license": "991053",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CO",
            "license": "991053",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Bryn Kleffman
• Klein Physical Therapy, PC
• Alan Steven Klein, M.D., FAAP
• Casey Klein, D.D.S.
• Catherine Elizabeth Klein, MD
• Evan Klein, MA LPC
• Gavin Duane Klein
• Jordan Klein, M.D.
• Joshua Klein, DDS
• Katherine Elizabeth Klein, MD

• Clinical Social Worker in Denver, CO
• Providers in Denver, 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 Aug 13, 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.