Erica L Liesmaki, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

DR.0051594 Issued in CO

Practice address

4500 E 9TH Ave
Ste #320
Denver, CO 80220-3912

Phone

(303) 322-0212

Fax

(303) 322-0208

NPI assigned

Apr 4, 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

Other identifiers 1

Other names 1

• Erica L Gruner Former name

Medicare fee-for-service enrollment

Enrolled in CO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Medical College of Wisconsin, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Optumcare Colorado Medical Group LLCGroup PAC ID 2769706431, 187 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: eliesmaki119270@westdirect.optum.com

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.

• Optumcare Colorado Medical Group LLC

  • General Practice Physician
  • Colorado Springs, CO
  • NPI 1407252828
  Medicare reassignment Care Compare group NPD
• New West Physicians Inc

  • Internal Medicine Physician
  • Golden, CO
  • NPI 1427010859
  Medicare reassignment
• Optumcare Colorado Medical Group LLC

  • Rheumatology Physician
  • Boulder, CO
  • NPI 1922893478
  NPD
• Optumcare Colorado Medical Group, LLC

  • Pediatrics Physician
  • Colorado Springs, CO
  • NPI 1548891815
  NPD
• Optumcare Colorado Medical Group LLC

  • Family Medicine Physician
  • Colorado Springs, CO
  • NPI 1528190295
  NPD (past)

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

{
    "created_epoch": "1301875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776124800000",
    "number": "1013206622",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380",
            "telephone_number": "702-579-3203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 E 9TH AVE",
            "address_2": "STE #320",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802203912",
            "telephone_number": "303-322-0212",
            "fax_number": "303-322-0208"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIESMAKI",
        "first_name": "ERICA",
        "middle_name": "L",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-04-04",
        "last_updated": "2026-04-14",
        "certification_date": "2026-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CO",
            "license": "DR.0051594",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "46139745",
            "state": "CO"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ERICA",
            "last_name": "GRUNER",
            "middle_name": "L",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Alison M Lieberman, PSYD
• Daniel Liebowitz
• Anita Liebsch, NURSE PRACTITIONER
• Mary Kelly Liekis, FNP-C
• Mary Lien, PHARM.D
• Life Balance Practice, LLC
• Life Care Centers of America, Inc.
• Life Changing Agency
• Life Changing Care
• Life Choice Hospice of Colorado , LLC

• Family Medicine Physician in Denver, CO
• Providers in Denver, CO by specialty
• Family Medicine Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 14, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.