Individual provider Active NPI

Erik Nilsen, CRNA

  • Certified Registered Nurse Anesthetist
  • Colorado Springs, CO
National Provider Identifier
1417346248
Registry record updated Dec 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
APN.0991929-CRNA Issued in CO
Practice address
2485 E Pikes Peak Ave
Colorado Springs, CO 80909-6004
Phone
(719) 634-2001
NPI assigned
Jan 16, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 5, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X APN.0991929-CRNA CO Primary

Addresses

Primary practice location

2485 E Pikes Peak Ave
Colorado Springs, CO 80909-6004

Mailing address

7429 W David Dr
Littleton, CO 80128-5409

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20160114001573 CO Practitioner - Certified Registered Nurse Anesthetist (Crna) 0648598847 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
US Anesthesia Partners of Colorado IncGroup PAC ID 6002072055, 472 clinicians

Practice addresses (Care Compare)

8000 E Maplewood Ave
Suite 200
Greenwood Village, CO 80111-4727
Phone (303) 438-3999

Hospital & facility affiliations

  • AdventHealth Parker Hospital, Parker, CO, CCN 060114

Merit-based Incentive Payment System (MIPS)

Final score
84.8 of 100Reported as group
Quality
85
Improvement activities
40
Cost
76.83

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

Practice roles

OrganizationSpecialtyStatusNew patients
Guardian Anesthesia Services, Inc CurrentSince Jun 1, 2018 Accepting new patients
Southern Colorado Crna Associates Inc Nurse Anesthetist, Certified Registered CurrentSince Jan 1, 2022 Accepting new patients
Episk Anesthesia LLC Nurse Anesthetist, Certified Registered CurrentSince Dec 7, 2025 Accepting new patients

Locations

7353 Sisters Grv
Colorado Springs, CO 80923
Phone (719) 355-1001

2485 E Pikes Peak Ave
Colorado Springs, CO 80909
Phone (719) 328-0003

10101 Ridgegate Pkwy
Lone Tree, CO 80124
Phone (720) 225-1000

9395 Crown Crest Blvd
Parker, CO 80138
Phone (303) 269-4000

400 10th St E
Waconia, MN 55387

Organizations & group practices 4

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.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1421366400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764892800000",
    "number": "1417346248",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7429 W DAVID DR",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801285409"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2485 E PIKES PEAK AVE",
            "city": "COLORADO SPRINGS",
            "state": "CO",
            "postal_code": "809096004",
            "telephone_number": "719-634-2001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NILSEN",
        "first_name": "ERIK",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-01-16",
        "last_updated": "2025-12-05",
        "certification_date": "2025-12-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CO",
            "license": "APN.0991929-CRNA",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Colorado Springs, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 5, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.