Individual provider Active NPI

Karen J Berg, CRNA

  • Certified Registered Nurse Anesthetist
  • Fort Collins, CO
National Provider Identifier
1740338391
Registry record updated Jul 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
APN.0992725-CRNA Issued in CO
Practice address
1236 E Elizabeth St Ste 1
Fort Collins, CO 80524-4000
Phone
(970) 224-2985
Fax
(970) 472-9381
NPI assigned
Jan 8, 2007
Last updated
Jul 21, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 21, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 735573 TX
Certified Registered Nurse Anesthetist 367500000X 125767 CO
Certified Registered Nurse Anesthetist 367500000X APN.0992725-CRNA CO Primary

Addresses

Primary practice location

1236 E Elizabeth St Ste 1
Fort Collins, CO 80524-4000

Mailing address

1236 E Elizabeth St Ste 1
Fort Collins, CO 80524-4000
Phone (970) 224-2985

Other practice location 1

1950 Mountain View Ave
Longmont, CO 80501-3129
Phone (303) 651-5300

Other identifiers 1

IdentifierTypeStateIssuer
1933772-01MedicaidTX

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, CO2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20080212000462 TX Practitioner - Certified Registered Nurse Anesthetist (Crna) 1052494192 Reassigns benefits to 1 organization
I20161207000413 CO Practitioner - Certified Registered Nurse Anesthetist (Crna) 1052494192 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Diehl Anesthesia IncGroup PAC ID 6800197575, 35 clinicians

Practice addresses (Care Compare)

9320 Grand Cordera Pkwy
Colorado Springs, CO 80924-7003
Phone (719) 258-1250

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
125767COMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Anesthesia Dynamics LLC Nurse Anesthetist, Certified Registered CurrentSince Jul 8, 2020 Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Jul 20, 2025 Accepting new patients
Catholic Health Initiatives Colorado Current Accepting new patients
Diehl Anesthesia Inc CurrentSince Aug 22, 2023 Accepting new patients
Austin Anesthesiology Group PLLC CurrentSince Apr 22, 2008 Accepting new patients
Arapahoe Gastroenterology Anesthesia Associates LLC Nurse Anesthetist, Certified Registered CurrentSince Jun 1, 2020 Accepting new patients
Austin Anesthesiology Group, PLLC Nurse Anesthetist, Certified Registered CurrentSince Apr 22, 2008 Accepting new patients
Northern Colorado Anesthesia Professionals PLLC CurrentSince May 1, 2017 Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Jul 20, 2025 Accepting new patients
Complete Care Office Anesthesia LLC Past Accepting new patients
Anesthesia Consultants PC Past Accepting new patients
OB GYN Anesthesia PC Past Accepting new patients

Locations

14272 E Evans Ave
Aurora, CO 80014
Phone (303) 425-2800

13111 E Briarwood Ave
Ste 300
Centennial, CO 80112
Phone (303) 671-5533

9100 E Mineral Cir
Centennial, CO 80112
Phone (303) 561-5193

9320 Grand Cordera Pkwy
Colorado Springs, CO 80924
Phone (719) 258-1250

4700 Hale Pkwy
Ste 200
Denver, CO 80220
Phone (303) 758-1175

1236 E Elizabeth St
Ste 1
Fort Collins, CO 80524
Phone (970) 236-2628

11600 W 2nd Pl
Lakewood, CO 80228
Phone (720) 321-1010

7000 W Colfax Ave
Lakewood, CO 80214
Phone (303) 671-5553

1001 Southpark Dr
Littleton, CO 80120
Phone (303) 531-5724

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

1950 Mountain View Ave
Longmont, CO 80501
Phone (303) 651-5000

2500 Rocky Mountain Ave
Loveland, CO 80538
Phone (970) 297-6425

2555 E 13th St
Ste 220
Loveland, CO 80537
Phone (970) 669-5432

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

9397 Crown Crest Blvd
Parker, CO 80138
Phone (303) 840-1135

10001 Washington St
Thornton, CO 80229
Phone (303) 252-0083

41 State Highway 67
Woodland Park, CO 80863
Phone (719) 686-0551

919 E 32nd St
Austin, TX 78705
Phone (512) 343-2466

Interoperability endpoints

  • Direct secure messaging: karen.berg.p1@direct.inlandeyespecialists.nextgenshare.com

Organizations & group practices 12

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.

Hospital & facility affiliations 1

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": "1168214400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753056000000",
    "number": "1740338391",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1236 E ELIZABETH ST STE 1",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805244000",
            "telephone_number": "970-224-2985",
            "fax_number": "970-472-9381"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1236 E ELIZABETH ST STE 1",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805244000",
            "telephone_number": "970-224-2985",
            "fax_number": "970-472-9381"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1950 Mountain View Ave",
            "address_purpose": "LOCATION",
            "city": "Longmont",
            "state": "CO",
            "postal_code": "805013129",
            "country_code": "US",
            "telephone_number": "303-651-5300",
            "fax_number": "303-651-5305",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BERG",
        "first_name": "KAREN",
        "middle_name": "J",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-08",
        "last_updated": "2025-07-21",
        "certification_date": "2025-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "735573",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CO",
            "license": "125767",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CO",
            "license": "APN.0992725-CRNA",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1933772-01",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Fort Collins, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 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.