Individual provider Active NPI

Nathan Klein, CRNA

  • Certified Registered Nurse Anesthetist
  • Pueblo, CO
National Provider Identifier
1831785831
Registry record updated Jan 26, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
131941 Issued in OH
Practice address
400 W 16TH St
Pueblo, CO 81003-2781
Phone
(719) 584-7305
NPI assigned
Dec 15, 2020
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 26, 2021

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 AnesthetistGroup: 193400000X SINGLE SPECIALTY GROUP 367500000X 131941 OH Primary

Addresses

Primary practice location

400 W 16TH St
Pueblo, CO 81003-2781

Mailing address

217 Jackson St
Doylestown, OH 44230-1110
Phone (306) 976-4403

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210223001002 CO Practitioner - Certified Registered Nurse Anesthetist (Crna) 1658786793 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Hospitalist Medicine Physicians of Colorado - Denver PCGroup PAC ID 3577073402, 90 clinicians
Poudre Valley Medical Group LLCGroup PAC ID 9638208549, 2,425 clinicians

Practice addresses (Care Compare)

1375 E 19TH Ave
Saint Joseph Hospital
Denver, CO 80218-1114
Phone (303) 812-6400

400 W 16TH St
Pueblo, CO 81003-2745
Phone (719) 584-4921

4404 Barranca LN
Unit 101
Castle Rock, CO 80104-7419
Phone (720) 733-5260

Hospital & facility affiliations

  • Saint Joseph Hospital Hospital, Denver, CO, CCN 060028
  • Parkview Medical Center, Inc Hospital, Pueblo, CO, CCN 060020

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
131941OHMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Hospitalist Medicine Physicians of Colorado - Denver PC Single Specialty CurrentSince Feb 25, 2026 Accepting new patients
Poudre Valley Medical Group, LLC Single Specialty CurrentSince Jun 1, 2025 Accepting new patients
Poudre Valley Medical Group, LLC Single Specialty CurrentSince Jun 1, 2025 Accepting new patients

Locations

4404 Barranca Ln
Castle Rock, CO 80104
Phone (720) 733-5260

1375 E 19th Ave
Denver, CO 80218
Phone (303) 812-2000

400 W 16th St
Pueblo, CO 81003
Phone (719) 584-4000

408 N Main St
Fl 2
Pueblo, CO 81003
Phone (719) 584-4000

1619 N Greenwood St
Ste 106
Pueblo, CO 81003
Phone (719) 595-7760

Organizations & group practices 3

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 11

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": "1607990400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1611619200000",
    "number": "1831785831",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "217 JACKSON ST",
            "city": "DOYLESTOWN",
            "state": "OH",
            "postal_code": "442301110",
            "telephone_number": "306-976-4403"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 W 16TH ST",
            "city": "PUEBLO",
            "state": "CO",
            "postal_code": "810032781",
            "telephone_number": "719-584-7305"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLEIN",
        "first_name": "NATHAN",
        "credential": "CRNA",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-12-15",
        "last_updated": "2021-01-26",
        "certification_date": "2021-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "OH",
            "license": "131941",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Pueblo, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 26, 2021; 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.