NPIMap

Organization Active NPI

Fielden Hanson Isaacs Miyada Robison Yeh LTD

Doing business as US Anesthesia Partners of Nevada

  • Anesthesiology Physician
  • Las Vegas, NV
National Provider Identifier
1699710749
Registry record updated Sep 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
Legal business name
FIELDEN HANSON ISAACS MIYADA ROBISON YEH LTD
Doing business as
US Anesthesia Partners of Nevada
Usap - Nevada
Practice address
7160 Rafael Rivera Way Ste 210
Las Vegas, NV 89113-5395
Phone
(702) 878-0070
Fax
(702) 805-0307
NPI assigned
Jun 20, 2006
Last updated
Sep 3, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 3, 2026

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

Authorized official

Name
Dr. Ryan Hafen, M.D.NPI 1851659213
Title
MD
Phone
(702) 878-0070

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X NU
Anesthesiologist Assistant 367H00000X NU
Anesthesiology Physician 207L00000X NU Primary

Addresses

Primary practice location

7160 Rafael Rivera Way Ste 210
Las Vegas, NV 89113-5395

Mailing address

PO Box 840857
Dallas, TX 75284-0857
Phone (725) 204-4632

Other names 2

  • US Anesthesia Partners of Nevada Doing business as
  • USAP - NEVADA Doing business as

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20031219000623 NV Part B Supplier - Clinic/Group Practice 5799683462 Receives reassigned benefits from 203 practitioners

National Provider Directory

National Provider Directory

Locations

10561 Jeffreys St
Ste 130
Henderson, NV 89052
Phone (702) 724-8900

10135 W Twain Ave
#10
Las Vegas, NV 89147
Phone (702) 832-5959

3560 E Flamingo Rd
Ste 105
Las Vegas, NV 89121
Phone (702) 454-8712

3820 S Hualapai Way
Ste 100
Las Vegas, NV 89147
Phone (702) 788-9154

3860 S Hualapai Way
Las Vegas, NV 89147
Phone (702) 870-7070

6120 S Fort Apache Rd
Ste 200
Las Vegas, NV 89148
Phone (702) 948-8894

7160 Rafael Rivera Way
Ste 210
Las Vegas, NV 89113

8530 W Sunset Rd
Ste 100
Las Vegas, NV 89113
Phone (702) 514-1411

8840 W Sunset Rd
Las Vegas, NV 89148
Phone (702) 374-2812

9120 W Russell Rd
#100
Las Vegas, NV 89148
Phone (702) 478-2897

9127 W Russell Rd
Ste 110
Las Vegas, NV 89148
Phone (702) 209-2042

800 Ryland St
Reno, NV 89502
Phone (775) 329-4600

Practitioners & affiliated clinicians

Practitioners 256

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 256

NPI Registry JSON

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

{
    "created_epoch": "1150761600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788393600000",
    "number": "1699710749",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 840857",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752840857",
            "telephone_number": "725-204-4632",
            "fax_number": "702-805-0307"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7160 RAFAEL RIVERA WAY STE 210",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891135395",
            "telephone_number": "702-878-0070",
            "fax_number": "702-805-0307"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "FIELDEN HANSON ISAACS MIYADA ROBISON YEH LTD",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-06-20",
        "last_updated": "2026-09-03",
        "certification_date": "2026-09-03",
        "status": "A",
        "authorized_official_last_name": "HAFEN",
        "authorized_official_first_name": "RYAN",
        "authorized_official_title_or_position": "MD",
        "authorized_official_telephone_number": "702-878-0070",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "US Anesthesia Partners of Nevada",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "USAP - NEVADA",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Las Vegas, NV

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.