Individual provider Active NPI

William Jackson Ritchey, C.R.N.A.

  • Certified Registered Nurse Anesthetist
  • Fresno, CA
National Provider Identifier
1518932219
Registry record updated Feb 25, 2016
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
NA2106 Issued in CA
Practice address
Fresno & R Street
Fresno, CA 93721-1365
Phone
(559) 459-6000
NPI assigned
Feb 17, 2006
Last updated
Feb 25, 2016By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 25, 2016

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 NA2106 CA Primary

Addresses

Primary practice location

Fresno & R Street
Fresno, CA 93721-1365

Mailing address

PO Box 7096
Stockton, CA 95267-0096
Phone (209) 956-7725

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20091103000301 CA Practitioner - Certified Registered Nurse Anesthetist (Crna) 6709890304 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Baylor College of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Western States AnesthesiaGroup PAC ID 3173034949, 9 clinicians
Anesthesia Consultants of FresnoGroup PAC ID 8527967082, 64 clinicians
Coachella Valley Anesthesia a Professional CorporationGroup PAC ID 5698131969, 126 clinicians

Practice addresses (Care Compare)

1250 E Almond Ave
Madera, CA 93637-5606
Phone (559) 675-5555

1360 E Spruce Ave
Suite 101a
Fresno, CA 93720-3378
Phone (559) 437-5645

333 Mercy Ave
Merced, CA 95340-8319
Phone (209) 564-5023

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
92.04 of 100Reported as group
Quality
78.62
Promoting interoperability
100
Improvement activities
40
Cost
75.31

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Coachella Valley Anesthesia a Professional Corporation Nurse Anesthetist, Certified Registered CurrentSince Aug 11, 2025 Accepting new patients
Community Foundation Medical Group CurrentSince Jun 1, 2018 Accepting new patients
Community Foundation Medical Group CurrentSince Jun 1, 2018 Accepting new patients
Western States Anesthesia CurrentSince May 13, 2025 Accepting new patients
Community Foundation Medical Group Current Accepting new patients
Amarillo Anesthesia Consultants PA Nurse Anesthetist, Certified Registered Past Accepting new patients
Permian Anesthesia Associates, Inc Nurse Anesthetist, Certified Registered Past Accepting new patients

Locations

1700 Mount Vernon Ave
Bakersfield, CA 93306
Phone (616) 326-2000

420 34th St
Bakersfield, CA 93301
Phone (661) 324-4647

2755 Herndon Ave
Clovis, CA 93611
Phone (559) 323-4000

1843 E Fir Ave
Ste 104
Fresno, CA 93720
Phone (559) 323-6611

2335 E Kashian Ln
Ste 270
Fresno, CA 93701
Phone (559) 445-1251

2823 Fresno St
Fresno, CA 93721
Phone (559) 459-3965

45 E River Park Pl W
Ste 104
Fresno, CA 93720
Phone (559) 573-3430

7417 N Cedar Ave
Fresno, CA 93720
Phone 5594360871111

7417 N Cedar Ave
Ste 101
Fresno, CA 93720
Phone (559) 437-5645

6601 White Feather Rd
Joshua Tree, CA 92252
Phone (760) 366-1500

47120 Dune Palms Rd
Ste 111
La Quinta, CA 92253
Phone (760) 219-0155

44815 Fig Ave
Ste 100
Lancaster, CA 93534
Phone (661) 802-7978

1250 E Almond Ave
Madera, CA 93637
Phone (559) 675-5501

333 Mercy Ave
Merced, CA 95340
Phone (209) 385-1280

1150 N Indian Canyon Dr
Palm Springs, CA 92262
Phone (760) 323-6251

Organizations & group practices 8

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 3

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": "1140134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1456358400000",
    "number": "1518932219",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7096",
            "city": "STOCKTON",
            "state": "CA",
            "postal_code": "952670096",
            "telephone_number": "209-956-7725",
            "fax_number": "209-956-7733"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "FRESNO & R STREET",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937211365",
            "telephone_number": "559-459-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RITCHEY",
        "first_name": "WILLIAM",
        "middle_name": "JACKSON",
        "name_prefix": "Mr.",
        "credential": "C.R.N.A.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-17",
        "last_updated": "2016-02-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "CA",
            "license": "NA2106",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fresno, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 25, 2016; 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.