Kathy Nguyen, FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

95017788 Issued in CA

Practice address

2222 East St Ste 250
Concord, CA 94520-2096

Phone

(925) 609-7220

NPI assigned

Jul 20, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

John Muir Physician NetworkGroup PAC ID 6608789813, 488 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180
• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496
• San Ramon Regional Medical Center Hospital, San Ramon, CA, CCN 050689

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: knguyen160658@ehr.johnmuirhealth.com

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.

• John Muir Physician Network

  • General Practice Physician
  • Walnut Creek, CA
  • NPI 1841407665
  Medicare reassignment Care Compare group NPD
• Wellspace Health

  • Federally Qualified Health Center (FQHC)
  • Sacramento, CA
  • NPI 1124112933
  Medicare reassignment NPD
• Wellspace Health

  • Federally Qualified Health Center (FQHC)
  • Sacramento, CA
  • NPI 1114682689
  NPD
• Wellspace Health

  • Federally Qualified Health Center (FQHC)
  • Sacramento, CA
  • NPI 1932663192
  NPD

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

• John Muir Health

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation
• John Muir Health

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• San Ramon Regional Medical Center, LLC

  • General Acute Care Hospital
  • San Ramon, CA
  • NPI 1932131489
  Care Compare affiliation

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

{
    "created_epoch": "1626739200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761436800000",
    "number": "1700459583",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD # 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-952-2828"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2222 EAST ST STE 250",
            "city": "CONCORD",
            "state": "CA",
            "postal_code": "945202096",
            "telephone_number": "925-609-7220"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 N Wiget Ln Ste 290",
            "address_purpose": "LOCATION",
            "city": "Walnut Creek",
            "state": "CA",
            "postal_code": "945985901",
            "country_code": "US",
            "telephone_number": "925-937-7740",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "KATHY",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-07-20",
        "last_updated": "2025-10-26",
        "certification_date": "2025-10-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "95017788",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jessica Nguyen
• Jessica Maianh Nguyen
• Kaelyn Dieu-Tuong Nguyen
• Katelyn Nguyen
• Kathy Nguyen
• Katie Nguyen
• Kayla Nguyen
• Keven Nguyen
• Kim Phuoc My Nguyen
• Kristy Nguyen

• Family Nurse Practitioner in Concord, CA
• Providers in Concord, CA by specialty
• Family Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 26, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.