Lok Yun Louise Sin, ARNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

AP61164250 Issued in WA

Practice address

3915 Talbot Rd S Ste 300
Renton, WA 98055-5738

Phone

(425) 690-3409

Fax

(425) 690-9004

NPI assigned

Mar 5, 2021

Last updated

Oct 31, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA, MD, WA3 enrollments

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 3

Specialty

Nurse Practitioner

Education

Other, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Valley Medical Group-RentonGroup PAC ID 4183753965, 419 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Valley Medical Center Hospital, Renton, WA, CCN 500088

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lsin125350@direct.valleymed.org
• Direct secure messaging: lsin982138@direct.hopkinsmedicine.org

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.

• Valley Medical Group-Renton

  • General Acute Care Hospital
  • Renton, WA
  • NPI 1619209574

  Nurse Practitioner

  Medicare reassignment Care Compare group NPD
• Johns Hopkins University

  dba Jhu - Anesthesia Pain MGMT

  • Pain Medicine (Anesthesiology) Physician
  • Baltimore, MD
  • NPI 1922008549
  Medicare reassignment NPD
• Regents of the Univ of Ca

  • Maternal & Fetal Medicine Physician
  • Sacramento, CA
  • NPI 1013906973
  Medicare reassignment NPD
• Starling Oncology Ca, a Professional Corporation

  dba Starling Oncology

  • Hematology & Oncology Physician
  • Downey, CA
  • NPI 1275651515
  Medicare reassignment NPD
• Johns Hopkins University

  dba JHU - 4692 Millennium Drive - Physician

  • Ophthalmology Physician
  • Belcamp, MD
  • NPI 1376342774
  NPD
• Johns Hopkins University

  dba Jhu - Cardiology

  • Cardiovascular Disease Physician
  • Baltimore, MD
  • NPI 1801891080
  NPD
• Regents of the Univ of Ca

  • Diagnostic Radiology Physician
  • Sacramento, CA
  • NPI 1477546406
  NPD
• Regents of the Univ of Ca

  • Trauma Surgery Physician
  • Sacramento, CA
  • NPI 1568455590
  NPD
• Starling Oncology Ca, a Professional Corporation

  dba Starling Oncology

  • Hematology & Oncology Physician
  • Las Vegas, NV
  • NPI 1225514508
  NPD
• Public Hospital District #1 of King County

  dba VMC Children's Therapy

  • Rehabilitation Hospital Unit
  • Renton, WA
  • NPI 1811063308
  NPD (past)
• Public Hospital District 1 of King County

  dba Valley Medical Center

  • General Acute Care Hospital
  • Renton, WA
  • NPI 1649209230
  NPD (past)
• University of Washington

  dba University of Washington Medical Center

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1326002049
  NPD (past)

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

• Public Hospital District 1 of King County

  dba Valley Medical Center

  • General Acute Care Hospital
  • Renton, WA
  • NPI 1649209230
  Care Compare affiliation
• Valley Medical Group-Renton

  • General Acute Care Hospital
  • Renton, WA
  • NPI 1619209574
  Care Compare affiliation

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

{
    "created_epoch": "1614902400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761868800000",
    "number": "1083209514",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3915 TALBOT RD S STE 300",
            "city": "RENTON",
            "state": "WA",
            "postal_code": "980555738",
            "telephone_number": "425-690-3409",
            "fax_number": "425-690-9004"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3915 TALBOT RD S STE 300",
            "city": "RENTON",
            "state": "WA",
            "postal_code": "980555738",
            "telephone_number": "425-690-3409",
            "fax_number": "425-690-9004"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "207 S Santa Anita St Ste P05",
            "address_purpose": "LOCATION",
            "city": "San Gabriel",
            "state": "CA",
            "postal_code": "917761159",
            "country_code": "US",
            "telephone_number": "626-652-7433",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIN",
        "first_name": "LOK YUN LOUISE",
        "name_prefix": "Ms.",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-03-05",
        "last_updated": "2025-10-31",
        "certification_date": "2025-10-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WA",
            "license": "AP61164250",
            "primary": true
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "WA",
            "license": "AP61164250",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2249439",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Tania Lisset Silva
• Daniel R Simon, MD
• Jolene Simpson, PH.D.
• Sherry Ann Sims
• Jiah Sin
• Sampat Sindhar, MD
• Andrew S Sinfuego, M.D.
• Sarah May Sing, PHARM.D.
• Preetkamal Neetu Singh-Cheema, M.D.
• Bhudevi Singh, OTRL

• Nurse Practitioner in Renton, WA
• Providers in Renton, WA by specialty
• Nurse Practitioner in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 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.