LIEN B NGUYEN DO
NPI 1023402914
Psychiatry & Neurology - Neurology in Seattle, WA

Active since March 27, 2015PECOS EnrolledAccepts Medicare Assignment
550 17TH AVE, SEATTLE, WA 98122(206) 320-2800(206) 320-2827 Get Directions Write a Review

NPPES record last updated: October 4, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Lien B Nguyen Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LIEN B NGUYEN DO (NPI 1023402914) is an individual neurology provider in Seattle, Washington, licensed in Washington (OP60946987) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center / Cherry Hill, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1023402914
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameLIEN B NGUYENCredential: DO
Location Address550 17TH AVESeattle, WA 98122-5788
Mailing AddressPo Box 25608Salt Lake City, UT 84125-0608 · (206) 320-4476 · Fax (206) 568-7043
Fax(206) 320-2827
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 27, 2015
Last NPPES UpdateOctober 4, 2019
✔ NPI 1023402914 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in WA · OP60946987
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
550 17TH AVE, Seattle, WA 98122

Other Identifiers 1

Medicaid1023402914WA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lien B Nguyen Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830404417
PECOS Enrollment IDI20191030002908
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

10

Medicare enrollment records show Lien Nguyen reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
800 5TH AVE, STE 600
Seattle, WA 98104
  • Reassigned Medicare billing, Washington enrollment
  • 1,270 clinicians in this Medicare group
Family Medicine
16708 BOTHELL-EVERETT HIGHWAY, SUITE 201
Mill Creek, WA 98012
  • Reassigned Medicare billing, Washington enrollment
  • 705 clinicians in this Medicare group
Family Medicine
525 LILLY RD NE
Olympia, WA 98506
  • Reassigned Medicare billing, Washington enrollment
  • 646 clinicians in this Medicare group
Pediatrics
971 11TH AVE
Longview, WA 98632
  • Reassigned Medicare billing, Washington enrollment
  • 77 clinicians in this Medicare group
Family Medicine
1200 E COLUMBIA AVE
Colville, WA 99114
  • Reassigned Medicare billing, Washington enrollment
  • 862 clinicians in this Medicare group
General Practice
1705 SE MEADOWBROOK BLVD, SUITE 2
College Place, WA 99324
  • Reassigned Medicare billing, Washington enrollment
  • 276 clinicians in this Medicare group
Family Medicine
500 W BROADWAY ST
Missoula, MT 59802
  • Reassigned Medicare billing, Washington enrollment
  • 51 clinicians in this Medicare group
Clinic/Center
SUNRISE LODGE
Edna Bay, AK 99901
  • Reassigned Medicare billing, Texas enrollment
  • 640 clinicians in this Medicare group
Family Medicine
4101 TORRANCE BLVD
Torrance, CA 90503
  • Reassigned Medicare billing, Washington enrollment
  • 60 clinicians in this Medicare group
Critical Care Medicine
3200 PROVIDENCE DR
Anchorage, AK 99508
  • Reassigned Medicare billing, Washington enrollment
  • 62 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
64 services40 patients
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes 99451
This service involves a consulting physician assessing your health condition via a phone or internet interaction. The doctor will spend at least 5 minutes discussing your health concerns. Afterwards, a written report summarizing the findings and recommendations will be provided for your reference.
64 services63 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
39 services39 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
26 services26 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Swedish Medical Center / Cherry Hill

Acute Care Hospitals · Seattle, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500025
Location500 17th AvenueSeattle, WA 98122 · King County
Emergency services

Swedish Edmonds Hospital

Acute Care Hospitals · Edmonds, WA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500026
Location21601 76th Avenue WestEdmonds, WA 98026 · Snohomish County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98122 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
550 17TH AVE, STE 110
SEATTLE, WA 98122
Psychiatry & Neurology (Sleep Medicine)
550 17TH AVE
SEATTLE, WA 98122
Psychiatry & Neurology (Neurology)
550 17TH AVE, FIFTH FLOOR
SEATTLE, WA 98122
Psychiatry & Neurology (Sleep Medicine)
550 17TH AVE, STE A20
SEATTLE, WA 98122
Internal Medicine (Cardiovascular Disease)
550 17TH AVE, SUITE 450
SEATTLE, WA 98122
Psychiatry & Neurology (Neurology)
550 17TH AVE, FIFTH FLOOR
SEATTLE, WA 98122
Clinic/Center (Sleep Disorder Diagnostic)
550 17TH AVE, STE A20
SEATTLE, WA 98122
Neurological Surgery
550 17TH AVE, STE 500
SEATTLE, WA 98122

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lien Nguyen's NPI number?

The NPI number for Lien Nguyen is 1023402914. It was assigned to this individual provider in the NPPES registry on March 27, 2015.

Where is Lien Nguyen located?

Lien Nguyen practices at 550 17th Ave, Seattle, WA 98122. The listed phone number is (206) 320-2800.

What is Lien Nguyen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Lien Nguyen enrolled in Medicare?

Yes. Lien Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Lien Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lien Nguyen reassigns Medicare benefits to 10 organizations: Swedish Health Services (Seattle, WA), Providence Health & Services- Washington (Mill Creek, WA), Providence Health & Services Washington (Olympia, WA), Providence Health & Services Oregon (Longview, WA), Providence Health & Services Washington (Colville, WA) and 5 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lien Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lien Nguyen accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and Premera Blue Cross Blue Shield of Alaska list Lien Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Lien Nguyen affiliated with any hospitals?

According to CMS data, Lien Nguyen is affiliated with Swedish Medical Center / Cherry Hill and Swedish Edmonds Hospital.

When was this NPI record last updated?

The NPPES record for Lien Nguyen was last updated on October 4, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.