VAUGHAN MATTHEW WASHCO DO
NPI 1891085171
Internal Medicine - Nephrology in Seattle, WA

Active since April 07, 2011PECOS EnrolledAccepts Medicare Assignment
1959 NE PACIFIC ST, SEATTLE, WA 98195(206) 520-5000 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 15, 2022, Jan 11, 2022, Apr 1, 2019 (3 updates tracked since 2019).

About Vaughan Matthew Washco Do NPPES

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

VAUGHAN MATTHEW WASHCO DO (NPI 1891085171) is an individual nephrology provider in Seattle, Washington, licensed in Washington (OP61625004) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of Philadelphia College Of Osteopathic Medicine (2011).

NPPES Registry Identity

NPI1891085171
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameVAUGHAN MATTHEW WASHCOCredential: DO
Location Address1959 NE PACIFIC STSeattle, WA 98195-0001
Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700
Sole ProprietorNo
Medical School CMSPhiladelphia College Of Osteopathic MedicineGraduated 2011
Enumeration DateApril 7, 2011
Last NPPES UpdateApril 14, 20253 updates tracked since enumeration
NPPES CertifiedApril 14, 2025
NPI 1891085171 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses Licensed in WA · OP61625004 Licensed in VA · 0102205645
Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 0102205645 (VA)
1959 NE PACIFIC ST, Seattle, WA 98195

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Vaughan Matthew Washco 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 ID6002132776
PECOS Enrollment IDI20250311003222
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.

Areas of Expertise CMS Part B claims 2

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.

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.
292 services146 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
69 services60 patients

Hospital Affiliations CMS Care Compare

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

University Of Washington Medical Ctr

Acute Care Hospitals · Seattle, WA
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number500008
Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98195 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.

Internal Medicine (Nephrology)
1959 NE PACIFIC ST
SEATTLE, WA 98195
Psychiatry & Neurology (Neurology)
1959 NE PACIFIC ST
SEATTLE, WA 98195
Psychiatry & Neurology (Psychiatry)
1959 NE PACIFIC ST
SEATTLE, WA 98195
Nurse Practitioner (Family)
1959 NE PACIFIC ST, BOX 356174
SEATTLE, WA 98195
Genetic Counselor, MS
1959 NE PACIFIC ST, BOX 357720
SEATTLE, WA 98195
Genetic Counselor, MS
1959 NE PACIFIC ST, BOX 356320 UNIV. OF WASH
SEATTLE, WA 98195
Nurse Practitioner (Family)
1959 NE PACIFIC ST
SEATTLE, WA 98195
Emergency Medicine
1959 NE PACIFIC ST
SEATTLE, WA 98195

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 Vaughan Washco's NPI number?

The NPI number for Vaughan Washco is 1891085171. It was assigned to this individual provider in the NPPES registry on April 7, 2011.

Where is Vaughan Washco located?

Vaughan Washco practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 520-5000.

What is Vaughan Washco's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Vaughan Washco enrolled in Medicare?

Yes. Vaughan Washco 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.

What insurance does Vaughan Washco accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Vaughan Washco 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 Vaughan Washco affiliated with any hospitals?

According to CMS data, Vaughan Washco is affiliated with University Of Washington Medical Ctr.

When was this NPI record last updated?

The NPPES record for Vaughan Washco was last updated on April 14, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.