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WILLIAM TANG MD
NPI 1851977409
Anesthesiology in Renton, WA

Active since March 23, 2021PECOS EnrolledAccepts Medicare Assignment
400 S 43RD ST, RENTON, WA 98055(425) 251-5180 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 4, 2026, Mar 23, 2021 (2 updates tracked since 2021).

About William Tang Md NPPES

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

WILLIAM TANG MD (NPI 1851977409) is an individual anesthesiology provider in Renton, Washington, licensed in Washington (MD61669362) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Valley Medical Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1851977409
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM TANGCredential: MD
Location Address400 S 43RD STRenton, WA 98055-5714
Mailing Address400 S 43rd StRenton, WA 98055-5714
Phone(425) 251-5180
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 23, 2021
Last NPPES UpdateMay 4, 20262 updates tracked since enumeration
NPPES CertifiedMay 4, 2026
✔ NPI 1851977409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in WA · MD61669362
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
400 S 43RD ST, Renton, WA 98055
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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

William Tang Md 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 ID9537667936
PECOS Enrollment IDI20250813002714
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.

Hospital Affiliations CMS Care Compare

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

Valley Medical Center

Acute Care Hospitals · Renton, WA
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number500088
Location400 S 43rd StRenton, WA 98055 · King County
Emergency services Birthing friendly

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.

CATHERINE A MICKELSON SLP
Speech-Language Pathologist
400 S 43RD ST
RENTON, WA 98055
King County (425) 251-5165
IRENE A BRYANT PT
Physical Therapist
400 S 43RD ST
RENTON, WA 98055
King County (425) 251-5165
JEFFREY C THOMPSON MD
Internal Medicine
400 S 43RD ST, RM 3H-1-053
RENTON, WA 98055
King County (425) 228-3440
AARON TZUPENG FANG M.D.
Hospitalist
400 S 43RD ST
RENTON, WA 98055
King County (425) 228-3440
DR. TORY JOHN OLSEN MD
Student in an Organized Health Care Education/Training Program
400 S 43RD ST
RENTON, WA 98055
King County (425) 656-4224
ANNE B VILLARI PT
Physical Therapist
400 S 43RD ST
RENTON, WA 98055
King County (425) 251-5165
DAN LAM RPH
Pharmacist
400 S 43RD ST
RENTON, WA 98055
King County (425) 251-5164
ANNA L SAMSON STEIN MD
Hospitalist
400 S 43RD ST
RENTON, WA 98055
King County (425) 228-3440

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 William Tang's NPI number?

The NPI number for William Tang is 1851977409. It was assigned to this individual provider in the NPPES registry on March 23, 2021.

Where is William Tang located?

William Tang practices at 400 S 43rd St, Renton, WA 98055. The listed phone number is (425) 251-5180.

What is William Tang's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is William Tang enrolled in Medicare?

Yes. William Tang 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.

Is William Tang affiliated with any hospitals?

According to CMS data, William Tang is affiliated with Valley Medical Center.

When was this NPI record last updated?

The NPPES record for William Tang was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.