DR. THOMAS RALPH WILLIAMS IV D.O.
NPI 1558488445
Emergency Medicine in Tacoma, WA

Q: What is Thomas Williams's NPI number?

The NPI number for Thomas Williams is 1558488445. It was assigned to this individual provider in the NPPES registry on March 23, 2007.

Q: What is Thomas Williams's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Williams was last updated on March 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since March 23, 2007PECOS Enrolled

9040 JACKSON AVE, TACOMA, WA 98431(253) 968-2252 Get Directions Write a Review

NPPES record last updated: March 29, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 29, 2021, Jan 29, 2016 (2 updates tracked since 2016).

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About Dr. Thomas Ralph Williams Iv D.o. NPPES

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

DR. THOMAS RALPH WILLIAMS IV D.O. (NPI 1558488445) is an individual emergency medicine provider in Tacoma, Washington, licensed in Washington (OP60080001) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in Lakewood.

NPPES Registry Identity

NPI1558488445

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. THOMAS RALPH WILLIAMS IVCredential: D.O.

Location Address9040 JACKSON AVETacoma, WA 98431-3004

Mailing Address8507 23rd Street Ct WUniversity Place, WA 98466-2800 · (253) 227-6509

Phone(253) 968-2252

Sole ProprietorYes

Enumeration DateMarch 23, 2007

Last NPPES UpdateMarch 29, 20212 updates tracked since enumeration

NPPES CertifiedMarch 29, 2021

✔ NPI 1558488445 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in WA · OP60080001

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

9040 JACKSON AVE, Tacoma, WA 98431

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Secondary Practice Location 1

Location 111315 Bridgeport Way SWLakewood, WA 98499-3004 · Phone (253) 985-8700

Other Identifiers 4

Other0102202983VA · Medical License

Other12308423Caqh

Other5101017126MI · Medical License

OtherOP60080001WA · Washington State

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Thomas Ralph Williams Iv D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Thomas Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Emergency Physicians LLC

78 mi

Emergency Medicine

330 S STILLAGUAMISH AVE
Arlington, WA 98223

Reassigned Medicare billing, Washington enrollment
519 clinicians in this Medicare group

NPI 1235172370 (925) 251-6901

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 3

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

24 services24 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

20 services20 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98431 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

$88.29 typical visit price

range $57.27 – $172.80

Typical copayment $22.07 (range $14.31 – $43.20)

Most-billed visit code 99203

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$62.02 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$31.52 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

MICHAEL JOHN MEANS CRNA

Nurse Anesthetist, Certified Registered