WILLIAM IRA BENSINGER MD
NPI 1922198886
Internal Medicine - Medical Oncology in Lakewood, WA

Q: What is William Bensinger's NPI number?

The NPI number for William Bensinger is 1922198886. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Q: What is William Bensinger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for William Bensinger was last updated on October 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 October 13, 2006PECOS Enrolled

80.27/100

CMS Quality Rating

11311 BRIDGEPORT WAY SW STE 302, LAKEWOOD, WA 98499(253) 533-6700(253) 584-1271 Get Directions Write a Review

NPPES record last updated: October 5, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 5, 2022, Apr 14, 2022, Jan 29, 2019 (3 updates tracked since 2019).

On this page

About William Ira Bensinger Md NPPES

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

WILLIAM IRA BENSINGER MD (NPI 1922198886) is an individual medical oncology provider in Lakewood, Washington, licensed in Washington (MD00015198) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922198886

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameWILLIAM IRA BENSINGERCredential: MD

Location Address11311 BRIDGEPORT WAY SW STE 302Lakewood, WA 98499-3078

Mailing Address8684 Island Dr SSeattle, WA 98118-4734

Phone(253) 533-6700

Fax(253) 584-1271

Sole ProprietorNo

Enumeration DateOctober 13, 2006

Last NPPES UpdateOctober 5, 20223 updates tracked since enumeration

NPPES CertifiedOctober 5, 2022

✔ NPI 1922198886 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in WA · MD00015198

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Also ListedInternal MedicineTaxonomy 207R00000X · License MD00015198 (WA)

Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License MD00015198 (WA)

11311 BRIDGEPORT WAY SW STE 302, Lakewood, WA 98499

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Other Identifiers 3

Other1250Internal Id-motor Vehicle Id

Medicaid1922198886WA

Other0230725WA · L&i

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Ira Bensinger Md 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 William Bensinger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Medical Specialties PLLC

6.6 mi

Multi-Specialty

1624 S I ST, SUITE #305
Tacoma, WA 98405

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

NPI 1548261308 (253) 428-8700

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 12

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.

Injection, fosaprepitant, 1 mg J1453

Fosaprepitant is an anti-nausea medication given via injection. It's often used to prevent nausea and vomiting caused by chemotherapy. This injection blocks signals to the brain that trigger these symptoms, helping you feel better.

2,700 services14 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

220 services24 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

180 services14 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

52 services35 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

50 services25 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

47 services33 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

39 services30 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

29 services23 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

25 services11 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

25 services12 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

15 services12 patients

Administration of additional new drug or substance into vein, 1 hour or less 96417

This procedure involves introducing a new drug or substance into your vein, typically via an IV drip. It lasts for an hour or less. This method allows the substance to quickly reach your bloodstream, ensuring rapid and effective treatment.

13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98499 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

$172.80 typical visit price

range $57.27 – $172.80

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

Most-billed visit code 99205

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.27/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

76.83

Promoting Interoperability

Improvement Activities

Cost

55.36

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 Bensinger's NPI number?

The NPI number for William Bensinger is 1922198886. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Where is William Bensinger located?

William Bensinger practices at 11311 Bridgeport Way SW Ste 302, Lakewood, WA 98499. The listed phone number is (253) 533-6700.

What is William Bensinger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is William Bensinger enrolled in Medicare?

Yes. William Bensinger is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Bensinger's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Bensinger reassigns Medicare benefits to Northwest Medical Specialties PLLC (Tacoma, WA). The 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 William Bensinger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Bensinger accept?

Health plans from Ambetter Health and Providence Health Plan list William Bensinger 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.

When was this NPI record last updated?

The NPPES record for William Bensinger was last updated on October 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.