WILLIAM P HAMMOND IV MD
NPI 1740277219
Internal Medicine - Medical Oncology in Burien, WA

Q: What is William Hammond's NPI number?

The NPI number for William Hammond is 1740277219. It was assigned to this individual provider in the NPPES registry on September 30, 2005.

Q: What is William Hammond'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 Hammond was last updated on December 3, 2020. 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 September 30, 2005PECOS Enrolled

16233 SYLVESTER RD SW, BURIEN, WA 98166(206) 439-5577(253) 426-4142 Get Directions Write a Review

NPPES record last updated: December 3, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About William P Hammond Iv Md NPPES

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

WILLIAM P HAMMOND IV MD (NPI 1740277219) is an individual medical oncology provider in Burien, Washington, licensed in Washington (MD00013202) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740277219

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameWILLIAM P HAMMOND IVCredential: MD

Location Address16233 SYLVESTER RD SWBurien, WA 98166-3045

Mailing Address16233 Sylvester Rd SwBurien, WA 98166-3045 · (206) 439-5577 · Fax (253) 426-4142

Phone(206) 439-5577

Fax(253) 426-4142

Sole ProprietorNo

Enumeration DateSeptember 30, 2005

Last NPPES UpdateDecember 3, 2020

NPPES CertifiedDecember 3, 2020

✔ NPI 1740277219 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in WA · MD00013202

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 Medicine · Hematology & OncologyTaxonomy 207RH0003X · License MD00013202 (WA)

16233 SYLVESTER RD SW, Burien, WA 98166

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Other Identifiers 3

Medicaid1017833WA

Other156945WA · L&i

Medicaid1740277219WA

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William P Hammond Iv 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.

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.

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.

50 services46 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

19 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98166 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

$189.37 typical visit price

range $63.67 – $189.37

Typical copayment $47.34 (range $15.91 – $47.34)

Most-billed visit code 99205

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.

MARGARET L LARSON ARNP PLLC

Family Medicine

16233 SYLVESTER RD SW, SUITE G30
BURIEN, WA 98166

King County (206) 244-5477

MATTHEW ALAN CHRISTIANSON

Pharmacist (Oncology)

16233 SYLVESTER RD SW, SUITE 110
BURIEN, WA 98166

King County (206) 988-5785

BONNIE J TAKASUGI MD

Internal Medicine (Hematology & Oncology)

16233 SYLVESTER RD SW, SUITE 110
BURIEN, WA 98166

King County (206) 241-2622

DR. CHRISTOPHER W. DUNCAN M.D.

Internal Medicine (Gastroenterology)

16233 SYLVESTER RD SW, G-20
BURIEN, WA 98166

King County (206) 431-9771

TUYET NGUYEN

Interpreter

16233 SYLVESTER RD SW
BURIEN, WA 98166

King County (206) 901-8980

BRIDGET SUNG PHARM.D

Pharmacist

16233 SYLVESTER RD SW
BURIEN, WA 98166

King County (206) 988-5714

KATELYN POWELL NP

Nurse Practitioner (Pediatrics)

16233 SYLVESTER RD SW
BURIEN, WA 98166

King County (203) 242-7822

GABOR KOVES MD

Internal Medicine

16233 SYLVESTER RD SW, SUITE G40
BURIEN, WA 98166

King County (206) 244-6625

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 Hammond's NPI number?

The NPI number for William Hammond is 1740277219. It was assigned to this individual provider in the NPPES registry on September 30, 2005.

Where is William Hammond located?

William Hammond practices at 16233 Sylvester Rd SW, Burien, WA 98166. The listed phone number is (206) 439-5577.

What is William Hammond's specialty?

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

Is William Hammond enrolled in Medicare?

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

What insurance does William Hammond accept?

Health plans from PacificSource Health Plans and Providence Health Plan list William Hammond 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 Hammond was last updated on December 3, 2020. 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.