Doctor profile · Federal record

Dr. William Harris, MD

Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Seattle, WA

  • NPI 1508980194
  • Accepts Medicare
  • MIPS 87.0 / 100 · 2023
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
825 Eastlake Ave E
Seattle, WA 981094405
(206) 288-7222
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
October 23, 2009
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
Washington #MD00043566
Medicaid
WA #8401036

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508980194. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$1,673
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 16 15 $105

In context: peer comparison

Among 18 peers in Seattle Medical Oncology Physician, average services per provider: 51. This provider delivers 0.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$13,582
Transactions
14
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 11 $13,169.14
Genentech USA, INC. 1 $143.24
AstraZeneca Pharmaceuticals Lp 1 $135.00
Pfizer INC. 1 $135.00

By nature of payment

Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$11,050
Food and Beverage
$1,604
Travel and Lodging
$929

Frequently asked questions

Auto-generated from federal data
What is Dr. William Harris's medical specialty?
Dr. William Harris practices Medical Oncology Physician in Seattle, WA.
Where does Dr. William Harris practice?
Dr. William Harris practices at 825 Eastlake Ave E, Seattle, WA 981094405. Office phone: 2062887222.
What is Dr. William Harris's NPI?
Dr. William Harris's National Provider Identifier (NPI) is 1508980194, issued by NPPES.
Does Dr. William Harris accept Medicare assignment?
Yes. Dr. William Harris accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Harris commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.