Doctor profile · Federal record

Dr. Thomas Malpass, MD

Hematology & Oncology Physician · Seattle, WA

  • NPI 1851309942
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1100 9Th Ave
Seattle, WA 981012756
(206) 223-6600
Mailing address
1100 Olive Way MSC M4-PA
Seattle, WA 981011873

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
April 8, 2008
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Washington #MD00016934
Medicaid
WA #8345506

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1851309942. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
201
Distinct HCPCS
4
Medicare allowed
$36,723
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 116 64 $155
99205 New patient office or other outpatient visit, 60-74 minutes 41 41 $272
99215 Established patient office or other outpatient visit, 40-54 minutes 27 23 $212
99213 Established patient office or other outpatient visit, 20-29 minutes 17 17 $111

In context: peer comparison

Among 60 peers in this city , average services per provider: 225. This provider delivers 0.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
17
Patients
0
Total drug cost
$362,863
Drug Type Claims Patients Total cost
Pomalyst (Pomalidomide) Brand 17 0 $362,863

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Malpass's medical specialty?
Dr. Thomas Malpass practices Hematology & Oncology Physician in Seattle, WA.
Where does Dr. Thomas Malpass practice?
Dr. Thomas Malpass practices at 1100 9Th Ave, Seattle, WA 981012756. Office phone: 2062236600.
What is Dr. Thomas Malpass's NPI?
Dr. Thomas Malpass's National Provider Identifier (NPI) is 1851309942, issued by NPPES.
What procedures does Dr. Thomas Malpass commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.