Doctor profile · Federal record

Dr. Mark Wener

Clinical & Laboratory Immunology (Internal Medicine) Physician (CMS: Rheumatology) · Rheumatology Physician · Seattle, WA

  • NPI 1528146982
  • Accepts Medicare
  • MIPS 87.0 / 100 · 2023
  • 52 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
University of Washington Medical Ctr, 1959 Ne Pacific St
Seattle, WA 981956166
(206) 598-4615
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
November 29, 2011
Year of graduation
1974 — 52 yrs since
Specialty taxonomy
207RI0001X — NUCC code
State license (1)
Washington #MD00018289
Medicaid
WA #1528146982

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1528146982. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,397
Distinct HCPCS
5
Medicare allowed
$46,974
HCPCS Description Services Patients Avg allowed
84165 Protein measurement, serum 1,436 863 $19
86334 Immunologic analysis technique on serum (immunofixation) 634 465 $19
84166 Protein measurement, body fluid 171 150 $19
86335 Immunologic analysis technique on body fluid, other fluids with concentration 136 122 $19
99214 Established patient office or other outpatient visit, 30-39 minutes 20 13 $105

In context: peer comparison

Among 2 peers in Seattle Clinical & Laboratory Immunology (Internal Medicine) Physician, average services per provider: 466. This provider delivers 5.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
179
Patients
11
Total drug cost
$131,383
Drug Type Claims Patients Total cost
Prednisone Generic 47 11 $819
Methotrexate (Methotrexate Sodium) Brand 29 0 $781
Mycophenolate Mofetil Generic 21 0 $1,945
Colchicine Generic 18 0 $1,711
Hydroxychloroquine Sulfate Generic 15 0 $634
Actemra (Tocilizumab) Brand 13 0 $63,357
Actemra Actpen (Tocilizumab) Brand 12 0 $60,202
Alendronate Sodium Generic 12 0 $161
Mycophenolic Acid (Mycophenolate Sodium) Brand 12 0 $1,773

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Wener's medical specialty?
Dr. Mark Wener practices Clinical & Laboratory Immunology (Internal Medicine) Physician in Seattle, WA.
Where does Dr. Mark Wener practice?
Dr. Mark Wener practices at University of Washington Medical Ctr, Seattle, WA 981956166. Office phone: 2065984615.
What is Dr. Mark Wener's NPI?
Dr. Mark Wener's National Provider Identifier (NPI) is 1528146982, issued by NPPES.
Does Dr. Mark Wener accept Medicare assignment?
Yes. Dr. Mark Wener accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Wener commonly perform?
Top Medicare-reported procedures in 2023: Protein measurement, serum (HCPCS 84165); Immunologic analysis technique on serum (immunofixation) (HCPCS 86334); Protein measurement, body fluid (HCPCS 84166). Source: CMS Medicare Physician & Other Practitioners file.