Doctor profile · Federal record

Dr. Diane Cox, P.A.C.

Surgical Physician Assistant (CMS: Physician Assistant) · Seattle, WA

  • NPI 1083981948
  • Accepts Medicare
  • MIPS 79.2 / 100 · 2023
  • 15 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
325 9Th Ave
Seattle, WA 981042420
(206) 520-5000
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
November 2011 — 15 yrs on file
Profile last updated
January 27, 2020
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
363AS0400X — NUCC code
State license (1)
Washington #PA60908344
Medicaid
WA #1083981948

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083981948. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
129
Distinct HCPCS
1
Medicare allowed
$9,061
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 129 59 $70

In context: peer comparison

Among 42 peers in Seattle Surgical Physician Assistant, average services per provider: 145. This provider delivers 0.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
15
Patients
15
Total drug cost
$110
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 15 15 $110

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Diane Cox's medical specialty?
Dr. Diane Cox practices Surgical Physician Assistant in Seattle, WA.
Where does Dr. Diane Cox practice?
Dr. Diane Cox practices at 325 9Th Ave, Seattle, WA 981042420. Office phone: 2065205000.
What is Dr. Diane Cox's NPI?
Dr. Diane Cox's National Provider Identifier (NPI) is 1083981948, issued by NPPES.
Does Dr. Diane Cox accept Medicare assignment?
Yes. Dr. Diane Cox accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diane Cox commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.