Doctor profile · Federal record

Dr. James Derum, PA-C

Physician Assistant · Walnut Creek, CA

  • NPI 1447355474
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1990 N California Blvd Ste 400
Walnut Creek, CA 945967249
(925) 225-5837
fax (925) 225-5838
Mailing address
67871 Valley Vista Dr
Cathedral City, CA 922342351

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
April 23, 2013
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #PA16110

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1447355474. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
22
Distinct HCPCS
1
Medicare allowed
$2,284
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 22 22 $104

In context: peer comparison

Among 14 peers in Walnut Creek Physician Assistant, average services per provider: 154. This provider delivers 0.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
23
Patients
0
Total drug cost
$224
Drug Type Claims Patients Total cost
Ibuprofen Generic 12 0 $77
Esomeprazole Magnesium Generic 11 0 $147

Frequently asked questions

Auto-generated from federal data
What is Dr. James Derum's medical specialty?
Dr. James Derum practices Physician Assistant in Walnut Creek, CA.
Where does Dr. James Derum practice?
Dr. James Derum practices at 1990 N California Blvd Ste 400, Walnut Creek, CA 945967249. Office phone: 9252255837.
What is Dr. James Derum's NPI?
Dr. James Derum's National Provider Identifier (NPI) is 1447355474, issued by NPPES.
What procedures does Dr. James Derum commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.