Doctor profile · Federal record

Dr. Joseph Demattia, P.A.-C

Physician Assistant · Wildomar, CA

  • NPI 1265547087
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
36485 Inland Valley Dr
Wildomar, CA 925959681
(909) 677-9773
Mailing address
2100 Powell St, Suite 900
Emeryville, CA 946081826

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
October 30, 2007
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #PA13663

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265547087. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,691
Transactions
67
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 16 $390.53
Genzyme Corporation 6 $168.40
Blueprint Medicines Corporation 4 $99.76
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 5 $97.77
Pfizer INC. 5 $78.38
Verity Pharmaceuticals INC. 4 $76.49
Otsuka America Pharmaceutical, INC. 4 $74.00
AstraZeneca Pharmaceuticals Lp 4 $67.84
Lilly USA, LLC 3 $65.91
Antares Pharma, INC. 3 $62.39
Novo Nordisk INC 3 $54.49
E.R. Squibb & Sons, L.L.C. 2 $52.84
Amgen INC. 3 $52.34
Abbott Laboratories 2 $45.71
Boehringer Ingelheim Pharmaceuticals, INC. 3 $45.45

By nature of payment

Food and Beverage
$1,691

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,101
Patients
989
Total drug cost
$44,990
Drug Type Claims Patients Total cost
Triamcinolone Acetonide Generic 255 171 $3,200
Diclofenac Sodium Generic 211 100 $4,602
Amlodipine Besylate Generic 196 68 $2,006
Levothyroxine Sodium Generic 157 51 $4,303
Atorvastatin Calcium Generic 155 42 $2,978
Ammonium Lactate Generic 144 99 $3,568
Imiquimod Generic 122 88 $2,304
Lisinopril Generic 117 35 $1,433
Metoprolol Succinate Generic 117 35 $2,708
Gabapentin Generic 116 32 $2,730

Frequently asked questions

Auto-generated from federal data
What is Dr. Joseph Demattia's medical specialty?
Dr. Joseph Demattia practices Physician Assistant in Wildomar, CA.
Where does Dr. Joseph Demattia practice?
Dr. Joseph Demattia practices at 36485 Inland Valley Dr, Wildomar, CA 925959681. Office phone: 9096779773.
What is Dr. Joseph Demattia's NPI?
Dr. Joseph Demattia's National Provider Identifier (NPI) is 1265547087, issued by NPPES.