Doctor profile · Federal record

Dr. Catherine O'Neill, PA-C

Physician Assistant · Concord, CA

  • NPI 1407455116
  • Accepts Medicare
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4397 Arrowwood Cir
Concord, CA 945214428
(925) 326-8453
Mailing address
45 E San Joaquin St
Salinas, CA 939012903

Credentials & registration

NPPES · NUCC
NPI registered
October 2020 — 6 yrs on file
Profile last updated
June 3, 2021
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1407455116. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,001
Transactions
37
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 17 $442.30
AstraZeneca Pharmaceuticals LP 7 $163.89
Blueprint Medicines Corporation 1 $106.02
GENZYME CORPORATION 3 $97.37
Grifols USA, LLC 2 $39.45
Amgen Inc. 1 $27.67
Novartis Pharmaceuticals Corporation 1 $26.76
Optinose US, Inc. 1 $23.68
Takeda Pharmaceuticals U.S.A., Inc. 1 $22.50
Octapharma USA, Inc. 1 $19.09
Genentech USA, Inc. 1 $18.13
Incyte Corporation 1 $14.61

By nature of payment

Food and Beverage
$1,001

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
517
Patients
152
Total drug cost
$101,248
Drug Type Claims Patients Total cost
Fluticasone Propionate Generic 105 34 $2,317
Montelukast Sodium Generic 86 24 $1,502
Azelastine Hcl Generic 63 23 $2,502
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 55 18 $43,043
Symbicort (Budesonide/Formoterol Fumarate) Brand 37 0 $14,878
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 28 19 $1,141
Breo Ellipta (Fluticasone/Vilanterol) Brand 22 0 $9,520
Spiriva Respimat (Tiotropium Bromide) Brand 22 0 $11,634
Azithromycin Generic 21 19 $112
Epinephrine Generic 17 15 $3,623

Frequently asked questions

Auto-generated from federal data
What is Dr. Catherine O'Neill's medical specialty?
Dr. Catherine O'Neill practices Physician Assistant in Concord, CA.
Where does Dr. Catherine O'Neill practice?
Dr. Catherine O'Neill practices at 4397 Arrowwood Cir, Concord, CA 945214428. Office phone: 9253268453.
What is Dr. Catherine O'Neill's NPI?
Dr. Catherine O'Neill's National Provider Identifier (NPI) is 1407455116, issued by NPPES.
Does Dr. Catherine O'Neill accept Medicare assignment?
Yes. Dr. Catherine O'Neill accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.