Doctor profile · Federal record

Dr. Kathreen Castro, NP

Family Nurse Practitioner · Nurse Practitioner · Los Angeles, CA

  • NPI 1043602857
  • 11 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1005 E Washington Blvd Ste A
Los Angeles, CA 900213082
(323) 233-3100
fax (323) 233-4100
Additional location
2098 S Central Ave
Los Angeles, CA 900111235
Additional location
2801 S San Pedro St
Los Angeles, CA 90011
fax (323) 233-3124
Mailing address
2801 S San Pedro St
Los Angeles, CA 900112023

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
June 4, 2021
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
California #95000820
Medicaid
CA #1093023277

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1043602857. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$109
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Bayer Healthcare Pharmaceuticals INC. 2 $50.27
Exact Sciences Corporation 1 $22.86
Lilly USA, LLC 1 $18.41
Pfizer INC. 1 $17.87

By nature of payment

Food and Beverage
$109

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
49
Patients
15
Total drug cost
$1,065
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 24 15 $634
Metformin Hcl Generic 13 0 $345
Hydrochlorothiazide Generic 12 0 $86

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathreen Castro's medical specialty?
Dr. Kathreen Castro practices Family Nurse Practitioner in Los Angeles, CA.
Where does Dr. Kathreen Castro practice?
Dr. Kathreen Castro practices at 1005 E Washington Blvd Ste A, Los Angeles, CA 900213082. Office phone: 3232333100.
What is Dr. Kathreen Castro's NPI?
Dr. Kathreen Castro's National Provider Identifier (NPI) is 1043602857, issued by NPPES.