Doctor profile · Federal record

Dr. Mark Halim

Child & Adolescent Psychiatry Physician (CMS: Psychiatry) · Psychiatry Physician · Fontana, CA

  • NPI 1558998542
  • Accepts Medicare
  • 6 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
17234 Valley Blvd., Bldg. A
Fontana, CA 92335
(661) 998-0424

Credentials & registration

NPPES · NUCC
NPI registered
March 2020 — 6 yrs on file
Profile last updated
September 15, 2025
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
2084P0804X — NUCC code
State license (1)
California #A177063

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558998542. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$145
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, Inc 1 $145.32

By nature of payment

Food and Beverage
$145

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
104
Patients
0
Total drug cost
$2,602
Drug Type Claims Patients Total cost
Quetiapine Fumarate Generic 23 0 $916
Trazodone Hcl Generic 22 0 $312
Hydroxyzine Hcl Generic 20 0 $300
Buspirone Hcl Generic 16 0 $674
Mirtazapine Generic 12 0 $211
Sertraline Hcl Generic 11 0 $188

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Halim's medical specialty?
Dr. Mark Halim practices Child & Adolescent Psychiatry Physician in Fontana, CA.
Where does Dr. Mark Halim practice?
Dr. Mark Halim practices at 17234 Valley Blvd., Fontana, CA 92335. Office phone: 6619980424.
What is Dr. Mark Halim's NPI?
Dr. Mark Halim's National Provider Identifier (NPI) is 1558998542, issued by NPPES.
Does Dr. Mark Halim accept Medicare assignment?
Yes. Dr. Mark Halim accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.