Doctor profile · Federal record

Dr. Ramon Marquez, M.D.

Psychiatry Physician · Dekalb, IL

  • NPI 1689763419
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
147 N 2Nd St, Suite #7
Dekalb, IL 601153276
(815) 217-0155
fax (815) 217-0185

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
October 13, 2011
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
Illinois #036116692
Medicaid
IL #036116692

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689763419. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$52
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Otsuka America Pharmaceutical, INC. 2 $51.65

By nature of payment

Food and Beverage
$52

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
157
Patients
0
Total drug cost
$107,252
Drug Type Claims Patients Total cost
Invega Sustenna (Paliperidone Palmitate) Brand 34 0 $100,883
Alprazolam Generic 17 0 $82
Olanzapine Generic 16 0 $499
Duloxetine Hcl Generic 15 0 $747
Escitalopram Oxalate Generic 15 0 $98
Oxcarbazepine Generic 13 0 $223
Clonazepam Generic 12 0 $46
Paliperidone ER (Paliperidone) Brand 12 0 $4,345
Quetiapine Fumarate Generic 12 0 $134
Divalproex Sodium Generic 11 0 $196

Frequently asked questions

Auto-generated from federal data
What is Dr. Ramon Marquez's medical specialty?
Dr. Ramon Marquez practices Psychiatry Physician in Dekalb, IL.
Where does Dr. Ramon Marquez practice?
Dr. Ramon Marquez practices at 147 N 2Nd St, Dekalb, IL 601153276. Office phone: 8152170155.
What is Dr. Ramon Marquez's NPI?
Dr. Ramon Marquez's National Provider Identifier (NPI) is 1689763419, issued by NPPES.