Doctor profile · Federal record

Dr. Nagui Achamallah, M.D.

Psychiatry Physician (CMS: Psychiatry) · Modesto, CA

  • NPI 1629057393
  • Accepts Medicare
  • 49 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1601 Cummins Dr Ste D
Modesto, CA 953586411
(510) 900-3125

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
December 13, 2021
Year of graduation
1977 — 49 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
California #A48988

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629057393. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
158
Distinct HCPCS
2
Medicare allowed
$26,068
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 85 84 $193
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 73 55 $132

In context: peer comparison

Among 10 peers in Modesto Psychiatry Physician, average services per provider: 164. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
88
Patients
0
Total drug cost
$1,236
Drug Type Claims Patients Total cost
Trazodone Hcl Generic 22 0 $226
Sertraline Hcl Generic 21 0 $200
Buspirone Hcl Generic 20 0 $166
Bupropion Xl (Bupropion Hcl) Brand 14 0 $443
Duloxetine Hcl Generic 11 0 $202

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nagui Achamallah's medical specialty?
Dr. Nagui Achamallah practices Psychiatry Physician in Modesto, CA.
Where does Dr. Nagui Achamallah practice?
Dr. Nagui Achamallah practices at 1601 Cummins Dr Ste D, Modesto, CA 953586411. Office phone: 5109003125.
What is Dr. Nagui Achamallah's NPI?
Dr. Nagui Achamallah's National Provider Identifier (NPI) is 1629057393, issued by NPPES.
Does Dr. Nagui Achamallah accept Medicare assignment?
Yes. Dr. Nagui Achamallah accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nagui Achamallah commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.