Doctor profile · Federal record

Dr. Peter Cotsirilos, M.D.

Psychiatry Physician (CMS: Psychiatry) · Red Bluff, CA

  • NPI 1235378621
  • Accepts Medicare
  • 39 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
925 Walnut St
Red Bluff, CA 960803707
(530) 567-7300
Mailing address
3313 Besana Dr
El Dorado Hills, CA 957627630

Credentials & registration

NPPES · NUCC
NPI registered
February 2009 — 17 yrs on file
Profile last updated
September 12, 2022
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
California #G66322

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235378621. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
447
Distinct HCPCS
6
Medicare allowed
$43,629
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 271 104 $92
99212 Established patient office or other outpatient visit, 10-19 minutes 71 52 $58
99214 Established patient office or other outpatient visit, 30-39 minutes 58 39 $130
90792 Psychiatric diagnostic evaluation with medical services 22 22 $198
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 13 12 $24
99215 Established patient office or other outpatient visit, 40-54 minutes 12 11 $183

In context: peer comparison

Among 1 peers in Red Bluff Psychiatry Physician, average services per provider: 74. This provider delivers 6.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,930
Patients
325
Total drug cost
$848,022
Drug Type Claims Patients Total cost
Lithium Carbonate Generic 264 37 $1,895
Olanzapine Generic 160 29 $15,205
Quetiapine Fumarate Generic 160 29 $6,125
Hydroxyzine Pamoate Generic 136 31 $2,552
Benztropine Mesylate Generic 135 19 $2,075
Trazodone Hcl Generic 126 27 $1,771
Abilify Maintena (Aripiprazole) Brand 121 14 $347,890
Lamotrigine Generic 121 24 $3,712
Risperidone Generic 121 17 $2,989
Invega Sustenna (Paliperidone Palmitate) Brand 119 15 $393,145

Frequently asked questions

Auto-generated from federal data
What is Dr. Peter Cotsirilos's medical specialty?
Dr. Peter Cotsirilos practices Psychiatry Physician in Red Bluff, CA.
Where does Dr. Peter Cotsirilos practice?
Dr. Peter Cotsirilos practices at 925 Walnut St, Red Bluff, CA 960803707. Office phone: 5305677300.
What is Dr. Peter Cotsirilos's NPI?
Dr. Peter Cotsirilos's National Provider Identifier (NPI) is 1235378621, issued by NPPES.
Does Dr. Peter Cotsirilos accept Medicare assignment?
Yes. Dr. Peter Cotsirilos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Cotsirilos commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99212); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.