Doctor profile · Federal record

Dr. Patricio Chavez, M.D

Emergency Medicine Physician (CMS: Emergency Medicine) · Antioch, CA

  • NPI 1770502148
  • Accepts Medicare
  • 45 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3901 Lone Tree Way
Antioch, CA 945096200
(925) 779-7273
Mailing address
2100 Powell St, Ste 900
Emeryville, CA 946081826

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
February 4, 2008
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #G48554
Medicaid
CA #00G485540

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770502148. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
570
Distinct HCPCS
8
Medicare allowed
$65,680
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 225 208 $108
99214 Established patient office or other outpatient visit, 30-39 minutes 143 140 $152
99203 New patient office or other outpatient visit, 30-44 minutes 61 61 $132
81003 Automated urinalysis test 53 51 $2
99204 New patient office or other outpatient visit, 45-59 minutes 46 46 $197
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 18 16 $16
69210 Removal of impacted ear wax 13 13 $58
87637 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus 11 11 $130

In context: peer comparison

Among 7 peers in this city , average services per provider: 118. This provider delivers 4.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
210
Patients
206
Total drug cost
$2,138
Drug Type Claims Patients Total cost
Prednisone Generic 41 41 $146
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 41 38 $214
Cephalexin Generic 31 30 $133
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 30 30 $320
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 24 24 $745
Azithromycin Generic 16 16 $110
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 14 14 $139
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 13 13 $331

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Patricio Chavez's medical specialty?
Dr. Patricio Chavez practices Emergency Medicine Physician in Antioch, CA.
Where does Dr. Patricio Chavez practice?
Dr. Patricio Chavez practices at 3901 Lone Tree Way, Antioch, CA 945096200. Office phone: 9257797273.
What is Dr. Patricio Chavez's NPI?
Dr. Patricio Chavez's National Provider Identifier (NPI) is 1770502148, issued by NPPES.
Does Dr. Patricio Chavez accept Medicare assignment?
Yes. Dr. Patricio Chavez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patricio Chavez 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 99214); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.