Doctor profile · Federal record

Dr. Jose Diaz, M.D.

Emergency Medicine Physician · Chino, CA

  • NPI 1306880836
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
5451 Walnut Ave
Chino, CA 917102609
(909) 464-8667
Additional location
7720 Rancho Santa Fe RD, #225
Carlsbad, CA 92009
(626) 524-3865
Mailing address
147 W Route 66 # 650
Glendora, CA 917406208

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
November 16, 2022
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A64744
Medicaid
CA #00A647440

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1306880836. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
261
Distinct HCPCS
5
Medicare allowed
$29,384
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 76 74 $123
99285 Emergency department visit with high level of medical decision making 67 65 $182
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 62 59 $9
99291 Critical care, first 30-74 minutes 32 32 $222
71045 X-ray of chest, 1 view 24 24 $9

In context: peer comparison

Among 8 peers in Chino Emergency Medicine Physician, average services per provider: 175. This provider delivers 1.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
157
Patients
150
Total drug cost
$730
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 69 65 $152
Naproxen Generic 34 32 $124
Prednisone Generic 22 22 $46
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 17 16 $307
Cephalexin Generic 15 15 $101

Frequently asked questions

Auto-generated from federal data
What is Dr. Jose Diaz's medical specialty?
Dr. Jose Diaz practices Emergency Medicine Physician in Chino, CA.
Where does Dr. Jose Diaz practice?
Dr. Jose Diaz practices at 5451 Walnut Ave, Chino, CA 917102609. Office phone: 9094648667.
What is Dr. Jose Diaz's NPI?
Dr. Jose Diaz's National Provider Identifier (NPI) is 1306880836, issued by NPPES.
What procedures does Dr. Jose Diaz commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.