Doctor profile · Federal record

Dr. Dennis Alfaro, M.D.

Emergency Medicine Physician · Pleasanton, CA

  • NPI 1407847718
  • 21 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5555 W Las Positas Blvd
Pleasanton, CA 945884000
(209) 342-2300
fax (209) 524-4240
Mailing address
4301 Northstar Way
Modesto, CA 953569262

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
July 14, 2014
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #G67215
Medicaid
CA #00G672150

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1407847718. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
663
Distinct HCPCS
6
Medicare allowed
$88,547
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 215 203 $119
99285 Emergency department visit with high level of medical decision making 211 186 $173
99291 Critical care, first 30-74 minutes 103 98 $211
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 89 79 $8
99292 Critical care, each additional 30 minutes 25 23 $106
99283 Emergency department visit with low level of medical decision making 20 20 $71

In context: peer comparison

Among 10 peers in this city , average services per provider: 93. This provider delivers 7.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
356
Patients
347
Total drug cost
$3,546
Drug Type Claims Patients Total cost
Ondansetron Odt (Ondansetron) Brand 74 73 $358
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 65 64 $393
Prednisone Generic 34 33 $147
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 31 30 $1,152
Cephalexin Generic 29 28 $399
Dicyclomine Hcl Generic 27 24 $190
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 18 18 $112
Lansoprazole Generic 16 16 $391
Azithromycin Generic 15 15 $62
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 12 12 $148

Frequently asked questions

Auto-generated from federal data
What is Dr. Dennis Alfaro's medical specialty?
Dr. Dennis Alfaro practices Emergency Medicine Physician in Pleasanton, CA.
Where does Dr. Dennis Alfaro practice?
Dr. Dennis Alfaro practices at 5555 W Las Positas Blvd, Pleasanton, CA 945884000. Office phone: 2093422300.
What is Dr. Dennis Alfaro's NPI?
Dr. Dennis Alfaro's National Provider Identifier (NPI) is 1407847718, issued by NPPES.
What procedures does Dr. Dennis Alfaro 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.