Dennis Alfaro, M.D.
NPI 1407847718 · Emergency Medicine Physician · Pleasanton, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Alfaro, M.D. is a Emergency Medicine Physician provider in Pleasanton, CA (NPI 1407847718).
Provider details
- NPI number
- 1407847718
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G67215 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
939 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 238 | $8 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 188 | $176 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 181 | $122 |
| Critical Care, First 30-74 Minutes99291 | 181 | $216 |
| Critical Care, Each Additional 30 Minutes99292 | 78 | $109 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 53 | $7 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 75 | 69 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 55 | 55 |
| Cephalexin | 46 | 43 |
| Prednisone | 42 | 37 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 40 | 36 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 26 | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-04
- Last updated
- 2014-07-14
Frequently asked questions
- What is Dennis Alfaro's NPI number?
- Dennis Alfaro's National Provider Identifier (NPI) is 1407847718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Alfaro's specialty?
- Dennis Alfaro is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Alfaro located?
- Dennis Alfaro's practice location on file with NPPES is 5555 W Las Positas Blvd, Pleasanton, CA 94588-4000.
- What is Dennis Alfaro's phone number?
- The practice phone number listed in the NPPES registry for Dennis Alfaro is (209) 342-2300.
- Does Dennis Alfaro accept Medicare?
- Dennis Alfaro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Alfaro's NPI active?
- Yes — Dennis Alfaro's NPI (1407847718) is active in the NPPES registry as of the last update on 2014-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.