Alvaro Hidalgo, MD
NPI 1942352166 · Emergency Medicine Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alvaro Hidalgo, MD is a Emergency Medicine Physician provider in Vallejo, CA (NPI 1942352166).
Provider details
- NPI number
- 1942352166
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A75887 (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
19 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
67 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) |
|---|---|---|
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 31 | $68 |
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 21 | $40 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 15 | $8 |
Typical Medicare-allowed amounts for these services range $8–$68 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-17
- Last updated
- 2023-12-29
- Certified
- 2023-12-29
Frequently asked questions
- What is Alvaro Hidalgo's NPI number?
- Alvaro Hidalgo's National Provider Identifier (NPI) is 1942352166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alvaro Hidalgo's specialty?
- Alvaro Hidalgo is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alvaro Hidalgo located?
- Alvaro Hidalgo's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is Alvaro Hidalgo's phone number?
- The practice phone number listed in the NPPES registry for Alvaro Hidalgo is (707) 651-1000.
- Does Alvaro Hidalgo accept Medicare?
- Alvaro Hidalgo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alvaro Hidalgo's NPI active?
- Yes — Alvaro Hidalgo's NPI (1942352166) is active in the NPPES registry as of the last update on 2023-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.