ALVARO F. HIDALGO MD
NPI 1942352166
Emergency Medicine in Vallejo, CA
About Alvaro F. Hidalgo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALVARO F. HIDALGO MD (NPI 1942352166) is an individual emergency medicine provider in Vallejo, California, licensed in California (A75887) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alvaro F. Hidalgo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Alvaro Hidalgo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Placerville, CA 95667
- Reassigned Medicare billing, California enrollment
- 40 clinicians in this Medicare group
Pinon, AZ 86510
- Reassigned Medicare billing, Texas enrollment
- 476 clinicians in this Medicare group
Rockville, MD 20850
- Reassigned Medicare billing, Virginia enrollment
- 158 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94589 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VALLEJO, CA 94589
VALLEJO, CA 94589
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Alvaro Hidalgo's NPI number?
The NPI number for Alvaro Hidalgo is 1942352166. It was assigned to this individual provider in the NPPES registry on January 17, 2007.
Where is Alvaro Hidalgo located?
Alvaro Hidalgo practices at 975 Sereno Dr, Vallejo, CA 94589. The listed phone number is (707) 651-1000.
What is Alvaro Hidalgo's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alvaro Hidalgo enrolled in Medicare?
Yes. Alvaro Hidalgo is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alvaro Hidalgo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alvaro Hidalgo reassigns Medicare benefits to 4 organizations: Permanente Medical Group Inc (Vallejo, CA), Emergency Medicine Physician Partners Of El Dorado County, Inc (Placerville, CA), Dhhs Phs Naihs Chinle Comprehensive Health Care Facility (Pinon, AZ) and Mep Health, LLC (Rockville, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alvaro Hidalgo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Alvaro Hidalgo was last updated on December 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Alvaro F. Hidalgo, MD · NPI 1942352166
Emergency Medicine physician in Vallejo, California. Individual provider, active in the CMS NPPES registry since January 17, 2007.
## Identity
- **NPI:** 1942352166 (Entity type: Individual)
- **Enumerated:** January 17, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A75887 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 975 SERENO DR, Vallejo, CA 94589-2441
- **Phone:** (707) 651-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA); Emergency Medicine Physician Partners Of El Dorado County, Inc (NPI 1619278660, Placerville, CA); Dhhs Phs Naihs Chinle Comprehensive Health Care Facility (NPI 1396761565, Pinon, AZ); Mep Health, LLC (NPI 1164483558, Rockville, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 29, 2023
- **Other identifiers:** Medicaid 00A758870 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1942352166) · Data from the CMS NPPES public registry.