ERIN ANNE BERNTSEN ACNP
NPI 1205640489
Nurse Practitioner - Acute Care in Fairfield, CA
About Erin Anne Berntsen Acnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIN ANNE BERNTSEN ACNP (NPI 1205640489) is an individual acute care provider in Fairfield, California, licensed in California (95033845) and active in the NPI registry since February 2025. She is enrolled in Medicare PECOS and is a graduate of University Of South Alabama College Of Medicine (2024).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Erin Anne Berntsen Acnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94533 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.
FAIRFIELD, CA 94533
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 Erin Berntsen's NPI number?
The NPI number for Erin Berntsen is 1205640489. It was assigned to this individual provider in the NPPES registry on February 6, 2025. The provider is also known as Erin Anne Gilles.
Where is Erin Berntsen located?
Erin Berntsen practices at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. The listed phone number is (707) 646-5031.
What is Erin Berntsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Erin Berntsen enrolled in Medicare?
Yes. Erin Berntsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Erin Berntsen was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 days 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.
# Erin Anne Berntsen, ACNP · NPI 1205640489
Acute Care physician in Fairfield, California. Individual provider, active in the CMS NPPES registry since February 6, 2025.
## Identity
- **NPI:** 1205640489 (Entity type: Individual)
- **Enumerated:** February 6, 2025
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 95033845 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1200 B GALE WILSON BLVD, Fairfield, CA 94533-3587
- **Phone:** (707) 646-5031
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of South Alabama College Of Medicine, class of 2024
## Record status
- **NPPES last updated:** July 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1205640489) · Data from the CMS NPPES public registry.