Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Erin Anne Berntsen, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1205640489

Erin Anne Berntsen, ACNP is a Nurse Practitioner in Fairfield, California. Graduated from University of South Alabama College of Medicine in 2024, 2 years ago. Practices with Northbay Physicians Surgery Center, LLC, a 337-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
2
Trained at
University of South Alabama College of Medicine
Licensed in
CA
In the registry since
2025
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

Practice location Address checks out

1200 B Gale Wilson Blvd
Fairfield, CA 94533-3587
Phone: (707) 646-5031
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2335 Stockton Blvd, Sacramento, CA 95817-2201 — (916) 734-6500

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 95033845 (CA)

Record details

NPI number1205640489
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedFebruary 6, 2025
Last updated in NPPESJuly 6, 2026
Certification dateJuly 6, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF SOUTH ALABAMA COLLEGE OF MEDICINE
Graduated 2024 (2 years in practice)
Group practice Northbay Physicians Surgery Center, Llc — 337 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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