Registry data as of Aug 27, 2026

Erin Berntsen, ACNP

Acute Care Nurse Practitioner · Fairfield, CA

Erin Berntsen, ACNP is an acute care nurse practitioner with a practice address in Fairfield, California, and NPI 1205640489, issued on Feb 6, 2025. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1205640489
Name
Erin Berntsen
Credential
ACNP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
Practice location
1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone
(707) 646-5031
Enumerated
Feb 6, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1200 B Gale Wilson Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yusuf Ahmad, MDAnesthesiology Physician1104020262
  2. Tashira AlexanderRegistered Dietitian1902732480
  3. Nail Amro, M.D.Internal Medicine Physician1861413551
  4. Allan Au, M.D.Hospitalist Physician1427495563
  5. Neeta BhasinCritical Care Pharmacist1457984882
  6. Salimah Boghani, M.DInternal Medicine Physician1689711293

Verify Erin Berntsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

One hospital or facility affiliation

  1. Northbay Physicians Surgery Center, LLCFairfield, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Acute Care Nurse Practitioner providers in California

There are 1,703 acute care nurse practitioner records in California.

All 1,703 in California → Every provider in Fairfield →

Other acute care nurse practitioner records in California

  1. Jessica AaronsonLynwood, CA1407355571
  2. Naima Abdirahman, NPLong Beach, CA1215640560
  3. Jenna Abeloe, NPVentura, CA1679090393
  4. Rhonald AbitonaSan Francisco, CA1164993473
  5. Tara Abrams, NPLos Angeles, CA1114536679
  6. Andrea Abramson, RN, CNS, NPRancho Mirage, CA1548187784
  7. Christopher Acebedo, NPSan Francisco, CA1104085109
  8. Veronica Acevedo, ACNP-BCLos Angeles, CA1588214795
  9. Mary Alice Ackerman, NP-CBeverly Hills, CA1861851958
  10. Margarita Acosta, RN, AGACNPSylmar, CA1609202415

Common questions

What is Erin Berntsen, ACNP's NPI number?

Erin Berntsen, ACNP's National Provider Identifier (NPI) is 1205640489, issued on Feb 6, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Erin Berntsen, ACNP located?

The NPPES record lists a practice address at 1200 B Gale Wilson Blvd, Fairfield, CA, 94533. Phone: (707) 646-5031. Providers update this record themselves, so call before visiting.

How can I verify Erin Berntsen, ACNP's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.