1. Home
  2. Directory
  3. California
  4. Eureka
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIEL BOSSERMAN ARNP
NPI 1548610934
Nurse Practitioner - Psychiatric/Mental Health in Eureka, CA

Active since June 15, 2016PECOS Enrolled
100 H ST STE 212, EUREKA, CA 95501(707) 390-0393(707) 440-1524 Get Directions Write a Review

NPPES record last updated: September 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 9, 2026, Jun 15, 2016 (2 updates tracked since 2016).

About Mariel Bosserman Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIEL BOSSERMAN ARNP (NPI 1548610934) is an individual psychiatric/mental health provider in Eureka, California, licensed in California (95003971) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1548610934
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARIEL BOSSERMANCredential: ARNP
Location Address100 H ST STE 212Eureka, CA 95501-0481
Mailing Address100 H St Ste 212Eureka, CA 95501-0481 · (707) 390-0393
Phone(707) 390-0393
Fax(707) 440-1524
Sole ProprietorNo
Enumeration DateJune 15, 2016
Last NPPES UpdateSeptember 9, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2026
✔ NPI 1548610934 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · 95003971
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 95003971 (CA)
100 H ST STE 212, Eureka, CA 95501
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mariel Bosserman Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mariel Bosserman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Open Door Community Health Centers
4.5 mi
Federally Qualified Health Center (FQHC)
1644 CENTRAL AVENUE, SUITE F
Mckinleyville, CA 95519
  • Reassigned Medicare billing, California enrollment
  • 175 clinicians in this Medicare group
NPI 1598858169 (707) 839-3068

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95501 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Mariel Bosserman's NPI number?

The NPI number for Mariel Bosserman is 1548610934. It was assigned to this individual provider in the NPPES registry on June 15, 2016.

Where is Mariel Bosserman located?

Mariel Bosserman practices at 100 H St Ste 212, Eureka, CA 95501. The listed phone number is (707) 390-0393.

What is Mariel Bosserman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Mariel Bosserman enrolled in Medicare?

Yes. Mariel Bosserman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mariel Bosserman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mariel Bosserman reassigns Medicare benefits to Open Door Community Health Centers (Mckinleyville, CA). The 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 Mariel Bosserman'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 Mariel Bosserman was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 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.