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REBECCA K. GRUBER NP
NPI 1740578475
Nurse Practitioner in Eau Claire, WI

Active since July 15, 2011PECOS EnrolledAccepts Medicare Assignment
3300 BIRCH ST STE 3B, EAU CLAIRE, WI 54703(715) 229-5550(715) 229-5551 Get Directions Write a Review

NPPES record last updated: November 25, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 25, 2025, Mar 29, 2021 (2 updates tracked since 2021).

About Rebecca K. Gruber Np NPPES

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

REBECCA K. GRUBER NP (NPI 1740578475) is an individual nurse practitioner in Eau Claire, Wisconsin, licensed in Minnesota (6486) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS, maintains a secondary practice location in Saint Paul, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1740578475
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameREBECCA K. GRUBERCredential: NP
Location Address3300 BIRCH ST STE 3BEau Claire, WI 54703-2297
Mailing Address3300 Birch St Ste 3bEau Claire, WI 54703-2297 · (715) 229-5550 · Fax (715) 229-5551
Phone(715) 229-5550
Fax(715) 229-5551
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateJuly 15, 2011
Last NPPES UpdateNovember 25, 20252 updates tracked since enumeration
NPPES CertifiedNovember 25, 2025
✔ NPI 1740578475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
Licenses✔ Licensed in MN · 6486✔ Licensed in WI · 4441
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
3300 BIRCH ST STE 3B, Eau Claire, WI 54703
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Secondary Practice Location 1

Location 1445 Etna St Ste 44ASaint Paul, MN 55106-5848 · Phone (651) 442-8881

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Rebecca K. Gruber Np 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.

PECOS PAC ID4183892730
PECOS Enrollment IDI20190509001474
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 Reassignments

3

Medicare enrollment records show Rebecca Gruber reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Affirmation Health, LLC
78 mi
Adult Health
445 ETNA ST STE 44A
Saint Paul, MN 55106
  • Reassigned Medicare billing, Minnesota enrollment
  • 5 clinicians in this Medicare group
NPI 1841973690 (651) 422-8881
Open Door Health Center
100 mi
Federally Qualified Health Center (FQHC)
1617 WESTON CT STE 200
Shakopee, MN 55379
  • Reassigned Medicare billing, Minnesota enrollment
  • 23 clinicians in this Medicare group
NPI 1114446283 (952) 492-6342
Signify Health Medical Associates, PLLC
870 mi
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Wisconsin enrollment
  • 303 clinicians in this Medicare group
NPI 1750845863 (972) 715-3800

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 54703 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
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.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. GREGORY ALLEN HABBEN DDS
Dentist (General Practice)
3300 BIRCH ST STE 3B
EAU CLAIRE, WI 54703
Eau Claire County (715) 835-1233
ACHIEVE HEALTH- EAU CLAIRE
Clinic/Center (Primary Care)
3300 BIRCH ST STE 3B
EAU CLAIRE, WI 54703
Eau Claire County (715) 832-9467

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 Rebecca Gruber's NPI number?

The NPI number for Rebecca Gruber is 1740578475. It was assigned to this individual provider in the NPPES registry on July 15, 2011.

Where is Rebecca Gruber located?

Rebecca Gruber practices at 3300 Birch St Ste 3B, Eau Claire, WI 54703. The listed phone number is (715) 229-5550.

What is Rebecca Gruber's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Rebecca Gruber enrolled in Medicare?

Yes. Rebecca Gruber 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.

Which organizations bill Medicare for Rebecca Gruber's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Gruber reassigns Medicare benefits to 3 organizations: Affirmation Health, LLC (Saint Paul, MN), Open Door Health Center (Shakopee, MN) and Signify Health Medical Associates, PLLC (Dallas, TX). 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 Rebecca Gruber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rebecca Gruber accept?

Health plans from HealthPartners list Rebecca Gruber as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rebecca Gruber was last updated on November 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.