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BRETT WILLIAM GEEVER MD
NPI 1780260638
Anesthesiology in Janesville, WI

Active since March 22, 2021PECOS EnrolledAccepts Medicare Assignment
1000 MINERAL POINT AVE, JANESVILLE, WI 53548(608) 756-6000 Get Directions Write a Review

NPPES record last updated: July 7, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 7, 2025, Jun 24, 2025, May 9, 2022 and 2 more (5 updates tracked since 2021).

About Brett William Geever Md NPPES

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

BRETT WILLIAM GEEVER MD (NPI 1780260638) is an individual anesthesiology provider in Janesville, Wisconsin, licensed in Illinois (125078596) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Mercy Health System Corp, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1780260638
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameBRETT WILLIAM GEEVERCredential: MD
Location Address1000 MINERAL POINT AVEJanesville, WI 53548-2940
Mailing Address1000 Mineral Point AveJanesville, WI 53548-2940 · (608) 756-6000
Phone(608) 756-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 22, 2021
Last NPPES UpdateJuly 7, 20255 updates tracked since enumeration
NPPES CertifiedJuly 7, 2025
✔ NPI 1780260638 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 125078596
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1000 MINERAL POINT AVE, Janesville, WI 53548
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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

Brett William Geever Md 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 ID143622563
PECOS Enrollment IDI20250715003500
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 Brett Geever reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Health System Corporation
0.1 mi
Mental Health (Including Community Mental Health Center)
903 MINERAL POINT AVE
Janesville, WI 53548
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,155 clinicians in this Medicare group
NPI 1669685129 (608) 756-5555

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercy Health System Corp

Acute Care Hospitals · Janesville, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520066
Location1000 Mineral Point AveJanesville, WI 53548 · Rock County
Emergency services Birthing friendly

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.

BENJAMIN C. MILLER PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6508
KARINA LAURA PAULIUS QUINN MD
Plastic Surgery
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6000
ALESIA L DRAKE DPT, PT
Physical Therapist
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6842
PAULINE R CASS PHARMD
Pharmacist
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6000
KAREN SAUNDERS OT
Occupational Therapist
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6000
DR. MERLE S RUST MD
Neurological Surgery
1000 MINERAL POINT AVE, MERCY WEST NEUROSURGERY
JANESVILLE, WI 53548
Rock County (608) 756-6826
DR. MICHAEL V COOGAN MD
Emergency Medicine (Medical Toxicology)
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6000
CHRISTOPHER B GOODAVISH PA
Physician Assistant
1000 MINERAL POINT AVE
JANESVILLE, WI 53548
Rock County (608) 756-6868

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 Brett Geever's NPI number?

The NPI number for Brett Geever is 1780260638. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Brett Geever located?

Brett Geever practices at 1000 Mineral Point Ave, Janesville, WI 53548. The listed phone number is (608) 756-6000.

What is Brett Geever's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Brett Geever enrolled in Medicare?

Yes. Brett Geever 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 organization bills Medicare for Brett Geever's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brett Geever reassigns Medicare benefits to Mercy Health System Corporation (Janesville, WI). 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 Brett Geever's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Brett Geever affiliated with any hospitals?

According to CMS data, Brett Geever is affiliated with Mercy Health System Corp.

When was this NPI record last updated?

The NPPES record for Brett Geever was last updated on July 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.