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MR. CHASE MICHAEL ISENBERGER PA
NPI 1891497020
Physician Assistant in Janesville, WI

Active since March 21, 2023PECOS EnrolledAccepts Medicare Assignment
1000 MINERAL POINT AVE, JANESVILLE, WI 53548(608) 756-6868 Get Directions Write a Review

NPPES record last updated: August 6, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 6, 2025, Apr 24, 2024, Mar 21, 2023 (3 updates tracked since 2023).

About Mr. Chase Michael Isenberger Pa NPPES

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

MR. CHASE MICHAEL ISENBERGER PA (NPI 1891497020) is an individual physician assistant in Janesville, Wisconsin, licensed in Illinois (085010417) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with Saint Anthony Medical Center, and maintains a secondary practice location in White Bluff.

NPPES Registry Identity

NPI1891497020
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMR. CHASE MICHAEL ISENBERGERCredential: PA
Location Address1000 MINERAL POINT AVEJanesville, WI 53548-2940
Mailing Address538 Old Highway 70 4White Bluff, TN 37187-4703 · (608) 290-8189
Phone(608) 756-6868
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMarch 21, 2023
Last NPPES UpdateAugust 6, 20253 updates tracked since enumeration
NPPES CertifiedAugust 6, 2025
✔ NPI 1891497020 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in IL · 085010417
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1000 MINERAL POINT AVE, Janesville, WI 53548
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Secondary Practice Location 1

Location 1538 Old Highway 70 4White Bluff, TN 37187-4703 · Phone (608) 290-8189

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include MercyCare Health Plans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Chase Michael Isenberger Pa 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 ID648610246
PECOS Enrollment IDI20250815004077
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.

Hospital Affiliations CMS Care Compare 2

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

Saint Anthony Medical Center

Acute Care Hospitals · Rockford, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140233
Location5666 East State StreetRockford, IL 61108 · Winnebago County
Emergency services Birthing friendly

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53548 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
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
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 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 Chase Isenberger's NPI number?

The NPI number for Chase Isenberger is 1891497020. It was assigned to this individual provider in the NPPES registry on March 21, 2023.

Where is Chase Isenberger located?

Chase Isenberger practices at 1000 Mineral Point Ave, Janesville, WI 53548. The listed phone number is (608) 756-6868.

What is Chase Isenberger's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Chase Isenberger enrolled in Medicare?

Yes. Chase Isenberger 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.

What insurance does Chase Isenberger accept?

Health plans from MercyCare Health Plans list Chase Isenberger 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.

Is Chase Isenberger affiliated with any hospitals?

According to CMS data, Chase Isenberger is affiliated with Saint Anthony Medical Center and Mercy Health System Corp.

When was this NPI record last updated?

The NPPES record for Chase Isenberger was last updated on August 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.