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BRETT T MITTELSTEDT
NPI 1134878903
Internal Medicine in Summit, WI

Active since March 21, 2022PECOS EnrolledAccepts Medicare Assignment
36500 AURORA DR, SUMMIT, WI 53066(262) 434-1000 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 11, 2025, May 7, 2024 (2 updates tracked since 2024).

About Brett T Mittelstedt NPPES

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

BRETT T MITTELSTEDT (NPI 1134878903) is an individual internal medicine provider in Summit, Wisconsin, licensed in Wisconsin (81460-21) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Aurora Medical Center - Summit, and maintains a secondary practice location in Milwaukee.

NPPES Registry Identity

NPI1134878903
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBRETT T MITTELSTEDT
Location Address36500 AURORA DRSummit, WI 53066-4899
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(262) 434-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateMarch 21, 2022
Last NPPES UpdateAugust 11, 20252 updates tracked since enumeration
NPPES CertifiedAugust 11, 2025
✔ NPI 1134878903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 81460-21
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
36500 AURORA DR, Summit, WI 53066
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Secondary Practice Location 1

Location 1945 N 12th StMilwaukee, WI 53233-1305 · Phone (414) 219-7427

Other Identifiers 1

Medicaid100334598WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.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

Brett T Mittelstedt 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 ID2163921024
PECOS Enrollment IDI20250818002257
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

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

Aurora Medical Center - Summit

Acute Care Hospitals · Summit, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520206
Location36500 Aurora DriveSummit, WI 53066 · Waukesha County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53066 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
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 20

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

BIJAN NEZAMI
Internal Medicine (Critical Care Medicine)
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
KEVIN L EGGLESTON M.D.
Hospitalist
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-4711
KODY LEWIS PA C
Physician Assistant
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
REBECCA M STRIET M.D.
Preventive Medicine (Undersea and Hyperbaric Medicine)
36500 AURORA DR, DEPARTMENT OF WOUND CARE/HYPERBARIC MEDICINE 3RD FLOOR
SUMMIT, WI 53066
Waukesha County (262) 434-5000
REBECCA SUSA DPT, ATC-L
Physical Therapist
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-2600
VIJAY JOHNSON M.D
Internal Medicine (Critical Care Medicine)
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
MRS. KELLY S CAMPBELL ANP-BC
Nurse Practitioner
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
DR. BRETT MCLACHLAN M.D.
Emergency Medicine
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000

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 Mittelstedt's NPI number?

The NPI number for Brett Mittelstedt is 1134878903. It was assigned to this individual provider in the NPPES registry on March 21, 2022.

Where is Brett Mittelstedt located?

Brett Mittelstedt practices at 36500 Aurora Dr, Summit, WI 53066. The listed phone number is (262) 434-1000.

What is Brett Mittelstedt's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Brett Mittelstedt enrolled in Medicare?

Yes. Brett Mittelstedt 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 Brett Mittelstedt accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Quartz list Brett Mittelstedt 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 Brett Mittelstedt affiliated with any hospitals?

According to CMS data, Brett Mittelstedt is affiliated with Aurora Medical Center - Summit.

When was this NPI record last updated?

The NPPES record for Brett Mittelstedt was last updated on August 11, 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.