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GREGORY R TROST MD
NPI 1922074947
Neurological Surgery in Middleton, WI

Active since February 28, 2006PECOS EnrolledAccepts Medicare Assignment
9701 TRAPPERS TRL, MIDDLETON, WI 53562(608) 203-6321 Get Directions Write a Review

NPPES record last updated: March 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 4, 2026, Jan 19, 2021, Sep 29, 2015 (3 updates tracked since 2015).

About Gregory R Trost Md NPPES

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

GREGORY R TROST MD (NPI 1922074947) is an individual neurological surgery provider in Middleton, Wisconsin, licensed in Wisconsin (30533) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Wi Hospitals & Clinics Authority, and is a graduate of University Of Wisconsin School Of Medicine (1988).

NPPES Registry Identity

NPI1922074947
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameGREGORY R TROSTCredential: MD
Location Address9701 TRAPPERS TRLMiddleton, WI 53562-5061
Mailing Address9701 Trappers TrlMiddleton, WI 53562-5061 · (608) 203-6321
Phone(608) 203-6321
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 1988
Enumeration DateFebruary 28, 2006
Last NPPES UpdateMarch 4, 20263 updates tracked since enumeration
NPPES CertifiedMarch 4, 2026
✔ NPI 1922074947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in WI · 30533
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
9701 TRAPPERS TRL, Middleton, WI 53562
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Quartz 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

Gregory R Trost 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 ID8729157896
PECOS Enrollment IDI20080515000042
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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
26 services26 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
26 services16 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
24 services23 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
19 services19 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

University Of Wi Hospitals & Clinics Authority

Acute Care Hospitals · Madison, WI
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number520098
Location600 Highland AvenueMadison, WI 53792 · Dane County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53562 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
$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.

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 Gregory Trost's NPI number?

The NPI number for Gregory Trost is 1922074947. It was assigned to this individual provider in the NPPES registry on February 28, 2006.

Where is Gregory Trost located?

Gregory Trost practices at 9701 Trappers Trl, Middleton, WI 53562. The listed phone number is (608) 203-6321.

What is Gregory Trost's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Gregory Trost enrolled in Medicare?

Yes. Gregory Trost 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 Gregory Trost accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Quartz and Security Health Plan list Gregory Trost 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 Gregory Trost affiliated with any hospitals?

According to CMS data, Gregory Trost is affiliated with University Of Wi Hospitals & Clinics Authority.

When was this NPI record last updated?

The NPPES record for Gregory Trost was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.