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Physician Assistant

Julia R. Tremillo

Works at hospitals in Appleton, WI · Neenah, WI · Wisconsin

Summary

Julia R. Tremillo is a physician assistant at 333 N Green Bay Rd, Neenah, WI 54956. Phone: (920) 738-4800. Accepts Medicare assignment. In 2024, Julia R. Tremillo had 110 Original Medicare patients and 271 services. NPI 1467947937. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Julia R. Tremillo, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Julia R. Tremillo accept Medicare assignment?
Yes. Medicare's clinician data says Julia R. Tremillo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Julia R. Tremillo see?
In 2024, CMS data shows 110 Original Medicare patients and 271 services for Julia R. Tremillo. This counts Original Medicare only and measures volume, not quality.
What is Julia R. Tremillo's NPI number?
1467947937. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Julia R. Tremillo, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients110
Services billed to Medicare271
Different services or procedures34
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)51 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)36 services
  3. Blood test, basic group of blood chemicals (calcium, total) (80048)23 services
  4. Insertion of needle into vein for collection of blood sample (36415)22 services
  5. X-ray of chest, 2 views (71046)20 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol72%
  • High blood pressure63%
  • Arthritis49%
  • Anxiety27%
  • Diabetes24%
  • Depression23%

Hospitals where Julia R. Tremillo works

Medicare's Facility Affiliation Data lists Julia R. Tremillo at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Julia R. Tremillo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Julia R. Tremillo as a member of this group (CMS data updated October 2, 2026).

  • Thedacare, Incorporated647 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Wisconsin →

Other physician assistants in Neenah

Clinicians with the same Medicare primary specialty in Neenah, WI — not a recommendation.

All physician assistants in Neenah →

Other clinicians in Thedacare, Incorporated

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467947937
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians