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Physician Assistant

Kathryn J. Milizio, PA

Works at hospitals in Longmont, CO · Loveland, CO · Fort Collins, CO … · Colorado

Summary

Kathryn J. Milizio, PA is a physician assistant at 4404 Barranca Ln, Unit 101, Castle Rock, CO 80104. Phone: (720) 733-5260. Accepts Medicare assignment. In 2024, Kathryn J. Milizio had 401 Original Medicare patients and 1,040 services. NPI 1023560034. 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 Kathryn J. Milizio, 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 Kathryn J. Milizio accept Medicare assignment?
Yes. Medicare's clinician data says Kathryn J. Milizio 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 Kathryn J. Milizio see?
In 2024, CMS data shows 401 Original Medicare patients and 1,040 services for Kathryn J. Milizio. This counts Original Medicare only and measures volume, not quality.
What is Kathryn J. Milizio's NPI number?
1023560034. 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 Kathryn J. Milizio, 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 patients401
Services billed to Medicare1,040
Different services or procedures29
Participating Medicare providerYes
Average age of these patients76

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)467 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)112 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)102 services
  4. Hemoglobin a1c level (83036)79 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)63 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 blood pressure75%
  • High cholesterol75%
  • Arthritis61%
  • Depression31%
  • Diabetes29%
  • Ischemic heart disease28%

Hospitals where Kathryn J. Milizio works

Medicare's Facility Affiliation Data lists Kathryn J. Milizio 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 Kathryn J. Milizio is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kathryn J. Milizio as a member of these groups (CMS data updated October 2, 2026).

  • Poudre Valley Medical Group LLC2,440 clinicians in the group
  • Select Physical Therapy of West Denver Limited Partnership548 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Colorado →

Other physician assistants in Castle Rock

Clinicians with the same Medicare primary specialty in Castle Rock, CO — not a recommendation.

All physician assistants in Castle Rock →

Other clinicians in Poudre Valley Medical Group LLC

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

Clinician information

CredentialPA
Graduation year2016
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1023560034
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