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Nurse Practitioner

Tiffany N. Miller, NP

Works at hospitals in Round Rock, TX · Texas

Summary

Tiffany N. Miller, NP is a nurse practitioner at 1108 Lavaca St, Suite 110 320, Austin, TX 78701. Phone: (512) 477-4088. Accepts Medicare assignment. In 2024, Tiffany N. Miller had 173 Original Medicare patients and 965 services. NPI 1225762768. 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.

  • Specialty: Nurse practitioner
  • Address: 1108 Lavaca St, Suite 110 320, Austin, TX 78701 · Directions
  • Phone: (512) 477‑4088
  • Medicare: Accepts Medicare assignment
  • Hospital: Ascension Seton Williamson
  • Group practice: Austin Geriatric Specialists PLLC
  • School: Texas Tech University Health Science Center School Of Medicine · graduated 2022
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Tiffany N. Miller, 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 Tiffany N. Miller accept Medicare assignment?
Yes. Medicare's clinician data says Tiffany N. Miller 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 Tiffany N. Miller see?
In 2024, CMS data shows 173 Original Medicare patients and 965 services for Tiffany N. Miller. This counts Original Medicare only and measures volume, not quality.
What is Tiffany N. Miller's NPI number?
1225762768. 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 Tiffany N. Miller, 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 patients173
Services billed to Medicare965
Different services or procedures8
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Advance care planning, first 30 minutes (99497)294 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)220 services
  3. Advance care planning, each additional 30 minutes (99498)183 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)153 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)98 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 cholesterol62%
  • Heart failure45%
  • Atrial fibrillation45%
  • Alzheimer's disease or dementia45%
  • Chronic kidney disease43%

Hospitals where Tiffany N. Miller works

Medicare's Facility Affiliation Data lists Tiffany N. Miller 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 Tiffany N. Miller is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Tiffany N. Miller as a member of this group (CMS data updated October 2, 2026).

  • Austin Geriatric Specialists PLLC58 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Texas →

Other nurse practitioners in Austin

Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.

All nurse practitioners in Austin →

Other clinicians in Austin Geriatric Specialists PLLC

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

Clinician information

CredentialNP
SchoolTexas Tech University Health Science Center School Of Medicine
Graduation year2022
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225762768
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