Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Kelly A. Armstrong, NP

Works at hospitals in Tomball, TX · Texas

Summary

Kelly A. Armstrong, NP is a nurse practitioner at 605 Holderrieth Blvd, Tomball, TX 77375. Phone: (281) 351-1623. Accepts Medicare assignment. In 2024, Kelly A. Armstrong had 69 Original Medicare patients and 93 services. NPI 1053996488. 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: 605 Holderrieth Blvd, Tomball, TX 77375 · Directions (1 more location)
  • Phone: (281) 351‑1623
  • Medicare: Accepts Medicare assignment
  • Hospital: HCA Houston Healthcare Tomball
  • Group practice: Intensivist Medicine Services of TX, PLLC
  • School: graduated 2020
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kelly A. Armstrong, 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 Kelly A. Armstrong accept Medicare assignment?
Yes. Medicare's clinician data says Kelly A. Armstrong 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 Kelly A. Armstrong see?
In 2024, CMS data shows 69 Original Medicare patients and 93 services for Kelly A. Armstrong. This counts Original Medicare only and measures volume, not quality.
What is Kelly A. Armstrong's NPI number?
1053996488. 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 Kelly A. Armstrong, 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 patients69
Services billed to Medicare93
Different services or procedures11
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Critical care, first 30-74 minutes (99291)41 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)16 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%
  • Ischemic heart disease67%
  • Heart failure65%
  • Diabetes62%
  • Chronic kidney disease58%

Hospitals where Kelly A. Armstrong works

Medicare's Facility Affiliation Data lists Kelly A. Armstrong 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 Kelly A. Armstrong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kelly A. Armstrong as a member of this group (CMS data updated October 2, 2026).

  • Intensivist Medicine Services of TX, PLLC35 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Texas →

Other nurse practitioners in Tomball

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

All nurse practitioners in Tomball →

Other clinicians in Intensivist Medicine Services of TX, PLLC

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

Clinician information

CredentialNP
Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053996488
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