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

Physician Assistant

Regan Houston

Sees patients in Ashburn, VA · Leesburg, VA · Virginia

Summary

Regan Houston is a physician assistant at 20955 Professional Plz, Suite 200, Ashburn, VA 20147. Phone: (703) 729-7652. Accepts Medicare assignment. In 2024, Regan Houston had 138 Original Medicare patients and 332 services. NPI 1376132803. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Physician assistant
  • Address: 20955 Professional Plz, Suite 200, Ashburn, VA 20147 · Directions (1 more location)
  • Phone: (703) 729‑7652
  • Medicare: Accepts Medicare assignment
  • Group practice: Loudoun Medical Group, PC
  • School: graduated 2020
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Regan Houston, 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 Regan Houston accept Medicare assignment?
Yes. Medicare's clinician data says Regan Houston 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 Regan Houston see?
In 2024, CMS data shows 138 Original Medicare patients and 332 services for Regan Houston. This counts Original Medicare only and measures volume, not quality.
What is Regan Houston's NPI number?
1376132803. 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 Regan Houston, 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 patients138
Services billed to Medicare332
Different services or procedures25
Participating Medicare providerYes
Average age of these patients75

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)74 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)67 services
  3. Detection test by immunoassay with direct visual observation for influenza virus (87804)50 services
  4. Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)47 services
  5. Urinalysis, manual test (81002)24 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 cholesterol70%
  • High blood pressure59%
  • Arthritis49%
  • Anxiety25%
  • Osteoporosis19%
  • Ischemic heart disease17%

Practice locations

Addresses where Regan Houston is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Regan Houston as a member of this group (CMS data updated October 2, 2026).

  • Loudoun Medical Group, PC271 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Virginia →

Other physician assistants in Ashburn

Clinicians with the same Medicare primary specialty in Ashburn, VA — not a recommendation.

All physician assistants in Ashburn →

Other clinicians in Loudoun Medical Group, PC

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

Clinician information

Graduation year2020
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1376132803
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians