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

Urology

Brett F. Holt, MD

Works at hospitals in Alexandria, VA · Fairfax, VA · Falls Church, VA … · Virginia

Summary

Dr. Brett F. Holt, MD is a urologist at 3300 Gallows Rd, Falls Church, VA 22042. Accepts Medicare assignment. In 2024, Brett F. Holt had 760 Original Medicare patients and 3,032 services. NPI 1609011329. 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 Brett F. Holt, 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 Brett F. Holt accept Medicare assignment?
Yes. Medicare's clinician data says Brett F. Holt 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 Brett F. Holt see?
In 2024, CMS data shows 760 Original Medicare patients and 3,032 services for Brett F. Holt. This counts Original Medicare only and measures volume, not quality.
What is Brett F. Holt's NPI number?
1609011329. 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 Brett F. Holt, 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 patients760
Services billed to Medicare3,032
Different services or procedures64
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Bcg live intravesical instillation, 1 mg (J9030)1,322 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)723 services
  3. Diagnostic exam of bladder and urethra using an endoscope (52000)129 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)111 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)58 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%
  • Arthritis44%
  • Ischemic heart disease37%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)33%
  • Diabetes31%

Hospitals where Brett F. Holt works

Medicare's Facility Affiliation Data lists Brett F. Holt 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 Brett F. Holt is enrolled with Medicare (CMS data updated October 2, 2026).

  • 3300 Gallows RdFalls Church, VA 22042
  • 8081 Innovation Park DrFairfax, VA 22031

Group practices

Medicare enrollment lists Brett F. Holt as a member of this group (CMS data updated October 2, 2026).

  • Inova Health Care Services1,817 clinicians in the group

Specialties

Find other Urology doctors in Virginia →

Other urologists in Falls Church

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

All urologists in Falls Church →

Other clinicians in Inova Health Care Services

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

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2006 (20 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1609011329
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