Phuong Nam N. Giang, MD

Medicare activity in 2024

Official CMS public-use data for Phuong Nam N. Giang, 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.

Most frequent services

1. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)162 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)21 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%
• Arthritis58%
• Chronic kidney disease54%
• Ischemic heart disease53%
• Heart failure48%

Hospitals where Phuong Nam N. Giang works

Medicare's Facility Affiliation Data lists Phuong Nam N. Giang 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.

• Inova Alexandria HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490040
• Inova Fair Oaks HospitalFairfax, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 490101
• Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
• Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490043

Practice locations

Addresses where Phuong Nam N. Giang is enrolled with Medicare (CMS data updated October 2, 2026).

• 3300 Gallows RdFalls Church, VA 22042

Group practices

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

• Inova Health Care Services1,817 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Virginia →

Other internal medicine doctors in Falls Church

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

• Ellen K. Sternenberger, MD
• Camvan N. Ton, MD
• Ali Shahcheraghi, MD
• Nick M. Pham, MD
• Alejandro Santos Leal, MD
• Aruna Phayal, MD
• Anne W. Brown, MD
• Fatima Z. Aziz-Ashraf, MD

All internal medicine doctors in Falls Church →

Other clinicians in Inova Health Care Services

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

• Sabih R. Khan
• Joanna Y. Wang, MD
• Dina Tabello, DO
• Courtney B. Alesandro, NP
• Varin C. Bird, PA
• Alata R. Warner, NP

Clinician information

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