Tammy Nguyen, FNP
NPI 1518105212 · Family Nurse Practitioner · Falls Church, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Nguyen, FNP is a Family Nurse Practitioner provider in Falls Church, VA (NPI 1518105212).
Provider details
- NPI number
- 1518105212
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209007460 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
160 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $89 |
| Admn Sarscov2 Vacc 1 Dose90480 | 27 | $43 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 22 | $109 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $126 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 19 | $35 |
| Administration of Influenza Virus VaccineG0008 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-02-03
- Last updated
- 2021-07-08
- Certified
- 2021-07-08
Frequently asked questions
- What is Tammy Nguyen's NPI number?
- Tammy Nguyen's National Provider Identifier (NPI) is 1518105212, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Nguyen's specialty?
- Tammy Nguyen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Nguyen located?
- Tammy Nguyen's practice location on file with NPPES is 134 W Broad St, Falls Church, VA 22046-4201.
- What is Tammy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Tammy Nguyen is (703) 538-4835.
- Does Tammy Nguyen accept Medicare?
- Tammy Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Nguyen's NPI active?
- Yes — Tammy Nguyen's NPI (1518105212) is active in the NPPES registry as of the last update on 2021-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.