William Nguyen, FNP-BC
NPI 1689316523 · Family Nurse Practitioner · Long Beach, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Nguyen, FNP-BC is a Family Nurse Practitioner provider in Long Beach, CA (NPI 1689316523).
Provider details
- NPI number
- 1689316523
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- 95020597 (CA)
Specialties & taxonomies
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
4 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
238 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 106 | $165 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $114 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 19 | $200 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 13 | $52 |
| Comprehensive Assessment of and Care Planning for Patients Requiring Chronic Care Management Services (list Separately in Addition to Primary Monthly Care Management Service)G0506 | 12 | $57 |
Typical Medicare-allowed amounts for these services range $52–$200 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 235 | 116 |
| Metformin Hcl | 208 | 102 |
| Amlodipine Besylate | 144 | 72 |
| Empagliflozinbrand: Jardiance | 110 | 39 |
| Carvedilol | 103 | 46 |
| Rosuvastatin Calcium | 99 | 51 |
| Pravastatin Sodium | 87 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,028 across 47 records (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
- 2022-04-11
- Last updated
- 2022-04-11
- Certified
- 2022-04-11
Frequently asked questions
- What is William Nguyen's NPI number?
- William Nguyen's National Provider Identifier (NPI) is 1689316523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Nguyen's specialty?
- William Nguyen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Nguyen located?
- William Nguyen's practice location on file with NPPES is 1974 Santa Fe Ave, Long Beach, CA 90810-4064.
- What is William Nguyen's phone number?
- The practice phone number listed in the NPPES registry for William Nguyen is (562) 595-9799.
- Does William Nguyen accept Medicare?
- William Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Nguyen's NPI active?
- Yes — William Nguyen's NPI (1689316523) is active in the NPPES registry as of the last update on 2022-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.