Xuan-Loc Nguyen, DO
NPI 1477949519 · Family Medicine Physician · Rocklin, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xuan-Loc Nguyen, DO is a Family Medicine Physician provider in Rocklin, CA (NPI 1477949519).
Provider details
- NPI number
- 1477949519
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A18834 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,495 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 512 | $108 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 470 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 170 | $81 |
| Administration of Influenza Virus VaccineG0008 | 76 | $34 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 65 | $153 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 233 | 100 |
| Levothyroxine Sodium | 154 | 60 |
| Lisinopril | 114 | 47 |
| Losartan Potassium | 96 | 35 |
| Gabapentin | 94 | 32 |
| Amlodipine Besylate | 82 | 38 |
| Simvastatin | 67 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-14
- Last updated
- 2023-11-30
- Certified
- 2023-11-30
Frequently asked questions
- What is Xuan-Loc Nguyen's NPI number?
- Xuan-Loc Nguyen's National Provider Identifier (NPI) is 1477949519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xuan-Loc Nguyen's specialty?
- Xuan-Loc Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Xuan-Loc Nguyen located?
- Xuan-Loc Nguyen's practice location on file with NPPES is 550 W Ranch View Dr Ste 2005, Rocklin, CA 95765-5397.
- What is Xuan-Loc Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Xuan-Loc Nguyen is (916) 295-5700.
- Does Xuan-Loc Nguyen accept Medicare?
- Xuan-Loc Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xuan-Loc Nguyen's NPI active?
- Yes — Xuan-Loc Nguyen's NPI (1477949519) is active in the NPPES registry as of the last update on 2023-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.