Chau Nguyen, D.O.
NPI 1861718397 · Rheumatology Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chau Nguyen, D.O. is a Rheumatology Physician provider in Long Beach, CA (NPI 1861718397).
Provider details
- NPI number
- 1861718397
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A11904 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 280 | 85 |
| Prednisone | 227 | 90 |
| Etanerceptbrand: Enbrel Sureclick | 137 | 16 |
| Hydroxychloroquine Sulfate | 130 | 53 |
| Leflunomide | 120 | 40 |
| Etanerceptbrand: Enbrel | 104 | 12 |
| Sulfasalazine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-08
- Last updated
- 2021-12-08
Frequently asked questions
- What is Chau Nguyen's NPI number?
- Chau Nguyen's National Provider Identifier (NPI) is 1861718397, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chau Nguyen's specialty?
- Chau Nguyen is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Chau Nguyen located?
- Chau Nguyen's practice location on file with NPPES is 2699 Atlantic Ave, Long Beach, CA 90806-2710.
- What is Chau Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Chau Nguyen is (562) 426-3333.
- Does Chau Nguyen accept Medicare?
- Chau Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chau Nguyen's NPI active?
- Yes — Chau Nguyen's NPI (1861718397) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.