Howard Nguyen, DO
NPI 1558896381 · Geriatric Psychiatry Physician · Baldwin Park, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Howard Nguyen, DO is a Geriatric Psychiatry Physician provider in Baldwin Park, CA (NPI 1558896381).
Provider details
- NPI number
- 1558896381
- Entity type
- Individual
- Primary specialty
- Geriatric Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A20728 (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
9 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 47 | 11 |
| Escitalopram Oxalate | 43 | 16 |
| Mirtazapine | 42 | 18 |
| Sertraline Hcl | 28 | 18 |
| Buspirone Hcl | 27 | 14 |
| Gabapentin | 19 | — |
| Risperidone | 18 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-30
- Last updated
- 2024-10-25
- Certified
- 2024-07-01
Frequently asked questions
- What is Howard Nguyen's NPI number?
- Howard Nguyen's National Provider Identifier (NPI) is 1558896381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Howard Nguyen's specialty?
- Howard Nguyen is listed in the NPPES registry with a primary specialty of Geriatric Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Howard Nguyen located?
- Howard Nguyen's practice location on file with NPPES is 1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806.
- What is Howard Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Howard Nguyen is (833) 574-2273.
- Does Howard Nguyen accept Medicare?
- Howard Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Howard Nguyen's NPI active?
- Yes — Howard Nguyen's NPI (1558896381) is active in the NPPES registry as of the last update on 2024-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.