Tao Nguyen, MD
NPI 1861587446 · Psychiatry Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tao Nguyen, MD is a Psychiatry Physician provider in San Jose, CA (NPI 1861587446).
Provider details
- NPI number
- 1861587446
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A45407 (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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Sertraline Hcl | 55 |
| Quetiapine Fumarate | 35 |
| Olanzapine | 21 |
| Trazodone Hcl | 18 |
| Benztropine Mesylate | 17 |
| Aripiprazole | 13 |
| Risperidone | 13 |
| Aripiprazolebrand: Abilify Maintena | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 1555 Parkmoor AveSan Jose, CA 95128-2407Phone: (408) 282-0402Fax: (408) 282-0400
- 1661 Burdette Dr Ste BSan Jose, CA 95121Phone: (408) 238-4542Fax: (408) 238-4542
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2018-12-06
Frequently asked questions
- What is Tao Nguyen's NPI number?
- Tao Nguyen's National Provider Identifier (NPI) is 1861587446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tao Nguyen's specialty?
- Tao Nguyen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Tao Nguyen located?
- Tao Nguyen's practice location on file with NPPES is 1661 Burdette Dr Ste B, San Jose, CA 95121.
- What is Tao Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Tao Nguyen is (408) 238-4542.
- Does Tao Nguyen accept Medicare?
- Tao Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tao Nguyen's NPI active?
- Yes — Tao Nguyen's NPI (1861587446) is active in the NPPES registry as of the last update on 2018-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.