David Huang, M.D.
NPI 1104813351 · Psychiatry Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Huang, M.D. is a Psychiatry Physician provider in San Rafael, CA (NPI 1104813351).
Provider details
- NPI number
- 1104813351
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 45497-020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 74 | 24 |
| Trazodone Hcl | 59 | 25 |
| Lorazepam | 53 | 17 |
| Fluoxetine Hcl | 35 | 11 |
| Olanzapine | 34 | — |
| Lamotrigine | 32 | 13 |
| Mirtazapine | 30 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-03
- Last updated
- 2021-12-14
Frequently asked questions
- What is David Huang's NPI number?
- David Huang's National Provider Identifier (NPI) is 1104813351, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Huang's specialty?
- David Huang is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is David Huang located?
- David Huang's practice location on file with NPPES is 820 Las Gallinas Ave, San Rafael, CA 94903-3410.
- What is David Huang's phone number?
- The practice phone number listed in the NPPES registry for David Huang is (415) 444-2000.
- Does David Huang accept Medicare?
- David Huang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Huang's NPI active?
- Yes — David Huang's NPI (1104813351) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.