Barry Pierce, M.D.
NPI 1003977794 · Psychiatry Physician · Santa Rosa, CA
Barry Pierce, M.D. is a Psychiatry Physician provider in Santa Rosa, CA (NPI 1003977794).
Provider details
- NPI number
- 1003977794
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G50471 (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
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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 72 | 11 |
| Clonazepam | 70 | 11 |
| Bupropion Hclbrand: Bupropion Xl | 67 | 16 |
| Escitalopram Oxalate | 67 | 14 |
| Mirtazapine | 48 | 12 |
| Pregabalin | 44 | — |
| Fluoxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Barry Pierce's NPI number?
- Barry Pierce's National Provider Identifier (NPI) is 1003977794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barry Pierce's specialty?
- Barry Pierce is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Barry Pierce located?
- Barry Pierce's practice location on file with NPPES is 1260 N Dutton Ave, Santa Rosa, CA 95401-4659.
- What is Barry Pierce's phone number?
- The practice phone number listed in the NPPES registry for Barry Pierce is (707) 525-9045.
- Is Barry Pierce's NPI active?
- Yes — Barry Pierce's NPI (1003977794) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.