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John O'Brien, PHARMD
NPI 1770615452 · Pharmacotherapy Pharmacist · San Jose, CA
John O'Brien, PHARMD is a Pharmacotherapy Pharmacist provider in San Jose, CA (NPI 1770615452).
Provider details
- NPI number
- 1770615452
- Entity type
- Individual
- Primary specialty
- Pharmacotherapy PharmacistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 45683 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(89/100 index)
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.
Practice location
2400 Moorpark Ave
Suite 316b, Ira Greene Pace Clinic
San Jose, CA 95128-2631
Phone: (408) 885-7615
Fax: (408) 885-4699
Street-level locationGet directions
Mailing address
6146 Calle Esperanza
San Jose, CA 95120-4406
Registry dates
- Enumerated
- 2007-03-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is John O'Brien's NPI number?
- John O'Brien's National Provider Identifier (NPI) is 1770615452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John O'Brien's specialty?
- John O'Brien is listed in the NPPES registry with a primary specialty of Pharmacotherapy Pharmacist (Pharmacy Service Providers).
- Where is John O'Brien located?
- John O'Brien's practice location on file with NPPES is 2400 Moorpark Ave, San Jose, CA 95128-2631.
- What is John O'Brien's phone number?
- The practice phone number listed in the NPPES registry for John O'Brien is (408) 885-7615.
- Is John O'Brien's NPI active?
- Yes — John O'Brien's NPI (1770615452) 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.