IndividualActive
William Brennan, PHARMD
NPI 1659319507 · Pharmacotherapy Pharmacist · West Roxbury, MA
William Brennan, PHARMD is a Pharmacotherapy Pharmacist provider in West Roxbury, MA (NPI 1659319507).
Provider details
- NPI number
- 1659319507
- Entity type
- Individual
- Primary specialty
- Pharmacotherapy PharmacistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Male
- License
- 24041 (MA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(91/100 index)
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.
Practice location
1400 Vfw Pkwy
West Roxbury, MA 02132-4927
Phone: (857) 203-5213
Fax: (857) 203-5625
Street-level locationGet directions
Mailing address
29 Summit Rd
Wellesley, MA 02482-4614
Registry dates
- Enumerated
- 2006-06-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Brennan's NPI number?
- William Brennan's National Provider Identifier (NPI) is 1659319507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Brennan's specialty?
- William Brennan is listed in the NPPES registry with a primary specialty of Pharmacotherapy Pharmacist (Pharmacy Service Providers).
- Where is William Brennan located?
- William Brennan's practice location on file with NPPES is 1400 Vfw Pkwy, West Roxbury, MA 02132-4927.
- What is William Brennan's phone number?
- The practice phone number listed in the NPPES registry for William Brennan is (857) 203-5213.
- Is William Brennan's NPI active?
- Yes — William Brennan's NPI (1659319507) 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.