Darren Brennan, M.D.
NPI 1710904172 · Diagnostic Radiology Physician · Marlborough, MA
Darren Brennan, M.D. is a Diagnostic Radiology Physician provider in Marlborough, MA (NPI 1710904172).
Provider details
- NPI number
- 1710904172
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 228330 (MA)
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
2 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.
Practice location
Mailing address
Additional practice locations (1)
- 55 Lake Ave NWorcester, MA 01655-0002Phone: (508) 334-7237Fax: (774) 441-8443
Registry dates
- Enumerated
- 2006-07-15
- Last updated
- 2021-05-19
- Certified
- 2021-05-19
Frequently asked questions
- What is Darren Brennan's NPI number?
- Darren Brennan's National Provider Identifier (NPI) is 1710904172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Brennan's specialty?
- Darren Brennan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Brennan located?
- Darren Brennan's practice location on file with NPPES is 157 Union St, Marlborough, MA 01752-1228.
- What is Darren Brennan's phone number?
- The practice phone number listed in the NPPES registry for Darren Brennan is (508) 486-5600.
- Is Darren Brennan's NPI active?
- Yes — Darren Brennan's NPI (1710904172) is active in the NPPES registry as of the last update on 2021-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.