Dennis Dwan, MD
NPI 1174140172 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Dwan, MD is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1174140172).
Provider details
- NPI number
- 1174140172
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ETLL-1321 (MA)
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
6 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
Mailing address
Registry dates
- Enumerated
- 2020-06-25
- Last updated
- 2025-05-21
- Certified
- 2025-05-21
Frequently asked questions
- What is Dennis Dwan's NPI number?
- Dennis Dwan's National Provider Identifier (NPI) is 1174140172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Dwan's specialty?
- Dennis Dwan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Dwan located?
- Dennis Dwan's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Dennis Dwan's phone number?
- The practice phone number listed in the NPPES registry for Dennis Dwan is (617) 506-2726.
- Does Dennis Dwan accept Medicare?
- Dennis Dwan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Dwan's NPI active?
- Yes — Dennis Dwan's NPI (1174140172) is active in the NPPES registry as of the last update on 2025-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.