Duncan Maru, MD,PHD
NPI 1588892731 · Pediatrics Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duncan Maru, MD,PHD is a Pediatrics Physician provider in Boston, MA (NPI 1588892731).
Provider details
- NPI number
- 1588892731
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD,PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 254630 (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
17 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
- 2009-06-26
- Last updated
- 2014-10-15
Frequently asked questions
- What is Duncan Maru's NPI number?
- Duncan Maru's National Provider Identifier (NPI) is 1588892731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duncan Maru's specialty?
- Duncan Maru is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Duncan Maru located?
- Duncan Maru's practice location on file with NPPES is 42 Union Ave, Boston, MA 02130-2616.
- What is Duncan Maru's phone number?
- The practice phone number listed in the NPPES registry for Duncan Maru is (203) 687-8615.
- Does Duncan Maru accept Medicare?
- Duncan Maru is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duncan Maru's NPI active?
- Yes — Duncan Maru's NPI (1588892731) is active in the NPPES registry as of the last update on 2014-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.