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Barry Zallen, M.D.
NPI 1588667539 · Pediatrics Physician · Boston, MA
Barry Zallen, M.D. is a Pediatrics Physician provider in Boston, MA (NPI 1588667539).
Provider details
- NPI number
- 1588667539
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47912 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
21 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
300 Longwood Ave
Children'S Hospital, Au 105
Boston, MA 02115-5724
Phone: (617) 919-6263
Street-level locationGet directions
Mailing address
130 Draper Rd
Wayland, MA 01778-1728
Registry dates
- Enumerated
- 2005-05-23
- Last updated
- 2014-10-22
Frequently asked questions
- What is Barry Zallen's NPI number?
- Barry Zallen's National Provider Identifier (NPI) is 1588667539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barry Zallen's specialty?
- Barry Zallen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Barry Zallen located?
- Barry Zallen's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Barry Zallen's phone number?
- The practice phone number listed in the NPPES registry for Barry Zallen is (617) 919-6263.
- Is Barry Zallen's NPI active?
- Yes — Barry Zallen's NPI (1588667539) is active in the NPPES registry as of the last update on 2014-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.