John Horan, MD MPH
NPI 1649224502 · Pediatric Hematology & Oncology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Horan, MD MPH is a Pediatric Hematology & Oncology Physician provider in Boston, MA (NPI 1649224502).
Provider details
- NPI number
- 1649224502
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 253620 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-05-22
- Last updated
- 2019-08-01
Frequently asked questions
- What is John Horan's NPI number?
- John Horan's National Provider Identifier (NPI) is 1649224502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Horan's specialty?
- John Horan is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Horan located?
- John Horan's practice location on file with NPPES is 450 Brookline Avenue, Boston, MA 02215.
- What is John Horan's phone number?
- The practice phone number listed in the NPPES registry for John Horan is (617) 632-3270.
- Does John Horan accept Medicare?
- John Horan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Horan's NPI active?
- Yes — John Horan's NPI (1649224502) is active in the NPPES registry as of the last update on 2019-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.