IndividualActive
David Harmon
NPI 1851358352 · Hematology & Oncology Physician · Boston, MA
David Harmon is a Hematology & Oncology Physician provider in Boston, MA (NPI 1851358352).
Provider details
- NPI number
- 1851358352
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- License
- 44555 (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
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
55 Fruit St Yaw 7
Mass General Hospital
Boston, MA 02114-2696
Phone: (617) 726-8748
Street-level locationGet directions
Mailing address
Po Box 9142
Charlestown, MA 02129-9142
Registry dates
- Enumerated
- 2006-04-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Harmon's NPI number?
- David Harmon's National Provider Identifier (NPI) is 1851358352, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Harmon's specialty?
- David Harmon is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is David Harmon located?
- David Harmon's practice location on file with NPPES is 55 Fruit St Yaw 7, Boston, MA 02114-2696.
- What is David Harmon's phone number?
- The practice phone number listed in the NPPES registry for David Harmon is (617) 726-8748.
- Is David Harmon's NPI active?
- Yes — David Harmon's NPI (1851358352) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.