Holcombe Grier, MD
NPI 1295702793 · Pediatric Hematology & Oncology Physician · Boston, MA
Holcombe Grier, MD is a Pediatric Hematology & Oncology Physician provider in Boston, MA (NPI 1295702793).
Provider details
- NPI number
- 1295702793
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 48511 (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
- 2006-03-02
- Last updated
- 2007-08-14
Frequently asked questions
- What is Holcombe Grier's NPI number?
- Holcombe Grier's National Provider Identifier (NPI) is 1295702793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holcombe Grier's specialty?
- Holcombe Grier is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Holcombe Grier located?
- Holcombe Grier's practice location on file with NPPES is 44 Binney St, Boston, MA 02115.
- What is Holcombe Grier's phone number?
- The practice phone number listed in the NPPES registry for Holcombe Grier is (617) 632-3971.
- Is Holcombe Grier's NPI active?
- Yes — Holcombe Grier's NPI (1295702793) is active in the NPPES registry as of the last update on 2007-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.