IndividualActive
James Mier, M.D.
NPI 1265464788 · Medical Oncology Physician · Boston, MA
James Mier, M.D. is a Medical Oncology Physician provider in Boston, MA (NPI 1265464788).
Provider details
- NPI number
- 1265464788
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 46528 (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
19 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
Beth Israel Med Center
330 Brookline Ave
Boston, MA 02215
Phone: (617) 667-0430
Approximate (ZIP-level) locationGet directions
Mailing address
26 John St
Brookline, MA 02446-3703
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Mier's NPI number?
- James Mier's National Provider Identifier (NPI) is 1265464788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mier's specialty?
- James Mier is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is James Mier located?
- James Mier's practice location on file with NPPES is Beth Israel Med Center, Boston, MA 02215.
- What is James Mier's phone number?
- The practice phone number listed in the NPPES registry for James Mier is (617) 667-0430.
- Is James Mier's NPI active?
- Yes — James Mier's NPI (1265464788) 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.