IndividualActive
Christopher Keir, M.D.
NPI 1508989310 · Internal Medicine Physician · Boston, MA
Christopher Keir, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1508989310).
Provider details
- NPI number
- 1508989310
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 221831 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 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
41 Milford St
Boston, MA 02118-3613
Phone: (617) 482-3747
Street-level locationGet directions
Mailing address
41 Milford St
Boston, MA 02118-3613
Registry dates
- Enumerated
- 2007-04-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Christopher Keir's NPI number?
- Christopher Keir's National Provider Identifier (NPI) is 1508989310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Keir's specialty?
- Christopher Keir is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Keir located?
- Christopher Keir's practice location on file with NPPES is 41 Milford St, Boston, MA 02118-3613.
- What is Christopher Keir's phone number?
- The practice phone number listed in the NPPES registry for Christopher Keir is (617) 482-3747.
- Is Christopher Keir's NPI active?
- Yes — Christopher Keir's NPI (1508989310) 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.