Allan Green, MD, PHD
NPI 1427120344 · Internal Medicine Physician · Cambridge, MA
Allan Green, MD, PHD is a Internal Medicine Physician provider in Cambridge, MA (NPI 1427120344).
Provider details
- NPI number
- 1427120344
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 37723 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Allan Green's NPI number?
- Allan Green's National Provider Identifier (NPI) is 1427120344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allan Green's specialty?
- Allan Green is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Allan Green located?
- Allan Green's practice location on file with NPPES is 124 Mount Auburn St, Cambridge, MA 02138-5813.
- What is Allan Green's phone number?
- The practice phone number listed in the NPPES registry for Allan Green is (617) 447-5999.
- Is Allan Green's NPI active?
- Yes — Allan Green's NPI (1427120344) 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.