IndividualActive
Irving Fox, M.D.
NPI 1144335035 · Rheumatology Physician · Cambridge, MA
Irving Fox, M.D. is a Rheumatology Physician provider in Cambridge, MA (NPI 1144335035).
Provider details
- NPI number
- 1144335035
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 72275 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 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
Millennium Pharmaceuticals Inc
40 Landsdowne Street
Cambridge, MA 02139
Phone: (617) 374-7614
Approximate (ZIP-level) locationGet directions
Mailing address
111 Livingston Rd
Wellesley, MA 02482-7308
Registry dates
- Enumerated
- 2006-08-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Irving Fox's NPI number?
- Irving Fox's National Provider Identifier (NPI) is 1144335035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irving Fox's specialty?
- Irving Fox is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Irving Fox located?
- Irving Fox's practice location on file with NPPES is Millennium Pharmaceuticals Inc, Cambridge, MA 02139.
- What is Irving Fox's phone number?
- The practice phone number listed in the NPPES registry for Irving Fox is (617) 374-7614.
- Is Irving Fox's NPI active?
- Yes — Irving Fox's NPI (1144335035) 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.