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Lloyd Klickstein, MD, PHD
NPI 1467423418 · Rheumatology Physician · Cambridge, MA
Lloyd Klickstein, MD, PHD is a Rheumatology Physician provider in Cambridge, MA (NPI 1467423418).
Provider details
- NPI number
- 1467423418
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 74818 (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
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
400 Technology Sq
Cambridge, MA 02139-3583
Phone: (617) 871-3123
Fax: (617) 871-4091
Street-level locationGet directions
Mailing address
380 Winchester St
Newton, MA 02461-2035
Registry dates
- Enumerated
- 2006-01-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Lloyd Klickstein's NPI number?
- Lloyd Klickstein's National Provider Identifier (NPI) is 1467423418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lloyd Klickstein's specialty?
- Lloyd Klickstein is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Lloyd Klickstein located?
- Lloyd Klickstein's practice location on file with NPPES is 400 Technology Sq, Cambridge, MA 02139-3583.
- What is Lloyd Klickstein's phone number?
- The practice phone number listed in the NPPES registry for Lloyd Klickstein is (617) 871-3123.
- Is Lloyd Klickstein's NPI active?
- Yes — Lloyd Klickstein's NPI (1467423418) 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.