Peter Schlesinger, M.D.
NPI 1265409650 · Internal Medicine Physician · Cambridge, MA
Peter Schlesinger, M.D. is a Internal Medicine Physician provider in Cambridge, MA (NPI 1265409650).
Provider details
- NPI number
- 1265409650
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 40898 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-03-03
- Last updated
- 2013-03-26
Frequently asked questions
- What is Peter Schlesinger's NPI number?
- Peter Schlesinger's National Provider Identifier (NPI) is 1265409650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Schlesinger's specialty?
- Peter Schlesinger is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Schlesinger located?
- Peter Schlesinger's practice location on file with NPPES is 1000 Cambridge St, Cambridge, MA 02141-1043.
- What is Peter Schlesinger's phone number?
- The practice phone number listed in the NPPES registry for Peter Schlesinger is (617) 876-1668.
- Is Peter Schlesinger's NPI active?
- Yes — Peter Schlesinger's NPI (1265409650) is active in the NPPES registry as of the last update on 2013-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.