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Grant Schleifer, MD, MPH
NPI 1154070670 · Internal Medicine Physician · Newton, MA
Grant Schleifer, MD, MPH is a Internal Medicine Physician provider in Newton, MA (NPI 1154070670).
Provider details
- NPI number
- 1154070670
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 294097 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(60/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
2014 Washington St
Newton, MA 02462-1607
Phone: (678) 984-6098
Street-level locationGet directions
Mailing address
2014 Washington St
Newton, MA 02462-1699
Registry dates
- Enumerated
- 2022-03-22
- Last updated
- 2023-01-24
- Certified
- 2023-01-24
Frequently asked questions
- What is Grant Schleifer's NPI number?
- Grant Schleifer's National Provider Identifier (NPI) is 1154070670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Schleifer's specialty?
- Grant Schleifer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grant Schleifer located?
- Grant Schleifer's practice location on file with NPPES is 2014 Washington St, Newton, MA 02462-1607.
- What is Grant Schleifer's phone number?
- The practice phone number listed in the NPPES registry for Grant Schleifer is (678) 984-6098.
- Is Grant Schleifer's NPI active?
- Yes — Grant Schleifer's NPI (1154070670) is active in the NPPES registry as of the last update on 2023-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.