Maria Slater, MD
NPI 1851032338 · Internal Medicine Physician · Boston, MA
Maria Slater, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1851032338).
Provider details
- NPI number
- 1851032338
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
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
83% 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
- 2022-04-06
- Last updated
- 2023-06-11
- Certified
- 2023-06-11
Frequently asked questions
- What is Maria Slater's NPI number?
- Maria Slater's National Provider Identifier (NPI) is 1851032338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Slater's specialty?
- Maria Slater is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Slater located?
- Maria Slater's practice location on file with NPPES is 800 Washington St, Boston, MA 02111-1552.
- What is Maria Slater's phone number?
- The practice phone number listed in the NPPES registry for Maria Slater is (617) 636-5000.
- Is Maria Slater's NPI active?
- Yes — Maria Slater's NPI (1851032338) is active in the NPPES registry as of the last update on 2023-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.