Steven Grinspoon, MD
NPI 1457342099 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Steven Grinspoon, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1457342099).
Provider details
- NPI number
- 1457342099
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 75388 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2005-11-02
- Last updated
- 2011-09-27
Frequently asked questions
- What is Steven Grinspoon's NPI number?
- Steven Grinspoon's National Provider Identifier (NPI) is 1457342099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Grinspoon's specialty?
- Steven Grinspoon is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Grinspoon located?
- Steven Grinspoon's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Steven Grinspoon's phone number?
- The practice phone number listed in the NPPES registry for Steven Grinspoon is (617) 726-7948.
- Is Steven Grinspoon's NPI active?
- Yes — Steven Grinspoon's NPI (1457342099) is active in the NPPES registry as of the last update on 2011-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.