Donald Simonson, M.D.
NPI 1194917542 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Donald Simonson, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1194917542).
Provider details
- NPI number
- 1194917542
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 58453 (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
18 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
- 2007-08-09
- Last updated
- 2007-08-09
Frequently asked questions
- What is Donald Simonson's NPI number?
- Donald Simonson's National Provider Identifier (NPI) is 1194917542, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Simonson's specialty?
- Donald Simonson is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Simonson located?
- Donald Simonson's practice location on file with NPPES is 221 Longwood Ave, Boston, MA 02115-5804.
- What is Donald Simonson's phone number?
- The practice phone number listed in the NPPES registry for Donald Simonson is (617) 732-7672.
- Is Donald Simonson's NPI active?
- Yes — Donald Simonson's NPI (1194917542) is active in the NPPES registry as of the last update on 2007-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.