Sandra Mason, M.D.
NPI 1891753273 · Obstetrics & Gynecology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Mason, M.D. is a Obstetrics & Gynecology Physician provider in Boston, MA (NPI 1891753273).
Provider details
- NPI number
- 1891753273
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 207645 (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
- 2006-05-03
- Last updated
- 2011-04-06
Frequently asked questions
- What is Sandra Mason's NPI number?
- Sandra Mason's National Provider Identifier (NPI) is 1891753273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Mason's specialty?
- Sandra Mason is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Sandra Mason located?
- Sandra Mason's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is Sandra Mason's phone number?
- The practice phone number listed in the NPPES registry for Sandra Mason is (617) 667-2949.
- Does Sandra Mason accept Medicare?
- Sandra Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Mason's NPI active?
- Yes — Sandra Mason's NPI (1891753273) is active in the NPPES registry as of the last update on 2011-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.