Maria Sierra
NPI 1124993852 · Dentist · Great Barrington, MA
Enrolled with Medicare as Practitioner - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Sierra is a Dentist provider in Great Barrington, MA (NPI 1124993852).
Provider details
- NPI number
- 1124993852
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- DL101226 (MA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2025-10-10
- Last updated
- 2025-10-10
- Certified
- 2025-10-10
Frequently asked questions
- What is Maria Sierra's NPI number?
- Maria Sierra's National Provider Identifier (NPI) is 1124993852, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Sierra's specialty?
- Maria Sierra is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Maria Sierra located?
- Maria Sierra's practice location on file with NPPES is 444 Stockbridge Rd, Great Barrington, MA 01230-1295.
- What is Maria Sierra's phone number?
- The practice phone number listed in the NPPES registry for Maria Sierra is (413) 528-5565.
- Does Maria Sierra accept Medicare?
- Maria Sierra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Sierra's NPI active?
- Yes — Maria Sierra's NPI (1124993852) is active in the NPPES registry as of the last update on 2025-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.