Sigrid Bergenstein, N.P.
NPI 1659675437 · Primary Care Nurse Practitioner · Boston, MA
Sigrid Bergenstein, N.P. is a Primary Care Nurse Practitioner provider in Boston, MA (NPI 1659675437).
Provider details
- NPI number
- 1659675437
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- RN2259253 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2011-01-07
- Last updated
- 2015-10-22
Frequently asked questions
- What is Sigrid Bergenstein's NPI number?
- Sigrid Bergenstein's National Provider Identifier (NPI) is 1659675437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sigrid Bergenstein's specialty?
- Sigrid Bergenstein is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sigrid Bergenstein located?
- Sigrid Bergenstein's practice location on file with NPPES is 30 Northampton Street, Boston, MA 02118-4010.
- What is Sigrid Bergenstein's phone number?
- The practice phone number listed in the NPPES registry for Sigrid Bergenstein is (617) 433-9601.
- Is Sigrid Bergenstein's NPI active?
- Yes — Sigrid Bergenstein's NPI (1659675437) is active in the NPPES registry as of the last update on 2015-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.