Katherine Estrin, MSN, RN, CPNP-PC
NPI 1134648496 · Pediatric Nurse Practitioner · Boston, MA
Katherine Estrin, MSN, RN, CPNP-PC is a Pediatric Nurse Practitioner provider in Boston, MA (NPI 1134648496).
Provider details
- NPI number
- 1134648496
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, RN, CPNP-PC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2286363 (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
8 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
- 2017-09-18
- Last updated
- 2024-02-28
- Certified
- 2024-02-28
Frequently asked questions
- What is Katherine Estrin's NPI number?
- Katherine Estrin's National Provider Identifier (NPI) is 1134648496, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Estrin's specialty?
- Katherine Estrin is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Estrin located?
- Katherine Estrin's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Katherine Estrin's phone number?
- The practice phone number listed in the NPPES registry for Katherine Estrin is (617) 355-6000.
- Is Katherine Estrin's NPI active?
- Yes — Katherine Estrin's NPI (1134648496) is active in the NPPES registry as of the last update on 2024-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.