Kathryn Simpson, C-NP
NPI 1558861963 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathryn Simpson, C-NP is a Nurse Practitioner provider in Boston, MA (NPI 1558861963).
Provider details
- NPI number
- 1558861963
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- C-NP
- Sex
- Female
- Sole proprietor
- No
- License
- 2314796 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
- 2018-02-13
- Last updated
- 2018-04-10
Frequently asked questions
- What is Kathryn Simpson's NPI number?
- Kathryn Simpson's National Provider Identifier (NPI) is 1558861963, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathryn Simpson's specialty?
- Kathryn Simpson is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kathryn Simpson located?
- Kathryn Simpson's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Kathryn Simpson's phone number?
- The practice phone number listed in the NPPES registry for Kathryn Simpson is (617) 724-1817.
- Does Kathryn Simpson accept Medicare?
- Kathryn Simpson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathryn Simpson's NPI active?
- Yes — Kathryn Simpson's NPI (1558861963) is active in the NPPES registry as of the last update on 2018-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.