Erin Shefferly, CNP
NPI 1538566393 · Family Nurse Practitioner · Portland, ME
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Shefferly, CNP is a Family Nurse Practitioner provider in Portland, ME (NPI 1538566393).
Provider details
- NPI number
- 1538566393
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP60522739 (WA)
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
11 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
- 2014-11-21
- Last updated
- 2018-11-26
Frequently asked questions
- What is Erin Shefferly's NPI number?
- Erin Shefferly's National Provider Identifier (NPI) is 1538566393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Shefferly's specialty?
- Erin Shefferly is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Erin Shefferly located?
- Erin Shefferly's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3134.
- What is Erin Shefferly's phone number?
- The practice phone number listed in the NPPES registry for Erin Shefferly is (207) 662-0810.
- Does Erin Shefferly accept Medicare?
- Erin Shefferly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Shefferly's NPI active?
- Yes — Erin Shefferly's NPI (1538566393) is active in the NPPES registry as of the last update on 2018-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.