Ellen Herrera, NP
NPI 1891523700 · Nurse Practitioner · Madison, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Herrera, NP is a Nurse Practitioner provider in Madison, WI (NPI 1891523700).
Provider details
- NPI number
- 1891523700
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 15634-33 (WI)
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
1 yr 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
- 2024-07-23
- Last updated
- 2025-03-17
- Certified
- 2025-03-17
Frequently asked questions
- What is Ellen Herrera's NPI number?
- Ellen Herrera's National Provider Identifier (NPI) is 1891523700, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Herrera's specialty?
- Ellen Herrera is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ellen Herrera located?
- Ellen Herrera's practice location on file with NPPES is 20 S Park St, Madison, WI 53715-1348.
- What is Ellen Herrera's phone number?
- The practice phone number listed in the NPPES registry for Ellen Herrera is (608) 287-2090.
- Does Ellen Herrera accept Medicare?
- Ellen Herrera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Herrera's NPI active?
- Yes — Ellen Herrera's NPI (1891523700) is active in the NPPES registry as of the last update on 2025-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.