Elizabeth O'Brien, CNM, NP
NPI 1023133790 · Advanced Practice Midwife · Eureka, CA
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth O'Brien, CNM, NP is a Advanced Practice Midwife provider in Eureka, CA (NPI 1023133790).
Provider details
- NPI number
- 1023133790
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM, NP
- Sex
- Female
- Sole proprietor
- No
- License
- 7579 (CA)
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
19 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
- 2007-03-20
- Last updated
- 2013-04-16
Frequently asked questions
- What is Elizabeth O'Brien's NPI number?
- Elizabeth O'Brien's National Provider Identifier (NPI) is 1023133790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth O'Brien's specialty?
- Elizabeth O'Brien is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Elizabeth O'Brien located?
- Elizabeth O'Brien's practice location on file with NPPES is 3200 Walford Ave, Eureka, CA 95503-4828.
- What is Elizabeth O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth O'Brien is (707) 445-3443.
- Does Elizabeth O'Brien accept Medicare?
- Elizabeth O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth O'Brien's NPI active?
- Yes — Elizabeth O'Brien's NPI (1023133790) is active in the NPPES registry as of the last update on 2013-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.