Lois Barnes, M.D.
NPI 1134233521 · Obstetrics & Gynecology Physician · Ventura, CA
Lois Barnes, M.D. is a Obstetrics & Gynecology Physician provider in Ventura, CA (NPI 1134233521).
Provider details
- NPI number
- 1134233521
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G58467 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$45 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 3460 Loma Vista RdVentura, CA 93003-3026Phone: (805) 289-9405Fax: (805) 289-9457
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2019-04-16
Frequently asked questions
- What is Lois Barnes's NPI number?
- Lois Barnes's National Provider Identifier (NPI) is 1134233521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lois Barnes's specialty?
- Lois Barnes is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Lois Barnes located?
- Lois Barnes's practice location on file with NPPES is 168 N Brent St Ste 302, Ventura, CA 93003-2840.
- What is Lois Barnes's phone number?
- The practice phone number listed in the NPPES registry for Lois Barnes is (805) 652-6373.
- Is Lois Barnes's NPI active?
- Yes — Lois Barnes's NPI (1134233521) is active in the NPPES registry as of the last update on 2019-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.