NPPES file of Aug 9, 2026

Lois Barnes, M.D.

Obstetrics & Gynecology Physician · Ventura, CA

Lois Barnes, M.D. is an obstetrics & gynecology physician with a practice address in Ventura, California, and NPI 1134233521, issued on Aug 19, 2006. Check the license (California G58467, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134233521
Name
Lois Barnes
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G58467 CA
Self-reported in NPPES; status is on the state search
Practice location
168 N Brent St Ste 302, Ventura, CA 93003
Phone
(805) 652-6373
Enumerated
Aug 19, 2006
Record last updated
Apr 16, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 168 N Brent St Ste 302

A shared address usually means a shared clinic or building; it does not show who employs whom.

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  3. Ann SalahuddinHematology & Oncology Physician1053350231

Verify Lois Barnes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G58467    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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Industry payments in 2024: $44.66

2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lois Barnes$44.66
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Lois Barnes among 5,088 obstetrics & gynecology physician records in California

Lois Barnes, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2019 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

All 5,088 in California → Every provider in Ventura → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Terry Cole, M.D.Ventura, CA 930031992748651
  2. Steven Coyle, MDVentura, CA 930031548276900
  3. Patrick Diesfeld, M.D.Ventura, CA 930031568576080
  4. Katherine Edwards, M.D.Ventura, CA 930031972635498
  5. Olivia Farfan-Gonzalez, M.D.Ventura, CA 930031720014376
  6. John Gustafson, M.D.Ventura, CA 930031003836016
  7. Jeffrey Martin, M.D.Ventura, CA 930031568490803
  8. Srisawai Pattamakom, M.D.Ventura, CA 930031114031648

Common questions

What is Lois Barnes, M.D.'s NPI number?

Lois Barnes, M.D.'s National Provider Identifier (NPI) is 1134233521, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lois Barnes, M.D. located?

The NPPES record lists a practice address at 168 N Brent St Ste 302, Ventura, CA, 93003. Phone: (805) 652-6373. Providers update this record themselves, so call before visiting.

How can I verify Lois Barnes, M.D.'s license?

NPPES lists California license number G58467, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.