Registry data as of Aug 27, 2026

Charles Adams, M.D.

Family Medicine Physician · Ventura, CA

Charles Adams, M.D. is a family medicine physician with a practice address in Ventura, California, and NPI 1811925225, issued on Jun 28, 2006. Check the license (California A66102, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1811925225
Name
Charles Adams
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A66102 CA
Self-reported in NPPES; status is on the state search
Practice location
888 S Hill RD, Ventura, CA 93003
Phone
(805) 477-6464
Enumerated
Jun 28, 2006
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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Also registered at 888 S Hill RD

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

  1. Erin Anderson, P.T.Physical Therapist1811916299
  2. Nathania BarriosPharmacist1346827763
  3. Charles Brenner, M.D.Orthopaedic Surgery Physician1548299035
  4. Eric Chun, M.D.Family Medicine Physician1699702381
  5. Megan Chynoweth, PHARM.D.Pharmacist1689980260
  6. Cynthia Coggins, P.A.Medical Physician Assistant1346271277

Verify Charles Adams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66102
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

55% more Medicare Part D claims than the average family medicine physician in 2024

5,467 Medicare Part D claims for 829 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 416 claims were for opioids.

  1. Charles Adams5,467
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium383 claims
  2. Lisinopril284 claims
  3. Hydrocodone-Acetaminophen253 claims
  4. Amlodipine Besylate178 claims
  5. Levothyroxine Sodium169 claims
  6. Losartan Potassium153 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

One hospital or facility affiliation

  1. Southern California Permanente Medical GroupVentura, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

206 family medicine physician records list a Ventura practice address

They are 206 of the 4,435 NPPES records with a Ventura practice address, and 16,272 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Charles Adams, M.D.'s NPI number?

Charles Adams, M.D.'s National Provider Identifier (NPI) is 1811925225, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles Adams, M.D. located?

The NPPES record lists a practice address at 888 S Hill RD, Ventura, CA, 93003. Phone: (805) 477-6464. Providers update this record themselves, so call before visiting.

How can I verify Charles Adams, M.D.'s license?

NPPES lists California license number A66102, 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.

How much does Charles Adams, M.D. prescribe under Medicare Part D?

In 2024, Charles Adams, M.D. had 5,467 Medicare Part D claims for 829 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.