NPPES file of Aug 9, 2026

Joel E. Herness, M.D.

Family Medicine Physician · Fairfield, CA

Joel E. Herness, M.D. is a family medicine physician with a practice address in Fairfield, California, and NPI 1023379260, issued on Jun 5, 2012. Check the license (California 182768, 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
1023379260
Name
Joel E. Herness
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
182768 CA
Self-reported in NPPES; status is on the state search
Practice location
101 Bodin Cir, Fairfield, CA 94535
Phone
(707) 423-3911
Enumerated
Jun 5, 2012
Record last updated
Dec 4, 2024
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 101 Bodin Cir

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

  1. Angela Aguayo, MSWSocial Worker1225504897
  2. Artemio Alanis, PHARMDOncology Pharmacist1396513982
  3. Traci Allen, RNCase Management Registered Nurse1669292132
  4. Rachel Anderson, MDAnesthesiology Physician1942730072
  5. Eugene Asabor, DDSDentist1568300242
  6. Savannah Bahls, DOMilitary Health Care Provider1619764008

Verify Joel E. Herness in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 182768
    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.

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99% fewer Medicare Part D claims than the average family medicine physician in 2024

38 Medicare Part D claims for 18 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Joel Herness38
  2. Specialty average3,544

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.

Joel E. Herness among 17,133 family medicine physician records in California

Joel E. Herness, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 66% of them.

  • NPI issued2012 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

67 family medicine physician records list a practice address in Fairfield

They are 67 of the 3,595 NPPES records with a practice address in Fairfield, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Joann Basaran, MDTravis Afb, CA 945351184610305
  2. Ronald Crandall, M.D.Travis Afb, CA 945351861473456
  3. Byron Hepburn, MDTravis Afb, CA 945351730178021
  4. Kathryn Holder, M.D.Fairfield, CA 945351962499392
  5. Ilda Isaza, D.O.Travis Afb, CA 945351871512913
  6. Gregory Kennebeck, MDTravis Afb, CA 945351871579847
  7. Nonato Largoza, MDTravis Afb, CA 945351609817303
  8. Daniel Murray, M.D., M.P.H.Travis Afb, CA 945351285613018

Common questions

What is Joel E. Herness, M.D.'s NPI number?

Joel E. Herness, M.D.'s National Provider Identifier (NPI) is 1023379260, issued on Jun 5, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Joel E. Herness, M.D. located?

The NPPES record lists a practice address at 101 Bodin Cir, Fairfield, CA, 94535. Phone: (707) 423-3911. Providers update this record themselves, so call before visiting.

How can I verify Joel E. Herness, M.D.'s license?

NPPES lists California license number 182768, 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 Joel E. Herness, M.D. prescribe under Medicare Part D?

In 2024, Joel E. Herness, M.D. had 38 Medicare Part D claims for 18 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.

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.