NPPES file of Aug 9, 2026

Jeffrey J. Heffernon, MD

Diagnostic Radiology Physician · Woodland, CA

Jeffrey J. Heffernon, MD is a diagnostic radiology physician with a practice address in Woodland, California, and NPI 1174625131, issued on Sep 1, 2006. Check the license 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174625131
Name
Jeffrey J. Heffernon
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
35698 WI
Self-reported in NPPES; status is on the state search
Practice location
1325 Cottonwood St, Woodland, CA 95695
Phone
(530) 669-2800
Enumerated
Sep 1, 2006
Record last updated
Oct 20, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
32063200 WI
Medicare enrollment
Enrolled (PECOS I20111005000566); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1325 Cottonwood St

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

  1. Mariam Ahmadzai, OTOccupational Therapist1225204019
  2. Thomas Ambrosini, NPNurse Practitioner1114067006
  3. Daniel Bolster, M.D.Emergency Medicine Physician1861555732
  4. Daniel Carter, DOEmergency Medicine Physician1902425713
  5. Natalie Delfin, ACSWSocial Worker1194158089
  6. Richard Gilgut, PA-CMedical Physician Assistant1285987909

Verify Jeffrey J. Heffernon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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The MIPS final score for 2023 (Medicare payment program): 96.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Dignity Health Medical FoundationSacramento, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jeffrey J. Heffernon among 4,500 diagnostic radiology physician records in California

Jeffrey J. Heffernon, MD is one of 4,500 diagnostic radiology 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1976 · median 2004 among the 3,130 with a school on file
  • Record last updated2011 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Eric Mitchel, MDWoodland, CA 956951235167008
  2. Marc BrownVacaville, CA 956871285509562
  3. Alison Bevan, M.D.Cameron Park, CA 956821740218064
  4. Cynthia Fleming, M.D.Rocklin, CA 956771295956712
  5. Jerry Arnold, M.D.Placerville, CA 956671811984859
  6. Algimantas Balciunas, MDPlacerville, CA 956671881664050
  7. Richard Budenz, PHD MDPlacerville, CA 956671659341824
  8. Jonathan Fugitt, M.D.Placerville, CA 956671588635684

Common questions

What is Jeffrey J. Heffernon, MD's NPI number?

Jeffrey J. Heffernon, MD's National Provider Identifier (NPI) is 1174625131, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey J. Heffernon, MD located?

The NPPES record lists a practice address at 1325 Cottonwood St, Woodland, CA, 95695. Phone: (530) 669-2800. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey J. Heffernon, MD's license?

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.

What is Jeffrey J. Heffernon, MD's MIPS final score?

The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.