Marc E. Effron, M.D.
Cardiovascular Disease Physician · Encinitas, CA
Marc E. Effron, M.D. is a cardiovascular disease physician with a practice address in Encinitas, California, and NPI 1346218278, issued on Mar 8, 2006. Check the license (California G40964, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marc E. Effron
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G40964 CA
Self-reported in NPPES; status is on the state search - Practice location
- 320 Santa FE Dr, Encinitas, CA 92024
- Phone
- (760) 944-7300
- Enumerated
- Mar 8, 2006
- Record last updated
- Jan 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (760) 634-6564
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 320 Santa FE Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dennis Amundson, DOPulmonary Disease Physician1477524403
- Sarah Asmussen, PH.D.Specialist1831341387
- Roy Avalos, M.D.Cardiovascular Disease Physician1154399632
- Leigh Barker, NPNurse Practitioner1417995945
- Margot BarkerObstetrics & Gynecology Physician1790426765
- Joseph Bonanno, M.D.Specialist1558339176
Verify Marc E. Effron in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G40964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marc E. Effron among 2,574 cardiovascular disease physician records in California
Marc E. Effron, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,574 in California → Every provider in Encinitas → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Riaz Ahmed, M.D.Encinitas, CA 920241376593871
- Roy Avalos, M.D.Encinitas, CA 920241154399632
- Maurice Buchbinder, M.D.Encinitas, CA 920241851369813
- Brian Carlos, MDEncinitas, CA 920241730127515
- Martin Charlat, M.D.Encinitas, CA 920241790753770
- Pingfeng Du, M.D.Encinitas, CA 920241285694349
- David Hill, M.D.Encinitas, CA 920241215905872
- Katherine Ludington, M.D.Encinitas, CA 920241164420469
Common questions
What is Marc E. Effron, M.D.'s NPI number?
Marc E. Effron, M.D.'s National Provider Identifier (NPI) is 1346218278, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc E. Effron, M.D. located?
The NPPES record lists a practice address at 320 Santa FE Dr, Encinitas, CA, 92024. Phone: (760) 944-7300. Providers update this record themselves, so call before visiting.
How can I verify Marc E. Effron, M.D.'s license?
NPPES lists California license number G40964, 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. 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.