Mark L. Villalon, MD
Interventional Cardiology Physician · Napa, CA
Mark L. Villalon, MD is an interventional cardiology physician with a practice address in Napa, California, and NPI 1720249816, issued on Jun 20, 2008. Check the license (California A129668, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark L. Villalon
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License numbers
- A129668 CA
256817 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3443 Villa LN, Napa, CA 94558
- Phone
- (707) 253-8280
- Enumerated
- Jun 20, 2008
- Record last updated
- Jul 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 110094017A MA
- Medicare enrollment
- Enrolled (PECOS I20160727002263); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 632 in California → Look up another NPI →
Also registered at 3443 Villa LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Keiko Aikawa, MDCardiovascular Disease Physician1194808121
- Brian Duguay, AUDAudiologist-Hearing Aid Fitter1558449561
- Manoj Eapen, M.D.Interventional Cardiology Physician1801892666
- David Freeto, M.D.Gastroenterology Physician1386735918
- William Huson, AU.D.Audiologist1013377605
- Sergio Manubens, MDInterventional Cardiology Physician1487634879
Verify Mark L. Villalon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A129668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
2,752 Medicare Part D claims for 368 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium332 claims
- Metoprolol Succinate247 claims
- Eliquis204 claims
- Amlodipine Besylate155 claims
- Metoprolol Tartrate137 claims
- Jardiance125 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.
Industry payments in 2024: $1,178.74
37 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Northbay Health Medical FoundationVacaville, CA
- Northbay Physicians Surgery Center, LLCFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark L. Villalon among 632 interventional cardiology physician records in California
Mark L. Villalon, MD is one of 632 interventional cardiology physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 31% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2008 · median 2001 among the 526 with a school on file
- Record last updated2016 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in California
There are 632 interventional cardiology physician records in California.
All 632 in California → Every provider in Napa → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Manoj Eapen, M.D.Napa, CA 945581801892666
- Sergio Manubens, MDNapa, CA 945581487634879
- James Srebro, MDNapa, CA 945581629048814
- Andrew Wong, MDNapa, CA 945581578543963
- Henry Gong, M.D.Pittsburg, CA 945651215982855
- Alejandro Prieto, MDPittsburg, CA 945651235191883
- Tracy Huynh, M.D.Dublin, CA 945681407906357
- Leonardo Clavijo, M.D.Saint Helena, CA 945741225088537
Common questions
What is Mark L. Villalon, MD's NPI number?
Mark L. Villalon, MD's National Provider Identifier (NPI) is 1720249816, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mark L. Villalon, MD located?
The NPPES record lists a practice address at 3443 Villa LN, Napa, CA, 94558. Phone: (707) 253-8280. Providers update this record themselves, so call before visiting.
How can I verify Mark L. Villalon, MD's license?
NPPES lists California license number A129668, 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 Mark L. Villalon, MD prescribe under Medicare Part D?
In 2024, Mark L. Villalon, MD had 2,752 Medicare Part D claims for 368 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.