Dr. Mark L. Villalon, MD

  • Fairfield, CA
  • Interventional cardiologist
NPI1720249816PAC ID4880828813
Medicare services, 2024
2,821
Medicare patients, 2024
936
Part D claims, 2024
2,752
Publications
4
Hospital affiliations
2
Practice address
1200 B Gale Wilson Blvd, Fairfield, CA 94533
Practice phone
Call (707) 646-5000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

NorthBay Medical Center

Hospital · Fairfield, California

See all 8 affiliations

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Dr. Mark L. Villalon is an interventional cardiologist in Fairfield, California

Dr. Villalon practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.

Dr. Villalon's NPI, 1720249816, was assigned on June 20, 2008. Dr. Villalon graduated from Drexel University College Of Medicine in 2008. Dr. Villalon holds California license A129668.

NPI and contact details
Medicare PAC ID
4880828813
NPI enumeration date
June 20, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(707) 646-5000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark L. Villalon practices at NorthBay Medical Center in Fairfield, California

Dr. Villalon's primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.

Source: Dmand AI Affiliation Data

Dr. Mark L. Villalon is affiliated with 4 sites of care and 4 medical groups

Dr. Villalon's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dr. Villalon is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is NorthBay Medical Center. Dmand AI also links Dr. Villalon to 3 more medical groups and 2 group practices and clinics, each named with a free account.

See all 8 affiliations for Dr. Villalon

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark L. Villalon's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Villalon practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
NorthBay Medical CenterAvailable with a free account
+3 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Mark L. Villalon is one of 582 interventional cardiologists in California

Interventional cardiology is Dr. Villalon's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Villalon is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Villalon's licenses on file in 2 states: California and Massachusetts.

Specialties and state licenses

  • Interventional cardiology, CaliforniaPrimaryLicense A129668 · 2014 to 2026 · taxonomy 207RI0011X
  • Internal medicine, MassachusettsLicense 256817 · 2013 to 2016 · taxonomy 207R00000X

Clinical focus

Dmand AI lists angioplasty and cardiac catheterization among the conditions Dr. Villalon treats.

Interventional cardiologists near Dr. Villalon

Counts of interventional cardiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Mark L. Villalon billed Medicare for 2,821 services in 2024

CMS data shows 2,821 Medicare services from Dr. Villalon across 31 procedure codes in 2024, for 936 Medicare patients. Medicare paid $281,373 for them.

Medicare services, 20242,821
Medicare patients936
Paid by Medicare$281,373
Procedure codes31

Dr. Villalon's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,5192024: 1,4008%
Tests and treatments
2023: 1,2942024: 1,2751%
Other services
2023: 02024: 68
Drugs given in the office
2023: 882024: 5241%
Imaging
2023: 702024: 1579%
Surgery
2023: 112024: 11No change

Where Dr. Villalon's Medicare services took place, 2024

  • In an office1,94569%
  • In a facility87631%

Dr. Villalon compared with the California median for interventional cardiologists, 2024

  • Dr. Villalon
  • California median
Medicare services
2,821vs 2,38718% above
Medicare patients
936vs 75125% above
Part D claims
2,522vs 1,82638% above

Medians across 573 interventional cardiologists in California with Dmand AI profiles that report each measure.

Dr. Villalon's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Villalon

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Villalon and other interventional cardiologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark L. Villalon treated 936 Medicare patients in 2024, average age 76

CMS counts 936 Medicare patients who saw Dr. Villalon in 2024. The largest group is 65 to 74, with 336 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.97, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Villalon's median patient age at 65, with 49% women.

Medicare patients, 2024936
Average age76
Average risk score1.97
Also on Medicaid32%

Dr. Villalon's Medicare patients by age, 2024

Dr. Villalon's Medicare patients by sex, 2024

  • Women50854%
  • Men42846%

Chronic conditions among Dr. Villalon's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease56%
  4. Arthritis47%
  5. Diabetes45%
  6. Heart failure43%
  7. Chronic kidney disease41%
  8. Atrial fibrillation40%

Share of Medicare patients with each condition. A patient can have several.

Dr. Villalon's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women49%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark L. Villalon wrote 2,752 Medicare Part D claims in 2024

In 2024, Dr. Villalon wrote 2,752 Medicare Part D claims for 368 patients. 80% of them were for generic drugs. CMS names the drug for 2,522 of them, across 42 drugs with 11 or more claims each, at $632,609 in total drug cost. In 2023, CMS named 2,187 claims across 37 drugs.

Part D claims, 20242,752
Drugs named by CMS42
Total drug cost$632,609
Part D patients368

Dr. Villalon's Part D claims by kind of drug, 2024

  • Generic2,207 claims80%
  • Brand-name545 claims20%

Dr. Villalon's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,1872024: 2,52215%

Drugs named by CMS: 42 in 2024, 37 in 2023.

See all prescribing by Dr. Villalon

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Mark L. Villalon ranks in the 75th percentile for coronary angioplasty and stenting in Medicare

Dr. Villalon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Villalon as offering telehealth. CMS counts 39 procedures of coronary angioplasty and stenting by Dr. Villalon, more than 75% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Villalon ranks in Medicare procedure volume

Coronary angioplasty and stenting
75th percentile39 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Mark L. Villalon has 4 publications on record

Dmand AI links 4 papers to Dr. Villalon, published from 2010 to 2013. 2010 was the busiest year, with 2. The most frequent topics are Atrial Fibrillation. Dr. Villalon's most frequent co-authors are David Dionne McManus, MD and Lisa Marie Sullivan, MD.

Papers4
Years published2010 to 2013

Topics Dr. Villalon writes about most

  • Atrial Fibrillation

Dr. Villalon's most frequent co-authors

Recent publications by Dr. Villalon

See all 4 publications and co-authors

See who Dr. Villalon researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Villalon works with, so you can find a warm path to the right interventional cardiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mark L. Villalon received $13,816 in industry payments from 2016 to 2025

CMS Open Payments shows 297 general payments to Dr. Villalon from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 75% of the total. Edwards Lifesciences Corporation paid the most, $2,637.

General payments to Dr. Villalon by program year, 2016 to 2025

General payments to Dr. Villalon by kind, 2016 to 2025

$13.8Kin total
  • Food and beverage$10,38875%
  • Travel and lodging$3,41025%
  • Education$180%

Companies that paid Dr. Villalon the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Villalon

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark L. Villalon has 1 award and honors on record

Dmand AI lists 1 award for Dr. Villalon, most recently Alpha Omega Alpha in 2014.

Awards and honors for Dr. Villalon

  1. 2014
    • Alpha Omega Alpha

Source: Dmand AI Professional Profile Data

Dr. Mark L. Villalon graduated from Drexel University College Of Medicine

Dr. Villalon graduated from Drexel University College Of Medicine in 2008. Dr. Villalon is a member of ACC.

  1. Medical schoolDrexel University College Of Medicine
  2. Board certified in cardiovascular diseaseAmerican Board of Internal Medicine
  3. Board certified in interventional cardiologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark L. Villalon accepts plans from 15 insurance carriers

Dr. Villalon is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Villalon accepts, by number of carriers

  1. Medicare8
  2. PPO8
  3. HMO6
  4. EPO4
  5. POS4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark L. Villalon's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark L. Villalon

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Mark L. Villalon's NPI number?

Dr. Mark L. Villalon's NPI number is 1720249816. It was assigned on June 20, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark L. Villalon?

Dr. Mark L. Villalon is an interventional cardiologist in Fairfield, California. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).

Where does Dr. Mark L. Villalon practice?

Dr. Villalon practices at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. Dr. Villalon's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dmand AI also links Dr. Villalon to 3 medical groups and 2 group practices and clinics.

What is Dr. Mark L. Villalon's office phone number?

The practice phone on file for Dr. Villalon is (707) 646-5000.

What is Dr. Mark L. Villalon's medical license number?

Dr. Villalon holds California license A129668, one of the licenses on file in 2 states.

Which states has Dr. Mark L. Villalon been licensed in?

Dmand AI has state licenses on file for Dr. Villalon in California (2014 to 2026) and Massachusetts (2013 to 2016).

Which hospitals is Dr. Mark L. Villalon affiliated with?

Dr. Villalon practices at NorthBay Medical Center in Fairfield, California. Dr. Villalon is also affiliated with Sutter Medical Center, Sacramento.

What medical group is Dr. Mark L. Villalon part of?

Dr. Villalon is linked to NorthBay Medical Center. Dmand AI links Dr. Villalon to 3 more medical groups.

Does Dr. Mark L. Villalon accept Medicare?

Yes. CMS data shows Dr. Villalon billed Medicare for 2,821 services in 2024, and Dr. Villalon accepts Medicare assignment.

Does Dr. Mark L. Villalon offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Villalon as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Mark L. Villalon see?

CMS counts 936 Medicare patients who saw Dr. Villalon in 2024, with an average age of 76.

Is Dr. Mark L. Villalon board certified?

Yes. Dr. Villalon is board certified in cardiovascular disease by the American Board of Internal Medicine.

What services does Dr. Mark L. Villalon bill to Medicare?

In 2024, Dr. Villalon's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93306) and heart test or procedure (93297).

Where did Dr. Mark L. Villalon go to medical school?

Dr. Villalon graduated from Drexel University College Of Medicine in 2008.

What drugs does Dr. Mark L. Villalon prescribe most?

In 2024 Medicare Part D data, Dr. Villalon's most prescribed drugs by claims were Atorvastatin Calcium, Metoprolol Succinate and Eliquis.

Has Dr. Mark L. Villalon received payments from drug or device companies?

CMS Open Payments shows $13,816 in general payments to Dr. Villalon from 37 companies from 2016 to 2025. The largest total came from Edwards Lifesciences Corporation.

How long has Dr. Mark L. Villalon been practicing?

Dr. Villalon graduated from medical school in 2008, 18 years ago.

Does Dr. Mark L. Villalon do research?

Dmand AI links 4 publications to Dr. Villalon, published from 2010 to 2013.

Who does Dr. Mark L. Villalon publish with?

Dr. Villalon's most frequent co-authors are David Dionne McManus, MD (1 shared paper) and Lisa Marie Sullivan, MD (1 shared paper).

What insurance does Dr. Mark L. Villalon accept?

Dr. Villalon is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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