Mark Villalon, MD
NPI 1720249816 · Interventional Cardiology Physician · Napa, CA
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Villalon, MD is a Interventional Cardiology Physician provider in Napa, CA (NPI 1720249816).
Provider details
- NPI number
- 1720249816
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A129668 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,769 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 886 | $145 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 254 | $237 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 249 | $73 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System, Remote Up to 30 Days93297 | 240 | $72 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 155 | $203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 332 | 107 |
| Metoprolol Succinate | 247 | 77 |
| Apixabanbrand: Eliquis | 204 | 60 |
| Amlodipine Besylate | 155 | 53 |
| Metoprolol Tartrate | 137 | 50 |
| Empagliflozinbrand: Jardiance | 125 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,179 across 37 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-20
- Last updated
- 2016-07-12
Frequently asked questions
- What is Mark Villalon's NPI number?
- Mark Villalon's National Provider Identifier (NPI) is 1720249816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Villalon's specialty?
- Mark Villalon is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Villalon located?
- Mark Villalon's practice location on file with NPPES is 3443 Villa Ln, Napa, CA 94558-6417.
- What is Mark Villalon's phone number?
- The practice phone number listed in the NPPES registry for Mark Villalon is (707) 253-8280.
- Does Mark Villalon accept Medicare?
- Mark Villalon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Villalon's NPI active?
- Yes — Mark Villalon's NPI (1720249816) is active in the NPPES registry as of the last update on 2016-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.