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Internal Medicine

Marcos Villarreal, MD

Works at hospitals in Lebanon, NH · Lewes, DE · Keene, NH … · New Hampshire, Delaware, Virginia

Summary

Dr. Marcos Villarreal, MD is an internal medicine doctor at 1 Medical Ctr Dr, Lebanon, NH 03756. Phone: (603) 650-5000. Accepts Medicare assignment. NPI 1265095160. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Marcos Villarreal, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Marcos Villarreal accept Medicare assignment?
Yes. Medicare's clinician data says Marcos Villarreal accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Marcos Villarreal's NPI number?
1265095160. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marcos Villarreal works

Medicare's Facility Affiliation Data lists Marcos Villarreal at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Marcos Villarreal is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marcos Villarreal as a member of these groups (CMS data updated October 2, 2026).

  • Mary Hitchcock Memorial Hospital1,280 clinicians in the group
  • Beebe Physician Network Inc.310 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Hampshire →

Other internal medicine doctors in Lebanon

Clinicians with the same Medicare primary specialty in Lebanon, NH — not a recommendation.

All internal medicine doctors in Lebanon →

Other clinicians in Mary Hitchcock Memorial Hospital

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1265095160
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians