DR. MARCOS DANIEL VILLARREAL MD
NPI 1265095160
Internal Medicine in Fredericksburg, VA
About Dr. Marcos Daniel Villarreal Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARCOS DANIEL VILLARREAL MD (NPI 1265095160) is an individual internal medicine provider in Fredericksburg, Virginia, licensed in New Hampshire (35091) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Marcos Daniel Villarreal Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Marcos Villarreal reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lewes, DE 19958
- Reassigned Medicare billing, Delaware enrollment
- 382 clinicians in this Medicare group
Keene, NH 03431
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
Hampstead, NH 03841
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHCheshire Medical Center
Acute Care Hospitals · Keene, NHAlice Peck Day Memorial Hospital
Critical Access Hospitals · Lebanon, NHMary Washington Hospital
Acute Care Hospitals · Fredericksburg, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FREDERICKSBURG, VA 22401
FREDERICKSBURG, VA 22401
FREDERICKSBURG, VA 22401
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marcos Villarreal's NPI number?
The NPI number for Marcos Villarreal is 1265095160. It was assigned to this individual provider in the NPPES registry on April 16, 2019.
Where is Marcos Villarreal located?
Marcos Villarreal practices at 1101 Sam Perry Blvd Ste 305, Fredericksburg, VA 22401. The listed phone number is (540) 374-3290.
What is Marcos Villarreal's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Marcos Villarreal enrolled in Medicare?
Yes. Marcos Villarreal is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Marcos Villarreal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcos Villarreal reassigns Medicare benefits to 3 organizations: Beebe Physician Network, Inc. (Lewes, DE), Dartmouth-Hitchcock Clinic (Keene, NH) and Mary Hitchcock Memorial Hospital (Hampstead, NH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marcos Villarreal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marcos Villarreal accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next list Marcos Villarreal as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Marcos Villarreal affiliated with any hospitals?
According to CMS data, Marcos Villarreal is affiliated with Mary Hitchcock Memorial Hospital, Cheshire Medical Center, Alice Peck Day Memorial Hospital and Mary Washington Hospital.
When was this NPI record last updated?
The NPPES record for Marcos Villarreal was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Marcos Daniel Villarreal, MD · NPI 1265095160
Internal Medicine physician in Fredericksburg, Virginia. Individual provider, active in the CMS NPPES registry since April 16, 2019.
## Identity
- **NPI:** 1265095160 (Entity type: Individual)
- **Enumerated:** April 16, 2019
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 35091 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 1101 SAM PERRY BLVD STE 305, Fredericksburg, VA 22401-4465
- **Phone:** (540) 374-3290
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Beebe Physician Network, Inc. (NPI 1730133992, Lewes, DE); Dartmouth-Hitchcock Clinic (NPI 1174176861, Keene, NH); Mary Hitchcock Memorial Hospital (NPI 1699584219, Hampstead, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Southwestern Medical School At Dallas, class of 2019
## Record status
- **NPPES last updated:** December 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1265095160) · Data from the CMS NPPES public registry.