Marcos Daniel Villarreal, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

35091 Issued in NH

Practice address

1101 Sam Perry Blvd Ste 305
Fredericksburg, VA 22401-4465

Phone

(540) 374-3290

NPI assigned

Apr 16, 2019

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in VA, NH, DE3 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 3

Specialty

Internal Medicine

Education

University of Texas Southwestern Medical School at Dallas, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mary Hitchcock Memorial HospitalGroup PAC ID 4486561164, 1,269 clinicians

Beebe Physician Network Inc.Group PAC ID 5496744864, 301 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mary Hitchcock Memorial Hospital Hospital, Lebanon, NH, CCN 300003
• Beebe Medical Center Hospital, Lewes, DE, CCN 080007
• Cheshire Medical Center Hospital, Keene, NH, CCN 300019
• Alice Peck Day Memorial Hospital Hospital, Lebanon, NH, CCN 301305
• Mary Washington Hospital Hospital, Fredericksburg, VA, CCN 490022

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Beebe Physician Network Inc.

  dba Beebe Medical Group

  • Internal Medicine Physician
  • Lewes, DE
  • NPI 1730133992
  Medicare reassignment Care Compare group NPD
• Mary Hitchcock Memorial Hospital

  • General Acute Care Hospital
  • Lebanon, NH
  • NPI 1023092053

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Dartmouth-Hitchcock Clinic

  • Internal Medicine Physician
  • Lebanon, NH
  • NPI 1548210198
  Medicare reassignment NPD
• Mary Hitchcock Memorial Hospital

  dba Hampstead Hospital

  • Psychiatric Hospital
  • Hampstead, NH
  • NPI 1699584219
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Mary Washington Hospital Inc.

  • General Acute Care Hospital
  • Fredericksburg, VA
  • NPI 1942288527
  Care Compare affiliation
• Mary Washington Hospital, Inc.

  dba Mary Washington Cardiology

  • Cardiovascular Disease Physician
  • Fredericksburg, VA
  • NPI 1013089879

  Hospital

  Care Compare affiliation
• Mary Washington Hospital, Inc.

  dba Mary Washington Home Health Agency

  • Home Health Agency
  • Fredericksburg, VA
  • NPI 1407814163

  Hospital

  Care Compare affiliation
• Alice Peck Day Memorial Hospital

  • Critical Access Hospital
  • Lebanon, NH
  • NPI 1003803495
  Care Compare affiliation
• Alice Peck Day Memorial Hospital

  dba Physician Practices at Alice Peck Day

  • Family Medicine Physician
  • Lebanon, NH
  • NPI 1073569810

  Hospital

  Care Compare affiliation
• Alice Peck Day Memorial Hospital

  dba Womens Care Center at Alice Peck Day

  • Obstetrics & Gynecology Physician
  • Lebanon, NH
  • NPI 1093761892

  Hospital

  Care Compare affiliation
• Alice Peck Day Memorial Hospital

  dba Emergency Services at Alice Peck Day

  • General Practice Physician
  • Lebanon, NH
  • NPI 1295805950

  Hospital

  Care Compare affiliation
• Alice Peck Day Memorial Hospital

  • Urgent Care Clinic/Center
  • Lebanon, NH
  • NPI 1942002274

  Hospital

  Care Compare affiliation
• Alice Peck Day Memorial Hospital-Ecu

  dba Extended Care Facility

  • Skilled Nursing Facility
  • Lebanon, NH
  • NPI 1043207566

  Hospital

  Care Compare affiliation
• Beebe Medical Center, Inc.

  • General Acute Care Hospital
  • Lewes, DE
  • NPI 1821196486
  Care Compare affiliation
• Cheshire Medical Center

  • General Acute Care Hospital
  • Keene, NH
  • NPI 1629181516
  Care Compare affiliation
• Mary Hitchcock Memorial Hospital

  • General Acute Care Hospital
  • Lebanon, NH
  • NPI 1023092053
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1555372800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765843200000",
    "number": "1265095160",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 RED RIVER ST",
            "address_2": "UT AUSTIN DELL MEDICAL SCHOOL SETON INTERNAL MEDICINE",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787011918"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1101 SAM PERRY BLVD STE 305",
            "city": "FREDERICKSBURG",
            "state": "VA",
            "postal_code": "224014465",
            "telephone_number": "540-374-3290"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Lebanon",
            "state": "NH",
            "postal_code": "037561000",
            "country_code": "US",
            "telephone_number": "603-650-5000",
            "fax_number": "603-640-1228",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "232 Mitchell St Unit 102",
            "address_purpose": "LOCATION",
            "city": "Millsboro",
            "state": "DE",
            "postal_code": "199669412",
            "country_code": "US",
            "telephone_number": "302-648-7999",
            "fax_number": "302-645-7698",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "12100 Black Swan Dr Ste 104",
            "address_purpose": "LOCATION",
            "city": "Lewes",
            "state": "DE",
            "postal_code": "199584991",
            "country_code": "US",
            "telephone_number": "302-645-2244",
            "fax_number": "888-987-9645",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "UT Austin Dell Medical School Seton Internal Medicine",
            "address_2": "1500 Red River (Dell Seton Medical Center)",
            "address_purpose": "LOCATION",
            "city": "Austin",
            "state": "TX",
            "postal_code": "787011918",
            "country_code": "US",
            "telephone_number": "512-324-8355",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "VILLARREAL",
        "first_name": "MARCOS",
        "middle_name": "DANIEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-16",
        "last_updated": "2025-12-16",
        "certification_date": "2025-12-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NH",
            "license": "35091",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "VA",
            "license": "0101284157",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "BP10067181",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "DE",
            "license": "C1-0028811",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nivetha Vijayakumar, MD
• Serena Vilasi
• Diann M Vild, DDS
• Ana Ingry Villalobos
• Linda Ann Villalobos, M.D.
• David Phillip Villegas, P.A.-C
• Cindi Ann Vinciguerra
• Vip Medical Transportation LLC
• Shahab S Virani, M.D.
• Marhya Virgil

• Internal Medicine Physician in Fredericksburg, VA
• Providers in Fredericksburg, VA by specialty
• Internal Medicine Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.