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Individual provider Active NPI

Alan Thomas Villavicencio, MD

  • Neurological Surgery Physician
  • Longmont, CO
National Provider Identifier
1720033939
Registry record updated Feb 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurological Surgery PhysicianTaxonomy code 207T00000X
License
DR.0040687 Issued in CO
Practice address
2030 Mountain View Ave Ste 210
Longmont, CO 80501-3180
Phone
(303) 485-3560
Fax
(303) 485-3561
NPI assigned
May 24, 2006
Last updated
Feb 4, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 4, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurological Surgery Physician 207T00000X DR.0040687 CO Primary

Addresses

Primary practice location

2030 Mountain View Ave Ste 210
Longmont, CO 80501-3180

Mailing address

PO Box 9049
Boulder, CO 80301-9049
Phone (303) 938-5700

Other practice location 1

4743 Arapahoe Ave
Suite 202
Boulder, CO 80303-1113
Phone (303) 938-5700

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20091118000376 CO Practitioner - NeurosurgeryPractitioner - Neurology 6103820915 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Neurosurgery
Education
Harvard Medical School, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Catholic Health Initiatives ColoradoGroup PAC ID 8022927342, 1,230 clinicians
Legacy Healthcare Services IncGroup PAC ID 2163339722, 3,431 clinicians

Practice addresses (Care Compare)

2030 Mountain View Ave
Suite 210
Longmont, CO 80501-3180
Phone (720) 652-8930

22 S Adams St
Denver, CO 80209-2908
Phone (303) 321-2452

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Spinal fusion258
Laminectomy or laminotomy (partial removal of spine bones)83

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Catholic Health Initiatives Colorado CurrentSince Feb 1, 2026 Accepting new patients
Boulder Community Health Current Accepting new patients
Catholic Health Initiatives Colorado CurrentSince Feb 1, 2026 Accepting new patients
Catholic Health Initiatives Colorado Neurological Surgery Past Accepting new patients
Boulder Community Health Past Accepting new patients
Boulder Community Health Past Accepting new patients

Locations

2030 Mountain View Ave
Ste 210
Longmont, CO 80501
Phone (303) 684-1900

41 State Highway 67
Woodland Park, CO 80863
Phone (719) 686-0551

Organizations & group practices 9

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

Hospital & facility affiliations 36

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

View all 36

NPI Registry JSON

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

{
    "created_epoch": "1148428800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770163200000",
    "number": "1720033939",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9049",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803019049",
            "telephone_number": "303-938-5700",
            "fax_number": "303-998-0007"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2030 MOUNTAIN VIEW AVE STE 210",
            "city": "LONGMONT",
            "state": "CO",
            "postal_code": "805013180",
            "telephone_number": "303-485-3560",
            "fax_number": "303-485-3561"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4743 Arapahoe Ave",
            "address_2": "Suite 202",
            "address_purpose": "LOCATION",
            "city": "Boulder",
            "state": "CO",
            "postal_code": "803031113",
            "country_code": "US",
            "telephone_number": "303-938-5700",
            "fax_number": "303-998-0007",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "VILLAVICENCIO",
        "first_name": "ALAN",
        "middle_name": "THOMAS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-24",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "CO",
            "license": "DR.0040687",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Longmont, CO

Sources for this page

Verify at the official NPI Registry.