Alan T. Villavicencio, MD

Medicare activity in 2024

Official CMS public-use data for Alan T. Villavicencio, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)92 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)74 services
3. Fusion of additional segment of spine (22614)68 services
4. Fusion of spine in lower back with partial removal of spine bone and disc (22633)38 services
5. Fusion of additional segment of spine with partial removal of spine bone and disc (22634)33 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• Arthritis75%
• High cholesterol69%
• High blood pressure65%
• Ischemic heart disease32%
• Depression24%
• Osteoporosis23%

Hospitals where Alan T. Villavicencio works

Medicare's Facility Affiliation Data lists Alan T. Villavicencio 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.

• Boulder Community HealthBoulder, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060027
• Longmont United HospitalLongmont, CO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 060003

Practice locations

Addresses where Alan T. Villavicencio is enrolled with Medicare (CMS data updated October 2, 2026).

• 2030 Mountain View Ave, Suite 210Longmont, CO 80501 (720) 652‑8930
• 22 S Adams StDenver, CO 80209 (303) 321‑2452

Group practices

Medicare enrollment lists Alan T. Villavicencio as a member of these groups (CMS data updated October 2, 2026).

• Legacy Healthcare Services Inc3,223 clinicians in the group
• Catholic Health Initiatives Colorado1,225 clinicians in the group

Specialties

• Neurosurgeryprimary

Find other Neurosurgery doctors in Colorado →

Other neurosurgeons in Colorado

Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.

• David M. Smith, MD
• Kimberly A. Mackey, MD
• Eric Momin, MD
• Rene O. Sanchez-Mejia, MD
• Ricky Medel, MD
• Allyson L. Alexander, MD
• Basheal M. Agrawal
• Matthew A. Piazza, MD

All neurosurgeons in Colorado →

Other clinicians in Legacy Healthcare Services Inc

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

• Max Shenin, DO
• Joni L. Fisher, PT
• Jingquan Jia, MD
• Gwendolen T. Buhr, MD
• Alberto J. Espay, MD
• Jessica Walker, MD

Clinician information

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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians