Quick answers
- Does Alonso V. Pacheco accept Medicare assignment?
- Yes. Medicare's clinician data says Alonso V. Pacheco 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.
- How many Medicare patients does Alonso V. Pacheco see?
- In 2024, CMS data shows 462 Original Medicare patients and 134,338 services for Alonso V. Pacheco. This counts Original Medicare only and measures volume, not quality.
- What is Alonso V. Pacheco's NPI number?
- 1326187311. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Alonso V. Pacheco, 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.
| Original Medicare patients | 462 |
|---|---|
| Services billed to Medicare | 134,338 |
| Different services or procedures | 178 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)16,700 services
- Injection, oxaliplatin, 0.5 mg (J9263)8,900 services
- Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)7,715 services
- Injection, paclitaxel, 1 mg (J9267)7,240 services
- Injection, fosaprepitant, 1 mg (J1453)6,300 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).
- High blood pressure67%
- High cholesterol61%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)45%
- Arthritis40%
- Diabetes28%
- Chronic kidney disease27%
Hospitals where Alonso V. Pacheco works
Medicare's Facility Affiliation Data lists Alonso V. Pacheco 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.
- Mt San Rafael HospitalTrinidad, CO · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 061321
- Parkview Medical Center, IncPueblo, CO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 060020
- Spanish Peaks Regional Health CenterWalsenburg, CO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 061316
- St Mary-Corwin HospitalPueblo, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 060012
- St Thomas More HospitalCanon City, CO · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 061344
Practice locations
Addresses where Alonso V. Pacheco is enrolled with Medicare (CMS data updated October 2, 2026).
- 11750 W 2nd Place, Suite 150Lakewood, CO 80228 (303) 763‑4020
- 1800 Williams St, Suite 200Denver, CO 80218 (303) 388‑4876
- 2312 N Nevada Ave, Suite 400Colorado Springs, CO 80907 (719) 577‑2555
- 3027 N Circle DrColorado Springs, CO 80909 (719) 577‑2555
Group practices
Medicare enrollment lists Alonso V. Pacheco as a member of this group (CMS data updated October 2, 2026).
- Rocky Mountain Cancer Centers LLP132 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Lakewood
Clinicians with the same Medicare primary specialty in Lakewood, CO — not a recommendation.
Other clinicians in Rocky Mountain Cancer Centers LLP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Colorado School Of Medicine, Denver |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1326187311 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians