Quick answers
- Does Guillermo G. Zegarra accept Medicare assignment?
- Yes. Medicare's clinician data says Guillermo G. Zegarra 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 Guillermo G. Zegarra see?
- In 2024, CMS data shows 431 Original Medicare patients and 2,713 services for Guillermo G. Zegarra. This counts Original Medicare only and measures volume, not quality.
- What is Guillermo G. Zegarra's NPI number?
- 1568478493. 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 Guillermo G. Zegarra, 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 | 431 |
|---|---|
| Services billed to Medicare | 2,713 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,152 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)546 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)403 services
- Hospital discharge day management, 30 minutes or less (99238)184 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)178 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 pressure75%
- High cholesterol75%
- Diabetes56%
- Arthritis44%
- Ischemic heart disease30%
- Heart failure30%
Hospitals where Guillermo G. Zegarra works
Medicare's Facility Affiliation Data lists Guillermo G. Zegarra 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.
- Kingman Regional Medical CenterKingman, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030055
- Valley View Medical CenterFort Mohave, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030117
- Western Arizona Regional Medical CenterBullhead City, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030101
Practice locations
Addresses where Guillermo G. Zegarra is enrolled with Medicare (CMS data updated October 2, 2026).
- 1510 E Wagon Wheel Ln, Suite 104Fort Mohave, AZ 86426 (928) 248‑0518
- 2182 Hway, Suite 95Bullhead City, AZ 86442 (928) 758‑6420
- 2585 Miracle MileBullhead City, AZ 86442
- 2585 Miracle Mile, Suite 107Bullhead City, AZ 86442
Group practices
Medicare enrollment lists Guillermo G. Zegarra as a member of these groups (CMS data updated October 2, 2026).
- Paragon Physical Therapy and Rehab LLC94 clinicians in the group
- Colorado River Primary Care Inc3 clinicians in the group
- Aban Care Clinic LLC2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Fort Mohave
Clinicians with the same Medicare primary specialty in Fort Mohave, AZ — not a recommendation.
Other clinicians in Paragon Physical Therapy and Rehab LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 (39 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) | 1568478493 |
| 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