Guillermo G. Zegarra, M.D.
NPI 1568478493ActiveIndividual· Specialist· Bullhead City, AZ
Specialist (M.D.) with Paragon Physical Therapy and Rehab LLC and 2 other groups, practicing in Bullhead City, Arizona. Their prescriptions cost Medicare Part D more than their services did: $963,100 for 12,280 claims, against $180,940 paid for services in 2024. Xeris Pharmaceuticals, Inc. was the largest of 8 companies reporting payments in 2025, $322.12 in all, mostly food and beverage. Lists Kingman Regional Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1568478493 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 31, 2006 |
| Last updated in NPPES | Apr 2, 2024 |
| Certified by provider | Apr 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 32150 | AZ |
| Internal Medicine | 207R00000X | 32150 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 431 |
|---|---|
| Services billed | 2,713 across 27 procedure codes |
| Paid by Medicare | $180,940 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,280 · 24,050 30-day fills |
|---|---|
| Patients | 817 |
| Total drug cost | $963,100 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Paragon Physical Therapy and Rehab LLCBullhead City, AZ · 94 clinicians
- Colorado River Primary Care IncFort Mohave, AZ · 3 clinicians
- Aban Care Clinic LLCBullhead City, AZ · 2 clinicians
Hospital affiliations
- Kingman Regional Medical CenterKingman, AZ
- Valley View Medical CenterFort Mohave, AZ
- Western Arizona Regional Medical CenterBullhead City, AZ
Other facilities
- River Valley Home HealthHome health agency · Lake Havasu, AZ
- Valley View Home HealthHome health agency · Bullhead City, AZ
- The Legacy Rehab & Care CenterNursing home · Bullhead City, AZ
Industry payments (Open Payments)
- 2025$322.12 · 17 payments from 8 companies
- 2024$300.45 · 14 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Xeris Pharmaceuticals, Inc. | $98.57 | 5 |
| Pfizer Inc. | $69.70 | 3 |
| Exact Sciences Corporation | $50.02 | 3 |
| Astrazeneca Pharmaceuticals LP | $36.72 | 2 |
| Vertex Pharmaceuticals Incorporated | $19.32 | 1 |
What the 2025 payments were for
- Food and Beverage$322.12 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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