Guillermo Zegarra, M.D.
NPI 1568478493 · Specialist · Bullhead City, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guillermo Zegarra, M.D. is a Specialist provider in Bullhead City, AZ (NPI 1568478493).
Provider details
- NPI number
- 1568478493
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 32150 (AZ)
Specialties & taxonomies
Other Service Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,659 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,152 | $75 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 546 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 403 | $120 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 184 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 178 | $124 |
| Advance Care Planning, First 30 Minutes99497 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 151 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 475 | 160 |
| Ibuprofen | 474 | 199 |
| Metoprolol Tartrate | 432 | 162 |
| Levothyroxine Sodium | 432 | 128 |
| Atorvastatin Calcium | 428 | 157 |
| Metformin Hcl | 381 | 131 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$300 across 14 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1510 E Wagon Wheel Ln Ste 104Fort Mohave, AZ 86426-6698Phone: (928) 248-0518Fax: (928) 514-2823
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2024-04-02
- Certified
- 2024-04-02
Frequently asked questions
- What is Guillermo Zegarra's NPI number?
- Guillermo Zegarra's National Provider Identifier (NPI) is 1568478493, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Zegarra's specialty?
- Guillermo Zegarra is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Guillermo Zegarra located?
- Guillermo Zegarra's practice location on file with NPPES is 2182 Highway 95, Bullhead City, AZ 86442-6044.
- What is Guillermo Zegarra's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Zegarra is (928) 758-6420.
- Does Guillermo Zegarra accept Medicare?
- Guillermo Zegarra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guillermo Zegarra's NPI active?
- Yes — Guillermo Zegarra's NPI (1568478493) is active in the NPPES registry as of the last update on 2024-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.