Guillermo G. Zegarra, M.D.
Specialist · Bullhead City, AZ
Guillermo G. Zegarra, M.D. is a specialist with a practice address in Bullhead City, Arizona, and NPI 1568478493, issued on Jul 31, 2006. Check the license (Arizona 32150, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Guillermo G. Zegarra
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 32150 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2182 Highway 95, Bullhead City, AZ 86442
- Phone
- (928) 758-6420
- Enumerated
- Jul 31, 2006
- Record last updated
- Apr 2, 2024
- Fax
- (928) 758-6509
- Medicaid ID
- 932401 AS
- Medicare enrollment
- Enrolled (PECOS I20050509000540); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 747 in Arizona → Look up another NPI →
Also registered at 2182 Highway 95
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Courtney Mitchell, FNP-CFamily Nurse Practitioner1376141424
Verify Guillermo G. Zegarra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 32150Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.9 times the Medicare Part D claims of the average specialist in 2024
12,280 Medicare Part D claims for 817 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 572 claims were for opioids.
Most prescribed
- Lisinopril475 claims
- Ibuprofen474 claims
- Levothyroxine Sodium432 claims
- Metoprolol Tartrate432 claims
- Atorvastatin Calcium428 claims
- Metformin Hcl381 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $300.45
14 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Aban Care Clinic LLCBullhead City, AZ
- Colorado River Primary Care IncFort Mohave, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guillermo G. Zegarra among 747 specialist records in Arizona
Guillermo G. Zegarra, M.D. is one of 747 specialist records with a practice address in Arizona. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileYes · 16% of these records are
- Graduated1987 · median 1992 among the 117 with a school on file
- Record last updated2024 · 83% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Arizona
There are 747 specialist records in Arizona.
All 747 in Arizona → Every provider in Bullhead City → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Debe Johnson, MASSAGE THERAPISTBullhead City, AZ 864421245351238
- Deborah Todd, OTR,LMohave Valley, AZ 864401942358429
- Raquel Villasenor, LMT, NCBTMBFort Mohave, AZ 864261386082055
- Ilangovan Govindarajan, M.D., CMDKingman, AZ 864091295755759
- Arulasanam Kalanithi, MDKingman, AZ 864091518943281
- Joseph PoschnerKingman, AZ 864091194133868
- Belal Sharaf, MDKingman, AZ 864091538146816
- Violet LiewerLake Havasu City, AZ 864061942647243
Common questions
What is Guillermo G. Zegarra, M.D.'s NPI number?
Guillermo G. Zegarra, M.D.'s National Provider Identifier (NPI) is 1568478493, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo G. Zegarra, M.D. located?
The NPPES record lists a practice address at 2182 Highway 95, Bullhead City, AZ, 86442. Phone: (928) 758-6420. Providers update this record themselves, so call before visiting.
How can I verify Guillermo G. Zegarra, M.D.'s license?
NPPES lists Arizona license number 32150, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Guillermo G. Zegarra, M.D. prescribe under Medicare Part D?
In 2024, Guillermo G. Zegarra, M.D. had 12,280 Medicare Part D claims for 817 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.