NPPES file of Aug 9, 2026

Gustavo A. Lopez, MD

Family Medicine Physician · Tolleson, AZ

Gustavo A. Lopez, MD is a family medicine physician with a practice address in Tolleson, Arizona, and NPI 1023247202, issued on Jul 8, 2009. Check the license (Arizona 42153, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023247202
Name
Gustavo A. Lopez
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
42153 AZ
Self-reported in NPPES; status is on the state search
Practice location
9169 W Van Buren St, Tolleson, AZ 85353
Phone
(602) 283-5732
Enumerated
Jul 8, 2009
Record last updated
Dec 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(602) 314-4579
Medicaid ID
441076 AZ
Medicare enrollment
Enrolled (PECOS I20090901000734); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9169 W Van Buren St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Barbara Cortright, PA-CPhysician Assistant1871041418
  2. Carmen Duarte, FNPFamily Nurse Practitioner1609379981
  3. Carmen Guerra Sosa, MDFamily Medicine Physician1699428235
  4. Karen Rodriguez Lopez, PAPhysician Assistant1972335677
  5. Stephanie SalasFamily Nurse Practitioner1912789900

Verify Gustavo A. Lopez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 42153
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.2 times the Medicare Part D claims of the average family medicine physician in 2024

11,398 Medicare Part D claims for 675 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 197 claims were for opioids.

  1. Gustavo Lopez11,398
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium709 claims
  2. Metformin Hcl529 claims
  3. Lisinopril442 claims
  4. Alendronate Sodium405 claims
  5. Tamsulosin Hcl377 claims
  6. Gabapentin365 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: $228.70

14 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gustavo Lopez$228.70
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. American Family Medicine LLCTolleson, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gustavo A. Lopez among 3,119 family medicine physician records in Arizona

Gustavo A. Lopez, MD is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.

  • NPI issued2009 · 60% of these records are older, 38% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2002 · median 2006 among the 1,775 with a school on file
  • Record last updated2018 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 family medicine physician records list a practice address in Tolleson

They are 3 of the 228 NPPES records with a practice address in Tolleson, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Carmen Guerra Sosa, MDTolleson, AZ 853531699428235
  2. Raymond Valdivia, M.D.Tolleson, AZ 853531417069774
  3. Megan Blackburn, MDSun City, AZ 853511457334450
  4. Maria Gonzalez Berlari, MDSun City, AZ 853511861665796
  5. Alicia Guice, M.D.Sun City, AZ 853511295821973
  6. Dreana Janssen, DOSun City, AZ 853511558396051
  7. Traci Jensen, D.O.Sun City, AZ 853511053595041
  8. Cynthia Medina, D.O.Sun City, AZ 853511710064183

Common questions

What is Gustavo A. Lopez, MD's NPI number?

Gustavo A. Lopez, MD's National Provider Identifier (NPI) is 1023247202, issued on Jul 8, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Gustavo A. Lopez, MD located?

The NPPES record lists a practice address at 9169 W Van Buren St, Tolleson, AZ, 85353. Phone: (602) 283-5732. Providers update this record themselves, so call before visiting.

How can I verify Gustavo A. Lopez, MD's license?

NPPES lists Arizona license number 42153, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gustavo A. Lopez, MD prescribe under Medicare Part D?

In 2024, Gustavo A. Lopez, MD had 11,398 Medicare Part D claims for 675 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.