Gustavo Lopez, MD
NPI 1023247202 · Family Medicine Physician · Tolleson, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gustavo Lopez, MD is a Family Medicine Physician provider in Tolleson, AZ (NPI 1023247202).
Provider details
- NPI number
- 1023247202
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42153 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,104 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 408 | $122 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 206 | $9 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 88 | $3 |
| Advance Care Planning, First 30 Minutes99497 | 84 | $77 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 48 | $170 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 47 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 143 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 709 | 243 |
| Metformin Hcl | 529 | 191 |
| Lisinopril | 442 | 157 |
| Alendronate Sodium | 405 | 131 |
| Tamsulosin Hcl | 377 | 138 |
| Gabapentin | 365 | 141 |
| Losartan Potassium | 365 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$229 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
Registry dates
- Enumerated
- 2009-07-08
- Last updated
- 2018-12-26
Frequently asked questions
- What is Gustavo Lopez's NPI number?
- Gustavo Lopez's National Provider Identifier (NPI) is 1023247202, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gustavo Lopez's specialty?
- Gustavo Lopez is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gustavo Lopez located?
- Gustavo Lopez's practice location on file with NPPES is 9169 W Van Buren St, Tolleson, AZ 85353-2942.
- What is Gustavo Lopez's phone number?
- The practice phone number listed in the NPPES registry for Gustavo Lopez is (602) 283-5732.
- Does Gustavo Lopez accept Medicare?
- Gustavo Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gustavo Lopez's NPI active?
- Yes — Gustavo Lopez's NPI (1023247202) is active in the NPPES registry as of the last update on 2018-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.