Dr. Maria G. Lopez, MD
- Medicare services, 2023
- 134
- Part D claims, 2024
- 205
- Hospital affiliations
- 4
- Industry payments
- $413
- Medical groups
- 6
- Practice address
- 14662 Newport Ave, Tustin, CA 92780
- Practice phone
- Call (714) 619-7700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lopez's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Maria G. Lopez is an emergency medicine physician in Tustin, California
Dr. Lopez practices at Foothill Regional Medical Center in Tustin, California, part of Astrana Health.
Dr. Lopez's NPI, 1134162290, was assigned on June 14, 2006. Dr. Lopez graduated from David Geffen School of Medicine at UCLA in 1997. Dr. Lopez holds California license A68740.
- NPI
- 1134162290NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678512977
- NPI enumeration date
- June 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 619-7700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maria G. Lopez practices at Foothill Regional Medical Center in Tustin, California
Dr. Lopez's primary practice is Foothill Regional Medical Center, at 14662 Newport Ave, Tustin, CA 92780 in Orange County. The practice phone is (714) 619-7700.
- Foothill Regional Medical Center14662 Newport Ave, Tustin, CA 92780 · Orange CountyPhone(714) 619-7700
Source: Dmand AI Affiliation Data
Dr. Maria G. Lopez is affiliated with 4 sites of care and 6 medical groups
Dr. Lopez's primary practice is Foothill Regional Medical Center in Tustin, California, part of Astrana Health. Dr. Lopez is also affiliated with Sharp Coronado Hospital. The medical group on file is Can Emergency Physicians Medical Group. Dmand AI also links Dr. Lopez to 2 more hospitals and 5 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Maria G. Lopez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lopez practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Foothill Regional Medical Center | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Maria G. Lopez is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Lopez's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Lopez's licenses on file in 2 states: California and West Virginia.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- West Virginia license
Emergency medicine physicians near Dr. Lopez
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Maria G. Lopez billed Medicare for 134 services in 2023
CMS data shows 134 Medicare services from Dr. Lopez across 4 procedure codes in 2023. Medicare paid $13,162 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lopez's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1982023: 10149%
- Tests and treatments
- 2022: 902023: 3363%
Dr. Lopez compared with the California median for emergency medicine physicians, 2023
- Dr. Lopez
- California median
- Medicare services
- 134vs 26549% below
- Part D claims
- 94vs 6252% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Lopez's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Maria G. Lopez's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Lopez's median patient age at 44, with 47% women.
Dr. Lopez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women47%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Maria G. Lopez wrote 205 Medicare Part D claims in 2024
In 2024, Dr. Lopez wrote 205 Medicare Part D claims for 112 patients. 96% of them were for generic drugs. CMS names the drug for 94 of them, across 5 drugs with 11 or more claims each, at $768 in total drug cost. In 2023, CMS named 14 claims across 1 drug.
Dr. Lopez's Part D claims by kind of drug, 2024
- Generic196 claims96%
- Brand-name and other9 claims4%
Dr. Lopez's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Lopez's Part D claims, 2024
- Opioids6%12 of 205 claims
- Antibiotics30%61 of 205 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 142024: 94571%
Drugs named by CMS: 5 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Maria G. Lopez takes part in Medicare
Dr. Lopez accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Maria G. Lopez received $413 in industry payments from 2016 to 2025
CMS Open Payments shows 16 general payments to Dr. Lopez from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $97.
General payments to Dr. Lopez by program year, 2016 to 2025
Companies that paid Dr. Lopez the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Maria G. Lopez graduated from David Geffen School of Medicine at UCLA
Dr. Lopez graduated from David Geffen School of Medicine at UCLA in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Maria G. Lopez accepts plans from 2 insurance carriers
Dr. Lopez is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
- NV State Medicaid
Plan types Dr. Lopez accepts, by number of carriers
- Medicaid1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Maria G. Lopez's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Maria G. Lopez
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Maria G. Lopez's NPI number?
Dr. Maria G. Lopez's NPI number is 1134162290. It was assigned on June 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Maria G. Lopez?
Dr. Maria G. Lopez is an emergency medicine physician in Tustin, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Maria G. Lopez practice?
Dr. Lopez practices at 14662 Newport Ave, Tustin, CA 92780. Dr. Lopez's primary practice is Foothill Regional Medical Center in Tustin, California, part of Astrana Health. Dmand AI also links Dr. Lopez to 2 hospitals and 5 medical groups.
What is Dr. Maria G. Lopez's office phone number?
The practice phone on file for Dr. Lopez is (714) 619-7700.
What is Dr. Maria G. Lopez's medical license number?
Dr. Lopez holds California license A68740, one of the licenses on file in 2 states.
Which states has Dr. Maria G. Lopez been licensed in?
Dmand AI has state licenses on file for Dr. Lopez in California (1999 to 2026) and West Virginia (since 2014).
Which hospitals is Dr. Maria G. Lopez affiliated with?
Dr. Lopez practices at Foothill Regional Medical Center in Tustin, California. Dr. Lopez is also affiliated with Sharp Coronado Hospital. Dmand AI links Dr. Lopez to 2 more hospitals.
What medical group is Dr. Maria G. Lopez part of?
Dr. Lopez is linked to Can Emergency Physicians Medical Group. Dmand AI links Dr. Lopez to 5 more medical groups.
Does Dr. Maria G. Lopez accept Medicare?
Yes. CMS data shows Dr. Lopez billed Medicare for 134 services in 2023, and Dr. Lopez accepts Medicare assignment.
What services does Dr. Maria G. Lopez bill to Medicare?
In 2023, Dr. Lopez's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
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Where did Dr. Maria G. Lopez go to medical school?
Dr. Lopez graduated from David Geffen School of Medicine at UCLA in 1997.
What drugs does Dr. Maria G. Lopez prescribe most?
In 2024 Medicare Part D data, Dr. Lopez's most prescribed drugs by claims were Naproxen, Cephalexin and Prednisone.
Has Dr. Maria G. Lopez received payments from drug or device companies?
CMS Open Payments shows $413 in general payments to Dr. Lopez from 10 companies from 2016 to 2025. The largest total came from Abiomed.
How long has Dr. Maria G. Lopez been practicing?
Dr. Lopez graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Maria G. Lopez accept?
Dr. Lopez is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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