Matthew Joseph Lopez, MEd
- Medicare services, 2024
- 728
- Medicare patients, 2024
- 507
- Part D claims, 2024
- 305
- MIPS score, 2024
- 97
- Hospital affiliations
- 3
- Practice address
- 4001 J St, Sacramento, CA 95819
- Practice phone
- Call (916) 453-4453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Matthew Joseph Lopez is an emergency medicine physician in Sacramento, California
Matthew Lopez practices at Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health.
Matthew Lopez's NPI, 1033481593, was assigned on January 31, 2012. Matthew Lopez graduated from University of California, Davis School of Medicine in 2013. Matthew Lopez holds California license A148590.
- NPI
- 1033481593NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799077368
- NPI enumeration date
- January 31, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 453-4453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Matthew Joseph Lopez practices at Dignity Health - Mercy General Hospital in Sacramento, California
Matthew Lopez's primary practice is Dignity Health - Mercy General Hospital, at 4001 J St, Sacramento, CA 95819 in Sacramento County. The practice phone is (916) 453-4453.
- Dignity Health - Mercy General Hospital4001 J St, Sacramento, CA 95819 · Sacramento CountyPhone(916) 453-4453
Source: Dmand AI Affiliation Data
Matthew Joseph Lopez is affiliated with 4 sites of care and 1 medical group
Matthew Lopez's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Matthew Lopez is also affiliated with Dignity Health - Methodist Hospital of Sacramento. The medical group on file is Vituity. Dmand AI also links Matthew Lopez to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Matthew Joseph Lopez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matthew Lopez practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy General Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Matthew Joseph Lopez is one of 7,423 emergency medicine physicians in California
Emergency medicine is Matthew Lopez's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Matthew Lopez is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Matthew 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
Matthew Joseph Lopez billed Medicare for 728 services in 2024
CMS data shows 728 Medicare services from Matthew Lopez across 4 procedure codes in 2024, for 507 Medicare patients. Medicare paid $70,274 for them. Every service was in a facility, such as a hospital, rather than an office.
Matthew Lopez's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4982024: 5021%
- Tests and treatments
- 2023: 1662024: 22636%
Matthew Lopez compared with the California median for emergency medicine physicians, 2024
- Matthew Lopez
- California median
- Medicare services
- 728vs 2652.7 times
- Medicare patients
- 507vs 2432.1 times
- Part D claims
- 128vs 622.1 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Matthew Lopez's most billed Medicare procedure codes, 2024
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
Matthew Joseph Lopez treated 507 Medicare patients in 2024, average age 72
CMS counts 507 Medicare patients who saw Matthew Lopez in 2024. The largest group is 65 to 74, with 180 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 66% are also on Medicaid. Their average risk score is 2.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Matthew Lopez's median patient age at 46, with 58% women.
Matthew Lopez's Medicare patients by age, 2024
Matthew Lopez's Medicare patients by sex, 2024
- Women29157%
- Men21643%
Chronic conditions among Matthew Lopez's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes47%
- Chronic kidney disease43%
- Mood disorders40%
- Ischemic heart disease38%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Matthew 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 46
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matthew Joseph Lopez wrote 305 Medicare Part D claims in 2024
In 2024, Matthew Lopez wrote 305 Medicare Part D claims for 200 patients. 92% of them were for generic drugs. CMS names the drug for 128 of them, across 7 drugs with 11 or more claims each, at $713 in total drug cost. In 2023, CMS named 159 claims across 7 drugs.
Matthew Lopez's Part D claims by kind of drug, 2024
- Generic282 claims92%
- Brand-name and other23 claims8%
Matthew 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 Matthew Lopez's Part D claims, 2024
- Opioids13%40 of 305 claims
- Antibiotics25%75 of 305 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: 1592024: 12819%
Drugs named by CMS: 7 in 2024, 7 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
Matthew Joseph Lopez scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Matthew Lopez for performance year 2024, reported as part of a group. Matthew Lopez accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Matthew Lopez's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Matthew Joseph Lopez received $225 in industry payments from 2023 to 2024
CMS Open Payments shows 2 general payments to Matthew Lopez from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 78% of the total. Abbott Laboratories paid the most, $175.
General payments to Matthew Lopez by program year, 2023 to 2024
General payments to Matthew Lopez by kind, 2023 to 2024
- Food and beverage$17578%
- Speaker and faculty fees$5022%
Companies that paid Matthew Lopez the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Matthew Joseph Lopez graduated from University of California, Davis School of Medicine
Matthew Lopez graduated from University of California, Davis School of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Matthew Joseph 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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 Matthew Joseph 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 Matthew Joseph Lopez's NPI number?
Matthew Joseph Lopez's NPI number is 1033481593. It was assigned on January 31, 2012, and it is active in the NPI Registry.
What does Matthew Joseph Lopez specialize in?
Matthew Joseph Lopez is an emergency medicine physician in Sacramento, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Matthew Joseph Lopez practice?
Matthew Lopez practices at 4001 J St, Sacramento, CA 95819. Matthew Lopez's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dmand AI also links Matthew Lopez to 1 hospital and 1 group practice or clinic.
What is Matthew Joseph Lopez's office phone number?
The practice phone on file for Matthew Lopez is (916) 453-4453.
What is Matthew Joseph Lopez's medical license number?
Matthew Lopez holds California license A148590.
Which hospitals is Matthew Joseph Lopez affiliated with?
Matthew Lopez practices at Dignity Health - Mercy General Hospital in Sacramento, California. Matthew Lopez is also affiliated with Dignity Health - Methodist Hospital of Sacramento. Dmand AI links Matthew Lopez to 1 more hospital.
What medical group is Matthew Joseph Lopez part of?
Matthew Lopez is linked to Vituity.
Does Matthew Joseph Lopez accept Medicare?
Yes. CMS data shows Matthew Lopez billed Medicare for 728 services in 2024, and Matthew Lopez accepts Medicare assignment.
What is Matthew Joseph Lopez's MIPS score?
Matthew Lopez's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Matthew Joseph Lopez see?
CMS counts 507 Medicare patients who saw Matthew Lopez in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Matthew Joseph Lopez bill to Medicare?
In 2024, Matthew Lopez's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Matthew Joseph Lopez go to medical school?
Matthew Lopez graduated from University of California, Davis School of Medicine in 2013.
What drugs does Matthew Joseph Lopez prescribe most?
In 2024 Medicare Part D data, Matthew Lopez's most prescribed drugs by claims were Ibuprofen, Hydrocodone-Acetaminophen and Prednisone.
Has Matthew Joseph Lopez received payments from drug or device companies?
CMS Open Payments shows $225 in general payments to Matthew Lopez from 2 companies from 2023 to 2024. The largest total came from Abbott Laboratories.
How long has Matthew Joseph Lopez been practicing?
Matthew Lopez graduated from medical school in 2013, 13 years ago.
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