Marissa Lynn Matthews
- Medicare services, 2024
- 630
- Medicare patients, 2024
- 436
- Part D claims, 2024
- 276
- MIPS score, 2024
- 99
- Hospital affiliations
- 2
- Practice address
- 718 N Macomb St, Monroe, MI 48162
- Practice phone
- Call (734) 240-8400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Marissa Lynn Matthews is an emergency medicine physician in Monroe, Michigan
Marissa Matthews practices at ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System.
Marissa Matthews' NPI, 1386208551, was assigned on April 23, 2019. Marissa Matthews holds Michigan license 4301506874.
- NPI
- 1386208551NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325372618
- NPI enumeration date
- April 23, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 240-8400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marissa Lynn Matthews practices at ProMedica Monroe Regional Hospital in Monroe, Michigan
Marissa Matthews' primary practice is ProMedica Monroe Regional Hospital, at 718 N Macomb St, Monroe, MI 48162 in Monroe County. The practice phone is (734) 240-8400.
- ProMedica Monroe Regional Hospital718 N Macomb St, Monroe, MI 48162 · Monroe CountyPhone(734) 240-8400
Source: Dmand AI Affiliation Data
Marissa Lynn Matthews is affiliated with 2 sites of care and 2 medical groups
Marissa Matthews' primary practice is ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System. Marissa Matthews is also affiliated with McLaren Oakland. The medical group on file is Emergency Physicians of Northwest Ohio. Dmand AI also links Marissa Matthews to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marissa Lynn Matthews' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Matthews practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ProMedica Monroe Regional Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Marissa Lynn Matthews is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Marissa Matthews' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Marissa Matthews is licensed in Michigan.
Specialties and state licenses
- Emergency medicine, MichiganPrimary
Emergency medicine physicians near Marissa Matthews
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
Marissa Lynn Matthews billed Medicare for 630 services in 2024
CMS data shows 630 Medicare services from Marissa Matthews across 4 procedure codes in 2024, for 436 Medicare patients. Medicare paid $55,541 for them. Every service was in a facility, such as a hospital, rather than an office.
Marissa Matthews' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4582024: 4384%
- Tests and treatments
- 2023: 1642024: 19217%
Marissa Matthews compared with the Michigan median for emergency medicine physicians, 2024
- Marissa Matthews
- Michigan median
- Medicare services
- 630vs 2342.7 times
- Medicare patients
- 436vs 2142.0 times
- Part D claims
- 121vs 462.6 times
Medians across 1,937 emergency medicine physicians in Michigan with Dmand AI profiles that report each measure.
Marissa Matthews' 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
Marissa Lynn Matthews treated 436 Medicare patients in 2024, average age 74
CMS counts 436 Medicare patients who saw Marissa Matthews in 2024. The largest group is 65 to 74, with 162 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marissa Matthews' median patient age at 62, with 56% women.
Marissa Matthews' Medicare patients by age, 2024
Marissa Matthews' Medicare patients by sex, 2024
- Women22552%
- Men21148%
Chronic conditions among Marissa Matthews' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Mood disorders45%
- Diabetes44%
- Ischemic heart disease44%
- Chronic kidney disease43%
- Anxiety42%
Share of Medicare patients with each condition. A patient can have several.
Marissa Matthews' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marissa Lynn Matthews wrote 276 Medicare Part D claims in 2024
In 2024, Marissa Matthews wrote 276 Medicare Part D claims for 175 patients. 96% of them were for generic drugs. CMS names the drug for 121 of them, across 7 drugs with 11 or more claims each, at $476 in total drug cost. In 2023, CMS named 90 claims across 5 drugs.
Marissa Matthews' Part D claims by kind of drug, 2024
- Generic265 claims96%
- Brand-name11 claims4%
Marissa Matthews' 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 Marissa Matthews' Part D claims, 2024
- Opioids12%32 of 276 claims
- Antibiotics22%61 of 276 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: 902024: 12134%
Drugs named by CMS: 7 in 2024, 5 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
Marissa Lynn Matthews scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Marissa Matthews for performance year 2024, reported as part of a group. Marissa Matthews accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Marissa Matthews' MIPS scores, performance year 2024
- 99of 100Final score
- 96.5of 100Quality
- 40of 100Improvement Activities
- 90of 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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Sources for Marissa Lynn Matthews'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) |
| 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 Marissa Lynn Matthews
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marissa Lynn Matthews' NPI number?
Marissa Lynn Matthews' NPI number is 1386208551. It was assigned on April 23, 2019, and it is active in the NPI Registry.
What does Marissa Lynn Matthews specialize in?
Marissa Lynn Matthews is an emergency medicine physician in Monroe, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Marissa Lynn Matthews practice?
Marissa Matthews practices at 718 N Macomb St, Monroe, MI 48162. Marissa Matthews' primary practice is ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System. Dmand AI also links Marissa Matthews to 1 medical group.
What is Marissa Lynn Matthews' office phone number?
The practice phone on file for Marissa Matthews is (734) 240-8400.
What is Marissa Lynn Matthews' medical license number?
Marissa Matthews holds Michigan license 4301506874.
Which hospitals is Marissa Lynn Matthews affiliated with?
Marissa Matthews practices at ProMedica Monroe Regional Hospital in Monroe, Michigan. Marissa Matthews is also affiliated with McLaren Oakland.
What medical group is Marissa Lynn Matthews part of?
Marissa Matthews is linked to Emergency Physicians of Northwest Ohio. Dmand AI links Marissa Matthews to 1 more medical group.
Does Marissa Lynn Matthews accept Medicare?
Yes. CMS data shows Marissa Matthews billed Medicare for 630 services in 2024, and Marissa Matthews accepts Medicare assignment.
What is Marissa Lynn Matthews' MIPS score?
Marissa Matthews' MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
How many Medicare patients does Marissa Lynn Matthews see?
CMS counts 436 Medicare patients who saw Marissa Matthews in 2024, with an average age of 74.
Show 3 more questionsShow fewer questions
What services does Marissa Lynn Matthews bill to Medicare?
In 2024, Marissa Matthews' most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
What drugs does Marissa Lynn Matthews prescribe most?
In 2024 Medicare Part D data, Marissa Matthews' most prescribed drugs by claims were Ondansetron ODT, Prednisone and Tramadol HCl.
How long has Marissa Lynn Matthews been practicing?
Marissa Matthews graduated from medical school in 2019, 7 years ago.
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