Dr. Maria V. Ruiz, MD
- Medicare services, 2024
- 429
- Medicare patients, 2024
- 353
- Part D claims, 2024
- 110
- Hospital affiliations
- 1
- Industry payments
- $108
- Practice address
- 202 S Park St, Madison, WI 53715
- Practice phone
- Call (608) 417-6210
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ruiz's professional email, personal email and mobile number
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Dr. Maria V. Ruiz is an emergency medicine physician in Madison, Wisconsin
Dr. Ruiz practices at UnityPoint Health - Meriter in Madison, Wisconsin, part of UnityPoint Health.
Dr. Ruiz's NPI, 1134230717, was assigned on August 31, 2006. Dr. Ruiz holds Wisconsin license 52592.
- NPI
- 1134230717NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517060684
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 417-6210
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maria V. Ruiz practices at UnityPoint Health - Meriter in Madison, Wisconsin
Dr. Ruiz's primary practice is UnityPoint Health - Meriter, at 202 S Park St, Madison, WI 53715 in Dane County. The practice phone is (608) 417-6210.
- UnityPoint Health - Meriter202 S Park St, Madison, WI 53715 · Dane CountyPhone(608) 417-6210
Source: Dmand AI Affiliation Data
Dr. Maria V. Ruiz is affiliated with 2 sites of care and 1 medical group
Dr. Ruiz's primary practice is UnityPoint Health - Meriter in Madison, Wisconsin, part of UnityPoint Health. The medical group on file is Emergency Medicine Associates of Madison. Dmand AI also links Dr. Ruiz to 1 more hospital outpatient department, 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 V. Ruiz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruiz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UnityPoint Health - Meriter | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across UnityPoint Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Maria V. Ruiz is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Dr. Ruiz's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Ruiz's licenses on file in 2 states: Wisconsin and New Mexico.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
- New Mexico license
Emergency medicine physicians near Dr. Ruiz
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 V. Ruiz billed Medicare for 429 services in 2024
CMS data shows 429 Medicare services from Dr. Ruiz across 5 procedure codes in 2024, for 353 Medicare patients. Medicare paid $38,588 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ruiz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3422024: 37510%
- Tests and treatments
- 2023: 602024: 5410%
Dr. Ruiz compared with the Wisconsin median for emergency medicine physicians, 2024
- Dr. Ruiz
- Wisconsin median
- Medicare services
- 429vs 24674% above
- Medicare patients
- 353vs 22160% above
- Part D claims
- 34vs 5740% below
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Dr. Ruiz'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
Dr. Maria V. Ruiz treated 353 Medicare patients in 2024, average age 74
CMS counts 353 Medicare patients who saw Dr. Ruiz in 2024. The largest group is 75 to 84, with 115 patients. 75% of them have high blood pressure, and 67% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ruiz's median patient age at 40, with 63% women.
Dr. Ruiz's Medicare patients by age, 2024
Dr. Ruiz's Medicare patients by sex, 2024
- Women21461%
- Men13939%
Chronic conditions among Dr. Ruiz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol67%
- Arthritis52%
- Mood disorders43%
- Anxiety42%
- Depression39%
- Chronic kidney disease37%
- Heart failure35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ruiz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Maria V. Ruiz wrote 110 Medicare Part D claims in 2024
In 2024, Dr. Ruiz wrote 110 Medicare Part D claims for 89 patients. 92% of them were for generic drugs. CMS names the drug for 34 of them, across 3 drugs with 11 or more claims each, at $242 in total drug cost. In 2023, CMS named 59 claims across 4 drugs.
Dr. Ruiz's Part D claims by kind of drug, 2024
- Generic101 claims92%
- Brand-name and other9 claims8%
Dr. Ruiz'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. Ruiz's Part D claims, 2024
- Opioids12%13 of 110 claims
- Antibiotics30%33 of 110 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: 592024: 3442%
Drugs named by CMS: 3 in 2024, 4 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 V. Ruiz takes part in Medicare
Dr. Ruiz 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 V. Ruiz received $108 in industry payments from 2023 to 2025
CMS Open Payments shows 4 general payments to Dr. Ruiz from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $58.
General payments to Dr. Ruiz by program year, 2023 to 2025
Companies that paid Dr. Ruiz the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Maria V. Ruiz'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) |
| Industry payments | Open Payments (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 Dr. Maria V. Ruiz
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 V. Ruiz's NPI number?
Dr. Maria V. Ruiz's NPI number is 1134230717. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Maria V. Ruiz?
Dr. Maria V. Ruiz is an emergency medicine physician in Madison, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Maria V. Ruiz practice?
Dr. Ruiz practices at 202 S Park St, Madison, WI 53715. Dr. Ruiz's primary practice is UnityPoint Health - Meriter in Madison, Wisconsin, part of UnityPoint Health. Dmand AI also links Dr. Ruiz to 1 hospital outpatient department.
What is Dr. Maria V. Ruiz's office phone number?
The practice phone on file for Dr. Ruiz is (608) 417-6210.
What is Dr. Maria V. Ruiz's medical license number?
Dr. Ruiz holds Wisconsin license 52592, one of the licenses on file in 2 states.
Which states has Dr. Maria V. Ruiz been licensed in?
Dmand AI has state licenses on file for Dr. Ruiz in Wisconsin and New Mexico.
Which hospitals is Dr. Maria V. Ruiz affiliated with?
Dr. Ruiz practices at UnityPoint Health - Meriter in Madison, Wisconsin.
What medical group is Dr. Maria V. Ruiz part of?
Dr. Ruiz is linked to Emergency Medicine Associates of Madison.
Does Dr. Maria V. Ruiz accept Medicare?
Yes. CMS data shows Dr. Ruiz billed Medicare for 429 services in 2024, and Dr. Ruiz accepts Medicare assignment.
How many Medicare patients does Dr. Maria V. Ruiz see?
CMS counts 353 Medicare patients who saw Dr. Ruiz in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Maria V. Ruiz bill to Medicare?
In 2024, Dr. Ruiz's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
What drugs does Dr. Maria V. Ruiz prescribe most?
In 2024 Medicare Part D data, Dr. Ruiz's most prescribed drugs by claims were Prednisone, Cefdinir and Oxycodone HCl.
Has Dr. Maria V. Ruiz received payments from drug or device companies?
CMS Open Payments shows $108 in general payments to Dr. Ruiz from 2 companies from 2023 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Maria V. Ruiz been practicing?
Dr. Ruiz graduated from medical school in 2003, 23 years ago.
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