Dr. Mario Javier Velez, MD
- Medicare services, 2024
- 367
- Medicare patients, 2024
- 298
- Part D claims, 2024
- 795
- Hospital affiliations
- 3
- Industry payments
- $1,659
- Practice address
- 725 American Ave, Waukesha, WI 53188
- Practice phone
- Call (262) 928-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Velez's professional email, personal email and mobile number
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Dr. Mario Javier Velez is a gastroenterologist in Waukesha, Wisconsin
Dr. Velez practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care.
Dr. Velez's NPI, 1477879765, was assigned on April 13, 2010. Dr. Velez graduated from Icahn School of Medicine at Mount Sinai in 2010. Dr. Velez holds Wisconsin license 70082-20.
- NPI
- 1477879765NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123321353
- NPI enumeration date
- April 13, 2010
- NPI status
- Active
- Practice phone
- (262) 928-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mario Javier Velez practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin
Dr. Velez's primary practice is ProHealth Waukesha Memorial Hospital, at 725 American Ave, Waukesha, WI 53188 in Waukesha County. The practice phone is (262) 928-1000.
- ProHealth Waukesha Memorial Hospital725 American Ave, Waukesha, WI 53188 · Waukesha CountyPhone(262) 928-1000
Source: Dmand AI Affiliation Data
Dr. Mario Javier Velez is affiliated with 6 sites of care and 4 medical groups
Dr. Velez's primary practice is ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care. Dr. Velez is also affiliated with Ascension SE Wisconsin Hospital - St. Joseph. The medical group on file is Ascension Medical Group. Dmand AI also links Dr. Velez to 1 more hospital, 3 group practices and clinics and 3 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. Mario Javier Velez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Velez practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ProHealth Waukesha Memorial Hospital | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mario Javier Velez is one of 277 gastroenterologists in Wisconsin
Gastroenterology is Dr. Velez's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Velez's licenses on file in 2 states: Wisconsin and Vermont.
Specialties and state licenses
- Gastroenterology, WisconsinPrimary
- Vermont license
Gastroenterologists near Dr. Velez
Counts of gastroenterologists 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. Mario Javier Velez billed Medicare for 367 services in 2024
CMS data shows 367 Medicare services from Dr. Velez across 14 procedure codes in 2024, for 298 Medicare patients. Medicare paid $38,228 for them.
Dr. Velez's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2722024: 21820%
- Office and hospital visits
- 2023: 602024: 9863%
- Other services
- 2023: 402024: 5128%
Where Dr. Velez's Medicare services took place, 2024
- In an office226%
- In a facility34594%
Dr. Velez compared with the Wisconsin median for gastroenterologists, 2024
- Dr. Velez
- Wisconsin median
- Medicare services
- 367vs 32912% above
- Medicare patients
- 298vs 25816% above
- Part D claims
- 667vs 42955% above
Medians across 278 gastroenterologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Velez'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.
Need commercial claims for Dr. Velez?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Velez and other gastroenterologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mario Javier Velez treated 298 Medicare patients in 2024, average age 73
CMS counts 298 Medicare patients who saw Dr. Velez in 2024. The largest group is 65 to 74, with 143 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Velez's median patient age at 62, with 50% women.
Dr. Velez's Medicare patients by age, 2024
Dr. Velez's Medicare patients by sex, 2024
- Women13445%
- Men16455%
Chronic conditions among Dr. Velez's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis40%
- Ischemic heart disease37%
- Chronic kidney disease33%
- Diabetes28%
- Mood disorders24%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Velez's 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
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mario Javier Velez wrote 795 Medicare Part D claims in 2024
In 2024, Dr. Velez wrote 795 Medicare Part D claims for 416 patients. 73% of them were for generic drugs. CMS names the drug for 667 of them, across 15 drugs with 11 or more claims each, at $113,189 in total drug cost. In 2023, CMS named 731 claims across 16 drugs.
Dr. Velez's Part D claims by kind of drug, 2024
- Generic584 claims73%
- Brand-name211 claims27%
Dr. Velez'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. Velez's Part D claims, 2024
- Antibiotics3%20 of 795 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: 7312024: 6679%
Drugs named by CMS: 15 in 2024, 16 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
Dr. Mario Javier Velez ranks in the 84th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
CMS counts 144 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Velez, more than 84% of the clinicians it reports for that procedure.
Where Dr. Velez ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 84th percentile144 procedures
- Colonoscopy
- 76th percentile85 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Source: Doctors and Clinicians Utilization Data (CMS)
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Dr. Mario Javier Velez received $1,659 in industry payments from 2016 to 2025
CMS Open Payments shows 27 general payments to Dr. Velez from 7 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 55% of the total. Olympus Corporation of the Americas paid the most, $807.
General payments to Dr. Velez by program year, 2016 to 2025
General payments to Dr. Velez by kind, 2016 to 2025
- Travel and lodging$91755%
- Food and beverage$73844%
- Education$40%
Companies that paid Dr. Velez 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. Mario Javier Velez graduated from Icahn School of Medicine at Mount Sinai
Dr. Velez graduated from Icahn School of Medicine at Mount Sinai in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mario Javier Velez'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 Utilization Data (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 Dr. Mario Javier Velez
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. Mario Javier Velez's NPI number?
Dr. Mario Javier Velez's NPI number is 1477879765. It was assigned on April 13, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Mario Javier Velez?
Dr. Mario Javier Velez is a gastroenterologist in Waukesha, Wisconsin. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mario Javier Velez practice?
Dr. Velez practices at 725 American Ave, Waukesha, WI 53188. Dr. Velez's primary practice is ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin, part of ProHealth Care. Dmand AI also links Dr. Velez to 1 hospital, 3 group practices and clinics and 3 medical groups.
What is Dr. Mario Javier Velez's office phone number?
The practice phone on file for Dr. Velez is (262) 928-1000.
What is Dr. Mario Javier Velez's medical license number?
Dr. Velez holds Wisconsin license 70082-20, one of the licenses on file in 2 states.
Which states has Dr. Mario Javier Velez been licensed in?
Dmand AI has state licenses on file for Dr. Velez in Wisconsin and Vermont.
Which hospitals is Dr. Mario Javier Velez affiliated with?
Dr. Velez practices at ProHealth Waukesha Memorial Hospital in Waukesha, Wisconsin. Dr. Velez is also affiliated with Ascension SE Wisconsin Hospital - St. Joseph. Dmand AI links Dr. Velez to 1 more hospital.
What medical group is Dr. Mario Javier Velez part of?
Dr. Velez is linked to Ascension Medical Group. Dmand AI links Dr. Velez to 3 more medical groups.
Does Dr. Mario Javier Velez accept Medicare?
Yes. CMS data shows Dr. Velez billed Medicare for 367 services in 2024.
How many Medicare patients does Dr. Mario Javier Velez see?
CMS counts 298 Medicare patients who saw Dr. Velez in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Mario Javier Velez bill to Medicare?
In 2024, Dr. Velez's most billed Medicare services were surgery: digestive system (45385), surgery: digestive system (43239) and hospital inpatient care (99222).
Where did Dr. Mario Javier Velez go to medical school?
Dr. Velez graduated from Icahn School of Medicine at Mount Sinai in 2010.
What drugs does Dr. Mario Javier Velez prescribe most?
In 2024 Medicare Part D data, Dr. Velez's most prescribed drugs by claims were Gavilyte-G, Sod Sulf-Potass Sulf-Mag Sulf and Omeprazole.
Has Dr. Mario Javier Velez received payments from drug or device companies?
CMS Open Payments shows $1,659 in general payments to Dr. Velez from 7 companies from 2016 to 2025. The largest total came from Olympus Corporation of the Americas.
How long has Dr. Mario Javier Velez been practicing?
Dr. Velez graduated from medical school in 2010, 16 years ago.
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