Mark Diaz III, PA-C
- Medicare patients, 2024
- 352
- Part D claims, 2024
- 215
- Hospital affiliations
- 1
- Industry payments
- $121
- Medical groups
- 2
- 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 Mark Diaz'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.
Mark Diaz III is a physician assistant in Madison, Wisconsin
Mark Diaz practices at UnityPoint Health - Meriter in Madison, Wisconsin, part of UnityPoint Health.
Mark Diaz's NPI, 1700370020, was assigned on June 20, 2018. Mark Diaz graduated from University of Wisconsin School of Medicine in 2018. Mark Diaz holds Wisconsin license 4404-23.
- NPI
- 1700370020NPI Registry (opens in a new tab)
- NPI enumeration date
- June 20, 2018
- NPI status
- Active
- Practice phone
- (608) 417-6210
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Mark Diaz III practices at UnityPoint Health - Meriter in Madison, Wisconsin
Mark Diaz'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
Mark Diaz III is affiliated with 2 sites of care and 2 medical groups
Mark Diaz'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 Mark Diaz to 1 more hospital outpatient department and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark Diaz III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Diaz 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 site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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.
Mark Diaz III is one of 3,127 physician assistants in Wisconsin
Physician assistant is Mark Diaz's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Mark Diaz is licensed in Wisconsin.
Specialties and state licenses
- Physician assistant, WisconsinPrimary
Physician assistants near Mark Diaz
Counts of physician assistants 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
Mark Diaz III treated 352 Medicare patients in 2024, average age 72
CMS counts 352 Medicare patients who saw Mark Diaz in 2024. The largest group is 75 to 84, with 114 patients. 75% of them have high blood pressure, and 66% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.89, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mark Diaz's median patient age at 52, with 56% women.
Mark Diaz's Medicare patients by age, 2024
Mark Diaz's Medicare patients by sex, 2024
- Women20358%
- Men14942%
Chronic conditions among Mark Diaz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol66%
- Arthritis43%
- Diabetes35%
- Anxiety34%
- Mood disorders34%
- Chronic kidney disease33%
- Heart failure33%
Share of Medicare patients with each condition. A patient can have several.
Mark Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark Diaz III wrote 215 Medicare Part D claims in 2024
In 2024, Mark Diaz wrote 215 Medicare Part D claims for 157 patients. 91% of them were for generic drugs.
Mark Diaz's Part D claims by kind of drug, 2024
- Generic195 claims91%
- Brand-name and other20 claims9%
Drug classes CMS tracks in Mark Diaz's Part D claims, 2024
- Opioids12%25 of 215 claims
- Antibiotics42%90 of 215 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Mark Diaz III received $121 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mark Diaz from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $121.
Companies that paid Mark Diaz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark Diaz III graduated from University of Wisconsin School of Medicine
Mark Diaz graduated from University of Wisconsin School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark Diaz III'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 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 (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 Mark Diaz III
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Diaz III's NPI number?
Mark Diaz III's NPI number is 1700370020. It was assigned on June 20, 2018, and it is active in the NPI Registry.
What does Mark Diaz III specialize in?
Mark Diaz III is a physician assistant in Madison, Wisconsin. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mark Diaz III practice?
Mark Diaz practices at 202 S Park St, Madison, WI 53715. Mark Diaz's primary practice is UnityPoint Health - Meriter in Madison, Wisconsin, part of UnityPoint Health. Dmand AI also links Mark Diaz to 1 hospital outpatient department and 1 medical group.
What is Mark Diaz III's office phone number?
The practice phone on file for Mark Diaz is (608) 417-6210.
What is Mark Diaz III's medical license number?
Mark Diaz holds Wisconsin license 4404-23.
Which hospitals is Mark Diaz III affiliated with?
Mark Diaz practices at UnityPoint Health - Meriter in Madison, Wisconsin.
What medical group is Mark Diaz III part of?
Mark Diaz is linked to Emergency Medicine Associates of Madison. Dmand AI links Mark Diaz to 1 more medical group.
How many Medicare patients does Mark Diaz III see?
CMS counts 352 Medicare patients who saw Mark Diaz in 2024, with an average age of 72.
Where did Mark Diaz III go to medical school?
Mark Diaz graduated from University of Wisconsin School of Medicine in 2018.
Has Mark Diaz III received payments from drug or device companies?
CMS Open Payments shows $121 in general payments to Mark Diaz from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Mark Diaz III been practicing?
Mark Diaz graduated from medical school in 2018, 8 years ago.
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