Mary J. Derse-Hayes, PA
- Medicare patients, 2024
- 56
- Part D claims, 2024
- 111
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Practice address
- 1155 N Mayfair Rd, Wauwatosa, WI 53226
- Practice phone
- Call (414) 955-5990
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Froedtert Greenfield Highlands Health Center
Urgent Care - Additional Location · Wauwatosa, Wisconsin
Find Mary Derse-Hayes' 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.
Mary J. Derse-Hayes is a physician assistant in Milwaukee, Wisconsin
Mary Derse-Hayes practices at Froedtert Greenfield Highlands Health Center in Wauwatosa, Wisconsin.
Mary Derse-Hayes' NPI, 1679675557, was assigned on September 2, 2006. Mary Derse-Hayes holds Wisconsin license 2046.
- NPI
- 1679675557NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476550625
- NPI enumeration date
- September 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (414) 955-5990
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary J. Derse-Hayes practices at Froedtert Greenfield Highlands Health Center in Wauwatosa, Wisconsin
Mary Derse-Hayes' primary practice is Froedtert Greenfield Highlands Health Center, at 1155 N Mayfair Rd, Wauwatosa, WI 53226. The practice phone is (414) 955-5990.
- Froedtert Greenfield Highlands Health Center1155 N Mayfair Rd, Wauwatosa, WI 53226Phone(414) 955-5990
Source: Dmand AI Affiliation Data
Mary J. Derse-Hayes is affiliated with 4 sites of care and 2 medical groups
Mary Derse-Hayes' primary practice is Froedtert Greenfield Highlands Health Center in Wauwatosa, Wisconsin. Mary Derse-Hayes is also affiliated with Froedtert Hospital. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI also links Mary Derse-Hayes to 2 more group practices and clinics and 1 medical group, each named with a free account. Mary Derse-Hayes' employer is on file too: an urgent care center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mary J. Derse-Hayes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Derse-Hayes practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Froedtert Greenfield Highlands Health Center | Available with a free account |
| +3 more sites 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Mary J. Derse-Hayes is one of 3,127 physician assistants in Wisconsin
Physician assistant is Mary Derse-Hayes' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Mary Derse-Hayes is licensed in Wisconsin.
Specialties and state licenses
- Physician assistant, WisconsinPrimary
Physician assistants near Mary Derse-Hayes
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
Mary J. Derse-Hayes treated 56 Medicare patients in 2024, average age 74
CMS counts 56 Medicare patients who saw Mary Derse-Hayes in 2024. The largest group is 65 to 74, with 25 patients. 70% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mary Derse-Hayes' median patient age at 44, with 65% women.
Mary Derse-Hayes' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mary Derse-Hayes' Medicare patients by sex, 2024
- Women4275%
- Men1425%
Chronic conditions among Mary Derse-Hayes' Medicare patients, 2024
- High blood pressure70%
- High cholesterol68%
- Arthritis52%
- Osteoporosis29%
- Chronic kidney disease23%
- Diabetes21%
- Cancer20%
- Ischemic heart disease20%
Share of Medicare patients with each condition. A patient can have several.
Mary Derse-Hayes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary J. Derse-Hayes wrote 111 Medicare Part D claims in 2024
In 2024, Mary Derse-Hayes wrote 111 Medicare Part D claims for 80 patients. 88% of them were for generic drugs.
Mary Derse-Hayes' Part D claims by kind of drug, 2024
- Generic98 claims88%
- Brand-name13 claims12%
Drug classes CMS tracks in Mary Derse-Hayes' Part D claims, 2024
- Antibiotics34%38 of 111 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
How Mary J. Derse-Hayes takes part in Medicare
Mary Derse-Hayes 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Mary J. Derse-Hayes'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Mary J. Derse-Hayes
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary J. Derse-Hayes' NPI number?
Mary J. Derse-Hayes' NPI number is 1679675557. It was assigned on September 2, 2006, and it is active in the NPI Registry.
What does Mary J. Derse-Hayes specialize in?
Mary J. Derse-Hayes is a physician assistant in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mary J. Derse-Hayes practice?
Mary Derse-Hayes practices at 1155 N Mayfair Rd, Wauwatosa, WI 53226. Mary Derse-Hayes' primary practice is Froedtert Greenfield Highlands Health Center in Wauwatosa, Wisconsin. Dmand AI also links Mary Derse-Hayes to 2 group practices and clinics and 1 medical group.
What is Mary J. Derse-Hayes' office phone number?
The practice phone on file for Mary Derse-Hayes is (414) 955-5990.
What is Mary J. Derse-Hayes' medical license number?
Mary Derse-Hayes holds Wisconsin license 2046.
Which hospitals is Mary J. Derse-Hayes affiliated with?
Mary Derse-Hayes is affiliated with Froedtert Hospital.
What medical group is Mary J. Derse-Hayes part of?
Mary Derse-Hayes is linked to Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI links Mary Derse-Hayes to 1 more medical group.
Does Mary J. Derse-Hayes accept Medicare?
Yes. CMS lists Mary Derse-Hayes as accepting Medicare assignment.
How many Medicare patients does Mary J. Derse-Hayes see?
CMS counts 56 Medicare patients who saw Mary Derse-Hayes in 2024, with an average age of 74.
How long has Mary J. Derse-Hayes been practicing?
Mary Derse-Hayes graduated from medical school in 2006, 20 years ago.
Selling to physician assistant practices?
See physician assistants in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card