Dr. William J. Kasper, MD
- Industry payments
- $63
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 740 Deerwood Ave, Neenah, WI 54956
- Practice phone
- Call (920) 751-9600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension Medical Group
Pediatric practice · Neenah, Wisconsin
Find Dr. Kasper'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.
Dr. William J. Kasper is a pediatrician in Neenah, Wisconsin
Dr. Kasper practices at Ascension Medical Group in Neenah, Wisconsin.
Dr. Kasper's NPI, 1093709891, was assigned on September 7, 2005. Dr. Kasper holds Wisconsin license 33517.
- NPI
- 1093709891NPI Registry (opens in a new tab)
- NPI enumeration date
- September 7, 2005
- NPI status
- Active
- Practice phone
- (920) 751-9600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William J. Kasper practices at Ascension Medical Group in Neenah, Wisconsin
Dr. Kasper's primary practice is Ascension Medical Group, at 740 Deerwood Ave, Neenah, WI 54956. The practice phone is (920) 751-9600.
- Ascension Medical Group740 Deerwood Ave, Neenah, WI 54956Phone(920) 751-9600
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William J. Kasper is affiliated with 1 site of care and 1 medical group
Dr. Kasper's primary practice is Ascension Medical Group in Neenah, Wisconsin. Dmand AI also links Dr. Kasper to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William J. Kasper's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kasper practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Medical Group | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William J. Kasper is one of 948 pediatricians in Wisconsin
Pediatrics is Dr. Kasper's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Kasper is licensed in Wisconsin.
Specialties and state licenses
- Pediatrics, WisconsinPrimary
Pediatricians near Dr. Kasper
Counts of pediatricians 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. William J. Kasper's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Kasper's median patient age at 52, with 100% women.
Dr. Kasper'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
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. William J. Kasper received $63 in industry payments from 2017 to 2018
CMS Open Payments shows 2 general payments to Dr. Kasper from 2 drug and device companies from 2017 to 2018. Food and beverage make up the largest share, 100% of the total. Grifols Shared Services North America, Inc. paid the most, $48.
General payments to Dr. Kasper by program year, 2017 to 2018
Companies that paid Dr. Kasper the most, 2017 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William J. Kasper'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. William J. Kasper
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. William J. Kasper's NPI number?
Dr. William J. Kasper's NPI number is 1093709891. It was assigned on September 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William J. Kasper?
Dr. William J. Kasper is a pediatrician in Neenah, Wisconsin. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. William J. Kasper practice?
Dr. Kasper practices at 740 Deerwood Ave, Neenah, WI 54956. Dr. Kasper's primary practice is Ascension Medical Group in Neenah, Wisconsin. Dmand AI also links Dr. Kasper to 1 medical group.
What is Dr. William J. Kasper's office phone number?
The practice phone on file for Dr. Kasper is (920) 751-9600.
What is Dr. William J. Kasper's medical license number?
Dr. Kasper holds Wisconsin license 33517.
Has Dr. William J. Kasper received payments from drug or device companies?
CMS Open Payments shows $63 in general payments to Dr. Kasper from 2 companies from 2017 to 2018. The largest total came from Grifols Shared Services North America, Inc.
How long has Dr. William J. Kasper been practicing?
Dr. Kasper's NPI was assigned in 2005.
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