Dr. William C. Leach, MD
- Part D claims, 2018
- 16
- Hospital affiliations
- 1
- Industry payments
- $2,910
- Medical group
- 1
- State license
- 1
- Practice address
- 9000 W Wisconsin Ave, Milwaukee, WI 53226
- Practice phone
- Call (414) 266-3954
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leach'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 C. Leach is a pediatrician in Milwaukee, Wisconsin
Dr. Leach practices at Children's Wisconsin in Milwaukee, Wisconsin, part of Children's Hospital and Health System.
Dr. Leach's NPI, 1124013891, was assigned on September 19, 2005. Dr. Leach holds Wisconsin license 25333.
- NPI
- 1124013891NPI Registry (opens in a new tab)
- NPI enumeration date
- September 19, 2005
- NPI status
- Active
- Practice phone
- (414) 266-3954
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William C. Leach practices at Children's Wisconsin in Milwaukee, Wisconsin
Dr. Leach's primary practice is Children's Wisconsin, at 9000 W Wisconsin Ave, Milwaukee, WI 53226 in Milwaukee County. The practice phone is (414) 266-3954.
- Children's Wisconsin9000 W Wisconsin Ave, Milwaukee, WI 53226 · Milwaukee CountyPhone(414) 266-3954
Source: Dmand AI Affiliation Data
Dr. William C. Leach is affiliated with 1 site of care and 1 medical group
Dr. Leach's primary practice is Children's Wisconsin in Milwaukee, Wisconsin, part of Children's Hospital and Health System. The medical group on file is Children's Physician Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William C. Leach's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leach practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's Wisconsin | 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 Children's Hospital and Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William C. Leach is one of 948 pediatricians in Wisconsin
Pediatrics is Dr. Leach's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Leach is licensed in Wisconsin.
Specialties and state licenses
- Pediatrics, WisconsinPrimary
Pediatricians near Dr. Leach
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 C. Leach's patients have a median age of 13
Across all payers, Dmand AI patient panel data puts Dr. Leach's median patient age at 13, with 44% women.
Dr. Leach's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 13
Patient panel by sex, all payers
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. William C. Leach wrote 16 Medicare Part D claims in 2018
In 2018, Dr. Leach wrote 16 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $8,078 in total drug cost.
Dr. Leach's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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.
Dr. William C. Leach received $2,910 in industry payments from 2016 to 2019
CMS Open Payments shows 19 general payments to Dr. Leach from 6 drug and device companies from 2016 to 2019. Speaker and faculty fees make up the largest share, 86% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $2,749.
General payments to Dr. Leach by program year, 2016 to 2019
General payments to Dr. Leach by kind, 2016 to 2019
- Speaker and faculty fees$2,50086%
- Food and beverage$38713%
- Travel and lodging$231%
Companies that paid Dr. Leach the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William C. Leach'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. William C. Leach
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 C. Leach's NPI number?
Dr. William C. Leach's NPI number is 1124013891. It was assigned on September 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William C. Leach?
Dr. William C. Leach is a pediatrician in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. William C. Leach practice?
Dr. Leach practices at 9000 W Wisconsin Ave, Milwaukee, WI 53226. Dr. Leach's primary practice is Children's Wisconsin in Milwaukee, Wisconsin, part of Children's Hospital and Health System.
What is Dr. William C. Leach's office phone number?
The practice phone on file for Dr. Leach is (414) 266-3954.
What is Dr. William C. Leach's medical license number?
Dr. Leach holds Wisconsin license 25333.
Which hospitals is Dr. William C. Leach affiliated with?
Dr. Leach practices at Children's Wisconsin in Milwaukee, Wisconsin.
What medical group is Dr. William C. Leach part of?
Dr. Leach is linked to Children's Physician Group.
What drugs does Dr. William C. Leach prescribe most?
In 2018 Medicare Part D data, Dr. Leach's most prescribed drugs by claims were Oxcarbazepine.
Has Dr. William C. Leach received payments from drug or device companies?
CMS Open Payments shows $2,910 in general payments to Dr. Leach from 6 companies from 2016 to 2019. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. William C. Leach been practicing?
Dr. Leach's NPI was assigned in 2005.
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