Dr. Peter David Holzwarth, MD
- Part D claims, 2017
- 84
- Hospital affiliations
- 1
- Industry payments
- $1,282
- Medical groups
- 3
- State license
- 1
- Practice address
- 130 2nd St, Neenah, WI 54956
- Practice phone
- Call (920) 729-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Holzwarth'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. Peter David Holzwarth is a pediatrician in Neenah, Wisconsin
Dr. Holzwarth practices at ThedaCare Regional Medical Center-Neenah in Neenah, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Holzwarth's NPI, 1629001912, was assigned on July 9, 2006. Dr. Holzwarth holds Wisconsin license 35954.
- NPI
- 1629001912NPI Registry (opens in a new tab)
- NPI enumeration date
- July 9, 2006
- NPI status
- Active
- Practice phone
- (920) 729-3100
- 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. Peter David Holzwarth practices at ThedaCare Regional Medical Center-Neenah in Neenah, Wisconsin
Dr. Holzwarth's primary practice is ThedaCare Regional Medical Center-Neenah, at 130 2nd St, Neenah, WI 54956 in Winnebago County. The practice phone is (920) 729-3100.
- ThedaCare Regional Medical Center-Neenah130 2nd St, Neenah, WI 54956 · Winnebago CountyPhone(920) 729-3100
Source: Dmand AI Affiliation Data
Dr. Peter David Holzwarth is affiliated with 1 site of care and 3 medical groups
Dr. Holzwarth's primary practice is ThedaCare Regional Medical Center-Neenah in Neenah, Wisconsin, part of Froedtert ThedaCare Health. The medical group on file is ThedaCare Behavioral Health Walk-in Care-Neenah. Dmand AI also links Dr. Holzwarth to 2 more 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. Peter David Holzwarth's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holzwarth practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ThedaCare Regional Medical Center-Neenah | Available with a free account |
| +2 medical groups | 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 Froedtert ThedaCare Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Peter David Holzwarth is one of 948 pediatricians in Wisconsin
Pediatrics is Dr. Holzwarth's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Holzwarth is licensed in Wisconsin.
Specialties and state licenses
- Pediatrics, WisconsinPrimary
Pediatricians near Dr. Holzwarth
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. Peter David Holzwarth's patients have a median age of 9
Across all payers, Dmand AI patient panel data puts Dr. Holzwarth's median patient age at 9, with 51% women.
Dr. Holzwarth's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 9
Patient panel by sex, all payers
- Women51%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Peter David Holzwarth wrote 84 Medicare Part D claims in 2017
In 2017, Dr. Holzwarth wrote 84 Medicare Part D claims. They cover 6 drugs, with $1,932 in total drug cost. In 2016, CMS named 83 claims across 6 drugs.
Dr. Holzwarth's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 832017: 841%
Drugs named by CMS: 6 in 2017, 6 in 2016.
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. Peter David Holzwarth received $1,282 in industry payments from 2016 to 2025
CMS Open Payments shows 55 general payments to Dr. Holzwarth from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $488.
General payments to Dr. Holzwarth by program year, 2016 to 2025
Companies that paid Dr. Holzwarth the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Peter David Holzwarth'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. Peter David Holzwarth
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. Peter David Holzwarth's NPI number?
Dr. Peter David Holzwarth's NPI number is 1629001912. It was assigned on July 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter David Holzwarth?
Dr. Peter David Holzwarth is a pediatrician in Neenah, Wisconsin. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Peter David Holzwarth practice?
Dr. Holzwarth practices at 130 2nd St, Neenah, WI 54956. Dr. Holzwarth's primary practice is ThedaCare Regional Medical Center-Neenah in Neenah, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Holzwarth to 2 medical groups.
What is Dr. Peter David Holzwarth's office phone number?
The practice phone on file for Dr. Holzwarth is (920) 729-3100.
What is Dr. Peter David Holzwarth's medical license number?
Dr. Holzwarth holds Wisconsin license 35954.
Which hospitals is Dr. Peter David Holzwarth affiliated with?
Dr. Holzwarth practices at ThedaCare Regional Medical Center-Neenah in Neenah, Wisconsin.
What medical group is Dr. Peter David Holzwarth part of?
Dr. Holzwarth is linked to ThedaCare Behavioral Health Walk-in Care-Neenah. Dmand AI links Dr. Holzwarth to 2 more medical groups.
What drugs does Dr. Peter David Holzwarth prescribe most?
In 2017 Medicare Part D data, Dr. Holzwarth's most prescribed drugs by claims were Levocarnitine, Sulfamethoxazole-Trimethoprim and Ranitidine HCl.
Has Dr. Peter David Holzwarth received payments from drug or device companies?
CMS Open Payments shows $1,282 in general payments to Dr. Holzwarth from 9 companies from 2016 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has Dr. Peter David Holzwarth been practicing?
Dr. Holzwarth's NPI was assigned in 2006.
Selling to pediatrics practices?
See pediatricians 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