Dr. Mark D. Westfall, DO
- Medicare services, 2021
- 463
- Part D claims, 2021
- 52
- Hospital affiliations
- 2
- Industry payments
- $31
- State license
- 1
- Practice address
- 1818 N Meade St, Appleton, WI 54911
- Practice phone
- Call (920) 731-4101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Westfall'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. Mark D. Westfall is an emergency medicine physician in Appleton, Wisconsin
Dr. Westfall practices at ThedaCare Regional Medical Center-Appleton in Appleton, Wisconsin, part of Froedtert ThedaCare Health.
Dr. Westfall's NPI, 1174566939, was assigned on June 13, 2006. Dr. Westfall holds Wisconsin license 38501-21.
- NPI
- 1174566939NPI Registry (opens in a new tab)
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Practice phone
- (920) 731-4101
- 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. Mark D. Westfall practices at ThedaCare Regional Medical Center-Appleton in Appleton, Wisconsin
Dr. Westfall's primary practice is ThedaCare Regional Medical Center-Appleton, at 1818 N Meade St, Appleton, WI 54911 in Outagamie County. The practice phone is (920) 731-4101.
- ThedaCare Regional Medical Center-Appleton1818 N Meade St, Appleton, WI 54911 · Outagamie CountyPhone(920) 731-4101
Source: Dmand AI Affiliation Data
Dr. Mark D. Westfall is affiliated with 2 sites of care
Dr. Westfall's primary practice is ThedaCare Regional Medical Center-Appleton in Appleton, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Westfall to 1 hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark D. Westfall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Westfall practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ThedaCare Regional Medical Center-Appleton | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark D. Westfall is one of 1,211 emergency medicine physicians in Wisconsin
Emergency medicine is Dr. Westfall's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Westfall is licensed in Wisconsin.
Specialties and state licenses
- Emergency medicine, WisconsinPrimary
Emergency medicine physicians near Dr. Westfall
Counts of emergency medicine physicians 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. Mark D. Westfall billed Medicare for 463 services in 2021
CMS data shows 463 Medicare services from Dr. Westfall across 5 procedure codes in 2021. Medicare paid $42,809 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Westfall's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 3792021: 29821%
- Tests and treatments
- 2020: 2172021: 16524%
Dr. Westfall compared with the Wisconsin median for emergency medicine physicians, 2021
- Dr. Westfall
- Wisconsin median
- Medicare services
- 463vs 24688% above
- Part D claims
- 52vs 579% below
Medians across 1,249 emergency medicine physicians in Wisconsin with Dmand AI profiles that report each measure.
Dr. Westfall's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Westfall and other emergency medicine physicians in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark D. Westfall's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Westfall's median patient age at 66, with 67% women.
Dr. Westfall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Mark D. Westfall wrote 52 Medicare Part D claims in 2021
In 2021, Dr. Westfall wrote 52 Medicare Part D claims. They cover 3 drugs, with $414 in total drug cost. In 2020, CMS named 95 claims across 5 drugs.
Dr. Westfall's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 952021: 5245%
Drugs named by CMS: 3 in 2021, 5 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mark D. Westfall received $31 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Westfall from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. ZOLL Medical Corporation paid the most, $31.
Companies that paid Dr. Westfall the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark D. Westfall'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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. Mark D. Westfall
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. Mark D. Westfall's NPI number?
Dr. Mark D. Westfall's NPI number is 1174566939. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark D. Westfall?
Dr. Mark D. Westfall is an emergency medicine physician in Appleton, Wisconsin. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mark D. Westfall practice?
Dr. Westfall practices at 1818 N Meade St, Appleton, WI 54911. Dr. Westfall's primary practice is ThedaCare Regional Medical Center-Appleton in Appleton, Wisconsin, part of Froedtert ThedaCare Health. Dmand AI also links Dr. Westfall to 1 hospital.
What is Dr. Mark D. Westfall's office phone number?
The practice phone on file for Dr. Westfall is (920) 731-4101.
What is Dr. Mark D. Westfall's medical license number?
Dr. Westfall holds Wisconsin license 38501-21.
Which hospitals is Dr. Mark D. Westfall affiliated with?
Dr. Westfall practices at ThedaCare Regional Medical Center-Appleton in Appleton, Wisconsin. Dmand AI links Dr. Westfall to 1 more hospital.
Does Dr. Mark D. Westfall accept Medicare?
Yes. CMS data shows Dr. Westfall billed Medicare for 463 services in 2021.
What services does Dr. Mark D. Westfall bill to Medicare?
In 2021, Dr. Westfall's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
What drugs does Dr. Mark D. Westfall prescribe most?
In 2021 Medicare Part D data, Dr. Westfall's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Sulfamethoxazole-Trimethoprim and Nitrofurantoin Mono-Macro.
Has Dr. Mark D. Westfall received payments from drug or device companies?
CMS Open Payments shows $31 in general payments to Dr. Westfall from 1 company from 2016 to 2016. The largest total came from ZOLL Medical Corporation.
How long has Dr. Mark D. Westfall been practicing?
Dr. Westfall's NPI was assigned in 2006.
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