Dr. Christopher David Walden, MD, PhD
- Part D claims, 2024
- 278
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 3111 Gundersen Dr, Onalaska, WI 54650
- Practice phone
- Call (608) 775-8025
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gundersen Lutheran Onalaska Clinic
Onalaska, Wisconsin
Find Dr. Walden'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. Christopher David Walden is an internist in Onalaska, Wisconsin
Dr. Walden practices at Gundersen Lutheran Onalaska Clinic in Onalaska, Wisconsin.
Dr. Walden's NPI, 1548849912, was assigned on April 5, 2021. Dr. Walden graduated from University of North Dakota School of Medicine in 2017. Dr. Walden holds Wisconsin license 77567-20.
- NPI
- 1548849912NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052714821
- NPI enumeration date
- April 5, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 775-8025
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher David Walden practices at Gundersen Lutheran Onalaska Clinic in Onalaska, Wisconsin
Dr. Walden's primary practice is Gundersen Lutheran Onalaska Clinic, at 3111 Gundersen Dr, Onalaska, WI 54650 in La Crosse County. The practice phone is (608) 775-8025.
- Gundersen Lutheran Onalaska Clinic3111 Gundersen Dr, Onalaska, WI 54650 · La Crosse CountyPhone(608) 775-8025
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher David Walden is affiliated with 2 sites of care and 1 medical group
Dr. Walden's primary practice is Gundersen Lutheran Onalaska Clinic in Onalaska, Wisconsin. Dr. Walden is also affiliated with Gundersen Lutheran Medical Center. The medical group on file is Gundersen Lutheran Medical Center.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Christopher David Walden's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walden practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gundersen Lutheran Onalaska Clinic | 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. Christopher David Walden is one of 1,675 internists in Wisconsin
Internal medicine is Dr. Walden's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Walden is licensed in Wisconsin.
Specialties and state licenses
- Internal medicine, WisconsinPrimary
Internists near Dr. Walden
Counts of internists 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. Christopher David Walden's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Walden's median patient age at 65, with 54% women.
Dr. Walden's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Christopher David Walden wrote 278 Medicare Part D claims in 2024
In 2024, Dr. Walden wrote 278 Medicare Part D claims for 66 patients. 91% of them were for generic drugs. CMS names the drug for 117 of them, across 7 drugs with 11 or more claims each, at $14,720 in total drug cost.
Dr. Walden's Part D claims by kind of drug, 2024
- Generic252 claims91%
- Brand-name and other26 claims9%
Dr. Walden's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Walden's Part D claims, 2024
- Antibiotics6%17 of 278 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Christopher David Walden takes part in Medicare
Dr. Walden 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)
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Dr. Christopher David Walden graduated from University of North Dakota School of Medicine
Dr. Walden graduated from University of North Dakota School of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher David Walden'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Christopher David Walden
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. Christopher David Walden's NPI number?
Dr. Christopher David Walden's NPI number is 1548849912. It was assigned on April 5, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher David Walden?
Dr. Christopher David Walden is an internist in Onalaska, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Christopher David Walden practice?
Dr. Walden practices at 3111 Gundersen Dr, Onalaska, WI 54650. Dr. Walden's primary practice is Gundersen Lutheran Onalaska Clinic in Onalaska, Wisconsin.
What is Dr. Christopher David Walden's office phone number?
The practice phone on file for Dr. Walden is (608) 775-8025.
What is Dr. Christopher David Walden's medical license number?
Dr. Walden holds Wisconsin license 77567-20.
Which hospitals is Dr. Christopher David Walden affiliated with?
Dr. Walden is affiliated with Gundersen Lutheran Medical Center.
What medical group is Dr. Christopher David Walden part of?
Dr. Walden is linked to Gundersen Lutheran Medical Center.
Does Dr. Christopher David Walden accept Medicare?
Yes. CMS lists Dr. Walden as accepting Medicare assignment.
Where did Dr. Christopher David Walden go to medical school?
Dr. Walden graduated from University of North Dakota School of Medicine in 2017.
What drugs does Dr. Christopher David Walden prescribe most?
In 2024 Medicare Part D data, Dr. Walden's most prescribed drugs by claims were Atorvastatin Calcium, Metoprolol Succinate and Lisinopril.
How long has Dr. Christopher David Walden been practicing?
Dr. Walden graduated from medical school in 2017, 9 years ago.
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