Christopher Walden, MD, PHD
NPI 1548849912 · Internal Medicine Physician · La Crosse, WI
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Walden, MD, PHD is a Internal Medicine Physician provider in La Crosse, WI (NPI 1548849912).
Provider details
- NPI number
- 1548849912
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 77567-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 32 | 13 |
| Metoprolol Succinate | 17 | — |
| Lisinopril | 16 | — |
| Furosemide | 15 | — |
| Apixabanbrand: Eliquis | 13 | — |
| Metoprolol Tartrate | 13 | — |
| Clopidogrel Bisulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-05
- Last updated
- 2026-04-23
- Certified
- 2026-04-23
Frequently asked questions
- What is Christopher Walden's NPI number?
- Christopher Walden's National Provider Identifier (NPI) is 1548849912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Walden's specialty?
- Christopher Walden is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Walden located?
- Christopher Walden's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Christopher Walden's phone number?
- The practice phone number listed in the NPPES registry for Christopher Walden is (608) 782-7300.
- Does Christopher Walden accept Medicare?
- Christopher Walden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Walden's NPI active?
- Yes — Christopher Walden's NPI (1548849912) is active in the NPPES registry as of the last update on 2026-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.