Darren Knox, M.D.
NPI 1558892869 · Internal Medicine Physician · La Crosse, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darren Knox, M.D. is a Internal Medicine Physician provider in La Crosse, WI (NPI 1558892869).
Provider details
- NPI number
- 1558892869
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
429 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 206 | $73 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 57 | $120 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 48 | $45 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 41 | $106 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 33 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 43 | 16 |
| Apixabanbrand: Eliquis | 23 | — |
| Metoprolol Succinate | 22 | 15 |
| Cefdinir | 20 | 18 |
| Lisinopril | 18 | — |
| Amlodipine Besylate | 18 | — |
| Prednisone | 18 |
Practice location
Mailing address
Additional practice locations (1)
- 111 Colchester AveBurlington, VT 05401-1473Phone: (802) 847-2345
Registry dates
- Enumerated
- 2017-03-27
- Last updated
- 2020-09-30
- Certified
- 2020-09-30
Frequently asked questions
- What is Darren Knox's NPI number?
- Darren Knox's National Provider Identifier (NPI) is 1558892869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Knox's specialty?
- Darren Knox is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Darren Knox located?
- Darren Knox's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Darren Knox's phone number?
- The practice phone number listed in the NPPES registry for Darren Knox is (608) 782-7300.
- Does Darren Knox accept Medicare?
- Darren Knox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darren Knox's NPI active?
- Yes — Darren Knox's NPI (1558892869) is active in the NPPES registry as of the last update on 2020-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.