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Dr. Darren J. Knox, MD
NPI1558892869PAC ID8921379884
- Medicare services, 2024
- 429
- Medicare patients, 2024
- 204
- Part D claims, 2024
- 448
- Publications
- 1
- Hospital affiliations
- 5
- Practice address
- 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601
- Practice phone
- Call (608) 775-3176
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gundersen Lutheran Medical Center - Dialysis
Dialysis Center - Hospital-Based · La Crosse, Wisconsin
Find Dr. Knox'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. Darren J. Knox is an internist in La Crosse, Wisconsin
Dr. Knox practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin.
Dr. Knox's NPI, 1558892869, was assigned on March 27, 2017. Dr. Knox holds Wisconsin license 73501.
NPI and contact details
- NPI
- 1558892869NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921379884
- NPI enumeration date
- March 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (608) 775-3176
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darren J. Knox practices at Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin
Dr. Knox's primary practice is Gundersen Lutheran Medical Center - Dialysis, at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 in La Crosse County. The practice phone is (608) 775-3176.
- Gundersen Lutheran Medical Center - Dialysis1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601 · La Crosse CountyPhone(608) 775-3176
Source: Dmand AI Affiliation Data
Dr. Darren J. Knox is affiliated with 9 sites of care and 6 medical groups
Dr. Knox's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dr. Knox is also affiliated with Gundersen Lutheran Medical Center. The medical group on file is Gundersen Lutheran Medical Center. Dmand AI also links Dr. Knox to 4 more hospitals, 5 medical groups and 3 group practices and clinics, each named with a free account. Dr. Knox's employer is on file too: a dialysis center.
Gundersen Lutheran Medical Center - DialysisPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Darren J. Knox's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Knox practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gundersen Lutheran Medical Center - Dialysis | Available with a free account |
| +8 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Darren J. Knox is one of 1,675 internists in Wisconsin
Internal medicine is Dr. Knox's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Knox is licensed in Wisconsin.
Specialties and state licenses
- Internal medicine, WisconsinPrimary
Internists near Dr. Knox
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. Darren J. Knox billed Medicare for 429 services in 2024
CMS data shows 429 Medicare services from Dr. Knox across 6 procedure codes in 2024, for 204 Medicare patients. Medicare paid $28,963 for them.
Medicare services, 2024429
Medicare patients204
Paid by Medicare$28,963
Procedure codes6
Dr. Knox's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5782024: 42926%
Where Dr. Knox's Medicare services took place, 2024
- In an office235%
- In a facility40695%
Dr. Knox compared with the Wisconsin median for internists, 2024
- Dr. Knox
- Wisconsin median
- Medicare services
- 429vs 4576% below
- Medicare patients
- 204vs 199Close to median
- Part D claims
- 201vs 43354% below
Medians across 1,658 internists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Knox's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Knox?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Knox and other internists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darren J. Knox treated 204 Medicare patients in 2024, average age 74
CMS counts 204 Medicare patients who saw Dr. Knox in 2024. The largest group is 65 to 74, with 77 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.47, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Knox's median patient age at 72, with 57% women.
Medicare patients, 2024204
Average age74
Average risk score2.47
Also on Medicaid39%
Dr. Knox's Medicare patients by age, 2024
Dr. Knox's Medicare patients by sex, 2024
- Women9848%
- Men10652%
Chronic conditions among Dr. Knox's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease55%
- Heart failure46%
- Mood disorders46%
- Diabetes43%
- Ischemic heart disease43%
- Depression42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Knox's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Darren J. Knox wrote 448 Medicare Part D claims in 2024
In 2024, Dr. Knox wrote 448 Medicare Part D claims for 101 patients. 86% of them were for generic drugs. CMS names the drug for 201 of them, across 10 drugs with 11 or more claims each, at $16,076 in total drug cost. In 2023, CMS named 222 claims across 11 drugs.
Part D claims, 2024448
Drugs named by CMS10
Total drug cost$16,076
Part D patients101
Dr. Knox's Part D claims by kind of drug, 2024
- Generic384 claims86%
- Brand-name and other64 claims14%
Dr. Knox'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. Knox's Part D claims, 2024
- Antibiotics10%43 of 448 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2222024: 2019%
Drugs named by CMS: 10 in 2024, 11 in 2023.
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
Dr. Darren J. Knox offers telehealth to Medicare patients
Dr. Knox accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Knox as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find internists like Dr. Knox by procedure volume and prescribing
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Dr. Darren J. Knox has 1 publication on record
Dmand AI links 1 paper to Dr. Knox. Dr. Knox's most frequent co-author is Michael Hill, MD.
Papers1
Dr. Knox's most frequent co-authors
Recent publications by Dr. Knox
See who Dr. Knox researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Knox works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Darren J. Knox'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Darren J. Knox
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. Darren J. Knox's NPI number?
Dr. Darren J. Knox's NPI number is 1558892869. It was assigned on March 27, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Darren J. Knox?
Dr. Darren J. Knox is an internist in La Crosse, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Darren J. Knox practice?
Dr. Knox practices at 1910 South Ave, Heritage Building 2 West, La Crosse, WI 54601. Dr. Knox's primary practice is Gundersen Lutheran Medical Center - Dialysis in La Crosse, Wisconsin. Dmand AI also links Dr. Knox to 4 hospitals, 5 medical groups and 3 group practices and clinics.
What is Dr. Darren J. Knox's office phone number?
The practice phone on file for Dr. Knox is (608) 775-3176.
What is Dr. Darren J. Knox's medical license number?
Dr. Knox holds Wisconsin license 73501.
Which hospitals is Dr. Darren J. Knox affiliated with?
Dr. Knox is affiliated with Gundersen Lutheran Medical Center. Dmand AI links Dr. Knox to 4 more hospitals.
What medical group is Dr. Darren J. Knox part of?
Dr. Knox is linked to Gundersen Lutheran Medical Center. Dmand AI links Dr. Knox to 5 more medical groups.
Does Dr. Darren J. Knox accept Medicare?
Yes. CMS data shows Dr. Knox billed Medicare for 429 services in 2024, and Dr. Knox accepts Medicare assignment.
Does Dr. Darren J. Knox offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Knox as offering telehealth services.
How many Medicare patients does Dr. Darren J. Knox see?
CMS counts 204 Medicare patients who saw Dr. Knox in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Darren J. Knox bill to Medicare?
In 2024, Dr. Knox's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and hospital inpatient care (99231).
What drugs does Dr. Darren J. Knox prescribe most?
In 2024 Medicare Part D data, Dr. Knox's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Metoprolol Succinate.
How long has Dr. Darren J. Knox been practicing?
Dr. Knox graduated from medical school in 2017, 9 years ago.
Does Dr. Darren J. Knox do research?
Dmand AI links 1 publication to Dr. Knox.
Who does Dr. Darren J. Knox publish with?
Dr. Knox's most frequent co-authors are Michael Hill, MD (1 shared paper).
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