Mark Irwin
- Part D claims, 2024
- 77
- Hospital affiliations
- 4
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 9352 Park West Blvd, Knoxville, TN 37923
- Practice phone
- Call (865) 970-1001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Mark Irwin is an infectious disease specialist in Knoxville, Tennessee
Mark Irwin practices at Covenant Health Parkwest in Knoxville, Tennessee, part of Covenant Health.
Mark Irwin's NPI, 1104453588, was assigned on March 25, 2020. Mark Irwin holds Tennessee license 6170.
- NPI
- 1104453588NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133544828
- NPI enumeration date
- March 25, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 970-1001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Irwin practices at Covenant Health Parkwest in Knoxville, Tennessee
Mark Irwin's primary practice is Covenant Health Parkwest, at 9352 Park West Blvd, Knoxville, TN 37923 in Knox County. The practice phone is (865) 970-1001.
- Covenant Health Parkwest9352 Park West Blvd, Knoxville, TN 37923 · Knox CountyPhone(865) 970-1001
Source: Dmand AI Affiliation Data
Mark Irwin is affiliated with 5 sites of care and 1 medical group
Mark Irwin's primary practice is Covenant Health Parkwest in Knoxville, Tennessee, part of Covenant Health. Mark Irwin is also affiliated with Fort Sanders Regional Medical Center. The medical group on file is Covenant Medical Group. Dmand AI also links Mark Irwin to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark Irwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Irwin practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Covenant Health Parkwest | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Covenant Health and 6.2K+ hospitals, with verified contacts in the same login.
Mark Irwin is one of 154 infectious disease specialists in Tennessee
Infectious disease is Mark Irwin's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Mark Irwin is licensed in Tennessee.
Specialties and state licenses
- Infectious disease, TennesseePrimary
Infectious disease specialists near Mark Irwin
Counts of infectious disease specialists 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
Mark Irwin's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Mark Irwin's median patient age at 71, with 46% women.
Mark Irwin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women46%
- Men53%
Source: Dmand AI Patient Panel Data
Mark Irwin wrote 77 Medicare Part D claims in 2024
In 2024, Mark Irwin wrote 77 Medicare Part D claims for 13 patients. 43% of them were for generic drugs. CMS names the drug for 51 of them, across 4 drugs with 11 or more claims each, at $92,394 in total drug cost.
Mark Irwin's Part D claims by kind of drug, 2024
- Generic33 claims43%
- Brand-name44 claims57%
Mark Irwin'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.
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 Mark Irwin takes part in Medicare
Mark Irwin 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Mark Irwin'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 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) |
| 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 Mark Irwin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Irwin's NPI number?
Mark Irwin's NPI number is 1104453588. It was assigned on March 25, 2020, and it is active in the NPI Registry.
What does Mark Irwin specialize in?
Mark Irwin is an infectious disease specialist in Knoxville, Tennessee. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Mark Irwin practice?
Mark Irwin practices at 9352 Park West Blvd, Knoxville, TN 37923. Mark Irwin's primary practice is Covenant Health Parkwest in Knoxville, Tennessee, part of Covenant Health. Dmand AI also links Mark Irwin to 2 hospitals and 1 group practice or clinic.
What is Mark Irwin's office phone number?
The practice phone on file for Mark Irwin is (865) 970-1001.
What is Mark Irwin's medical license number?
Mark Irwin holds Tennessee license 6170.
Which hospitals is Mark Irwin affiliated with?
Mark Irwin practices at Covenant Health Parkwest in Knoxville, Tennessee. Mark Irwin is also affiliated with Fort Sanders Regional Medical Center. Dmand AI links Mark Irwin to 2 more hospitals.
What medical group is Mark Irwin part of?
Mark Irwin is linked to Covenant Medical Group.
Does Mark Irwin accept Medicare?
Yes. CMS lists Mark Irwin as accepting Medicare assignment.
What drugs does Mark Irwin prescribe most?
In 2024 Medicare Part D data, Mark Irwin's most prescribed drugs by claims were Odefsey, Atazanavir Sulfate and Descovy.
How long has Mark Irwin been practicing?
Mark Irwin graduated from medical school in 2020, 6 years ago.
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