MARK A MUIZNIEKS MD
NPI 1174570014
Emergency Medicine in Clarksville, TN
About Mark A Muiznieks Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK A MUIZNIEKS MD (NPI 1174570014) is an individual emergency medicine provider in Clarksville, Tennessee, licensed in Tennessee (40646) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Jennie Stuart Medical Center, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark A Muiznieks Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Mark Muiznieks reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hopkinsville, KY 42240
- Reassigned Medicare billing, Kentucky enrollment
- 36 clinicians in this Medicare group
Nashville, TN 37203
- Reassigned Medicare billing, Tennessee enrollment
- 414 clinicians in this Medicare group
Paris, TN 38242
- Reassigned Medicare billing, Tennessee enrollment
- 65 clinicians in this Medicare group
Savannah, TN 38372
- Reassigned Medicare billing, Tennessee enrollment
- 37 clinicians in this Medicare group
Maryville, TN 37804
- Reassigned Medicare billing, Tennessee enrollment
- 390 clinicians in this Medicare group
Newport, TN 37821
- Reassigned Medicare billing, Tennessee enrollment
- 664 clinicians in this Medicare group
Maysville, KY 41056
- Reassigned Medicare billing, Tennessee enrollment
- 1,071 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Jennie Stuart Medical Center
Acute Care Hospitals · Hopkinsville, KYHardin Medical Center
Acute Care Hospitals · Savannah, TNHenry County Medical Center
Acute Care Hospitals · Paris, TNTristar Hendersonville Medical Center
Acute Care Hospitals · Hendersonville, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37040 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Muiznieks's NPI number?
The NPI number for Mark Muiznieks is 1174570014. It was assigned to this individual provider in the NPPES registry on May 27, 2006.
Where is Mark Muiznieks located?
Mark Muiznieks practices at 651 Dunlop Lane Clarksville, Clarksville, TN 37040. The listed phone number is (931) 502-1370.
What is Mark Muiznieks's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Muiznieks enrolled in Medicare?
Yes. Mark Muiznieks is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mark Muiznieks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Muiznieks reassigns Medicare benefits to 7 organizations: Fep Of Kentucky LLC (Hopkinsville, KY), Emergency Medicine Services Of Tn, PC (Nashville, TN), Eagle Creek Emergency Group, PC (Paris, TN), Hardin Emergency Group LLC (Savannah, TN), App Of Tennessee Ed, PLLC (Maryville, TN) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Muiznieks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Muiznieks accept?
Health plans from Oscar Health and Oscar Insurance Company list Mark Muiznieks as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mark Muiznieks affiliated with any hospitals?
According to CMS data, Mark Muiznieks is affiliated with Jennie Stuart Medical Center, Hardin Medical Center, Henry County Medical Center and Tristar Hendersonville Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Muiznieks was last updated on August 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mark A Muiznieks, MD · NPI 1174570014
Emergency Medicine physician in Clarksville, Tennessee. Individual provider, active in the CMS NPPES registry since May 27, 2006.
## Identity
- **NPI:** 1174570014 (Entity type: Individual)
- **Enumerated:** May 27, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 40646 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 651 DUNLOP LANE CLARKSVILLE, Clarksville, TN 37040-5015
- **Phone:** (931) 502-1370
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Fep Of Kentucky LLC (NPI 1770266553, Hopkinsville, KY); Emergency Medicine Services Of Tn, PC (NPI 1720785884, Nashville, TN); Eagle Creek Emergency Group, PC (NPI 1134627557, Paris, TN); Hardin Emergency Group LLC (NPI 1972850477, Savannah, TN); App Of Tennessee Ed, PLLC (NPI 1003230236, Maryville, TN); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 2003
## Record status
- **NPPES last updated:** August 2, 2011
- **Other identifiers:** Medicaid 3831915 (TN); Other 000000528735 (KY); Medicare PIN 3831915 (TN)
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Source: [NPI Profile](https://npiprofile.com/npi/1174570014) · Data from the CMS NPPES public registry.