MARK LLOYD NIELSEN II APRN
NPI 1093273328
Nurse Practitioner - Family in Pinellas Park, FL
About Mark Lloyd Nielsen Ii Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK LLOYD NIELSEN II APRN (NPI 1093273328) is an individual family provider in Pinellas Park, Florida, licensed in Florida (APRN11001600) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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 Lloyd Nielsen Ii Aprn 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
2Medicare enrollment records show Mark Nielsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pinellas Park, FL 33781
- Reassigned Medicare billing, Florida enrollment
- 131 clinicians in this Medicare group
Pinellas Park, FL 33781
- Reassigned Medicare billing, Florida enrollment
- 93 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33781 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PINELLAS PARK, FL 33781
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 Nielsen's NPI number?
The NPI number for Mark Nielsen is 1093273328. It was assigned to this individual provider in the NPPES registry on March 5, 2019.
Where is Mark Nielsen located?
Mark Nielsen practices at 7550 43rd St N, Pinellas Park, FL 33781. The listed phone number is (727) 824-8181.
What is Mark Nielsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mark Nielsen enrolled in Medicare?
Yes. Mark Nielsen 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 Nielsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Nielsen reassigns Medicare benefits to 2 organizations: Community Health Center Of Pinellas Inc (Pinellas Park, FL) and Unique Healthcare Systems LLC (Pinellas Park, FL). 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 Nielsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Nielsen accept?
Health plans from Oscar Health Maintenance Organization of Florida and Wellpoint list Mark Nielsen 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.
When was this NPI record last updated?
The NPPES record for Mark Nielsen was last updated on February 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 Lloyd Nielsen II, APRN · NPI 1093273328
Family physician in Pinellas Park, Florida. Individual provider, active in the CMS NPPES registry since March 5, 2019.
## Identity
- **NPI:** 1093273328 (Entity type: Individual)
- **Enumerated:** March 5, 2019
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** APRN11001600 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 7550 43RD ST N, Pinellas Park, FL 33781-3601
- **Phone:** (727) 824-8181
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Community Health Center Of Pinellas Inc (NPI 1811975535, Pinellas Park, FL); Unique Healthcare Systems LLC (NPI 1831567627, Pinellas Park, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** February 9, 2023
- **Other identifiers:** Medicaid 115716900 (FL)
---
Source: [NPI Profile](https://npiprofile.com/npi/1093273328) · Data from the CMS NPPES public registry.