MARK ANDREW NIELSEN (MD) – Urology Physician, NPI 1790873164
Urology Physician
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Profile Insights
NPPES metrics only — not quality of care.
897 UROLOGY in FL
Provider Addresses for MARK ANDREW NIELSEN (MD)
200 SE Hospital Ave
Stuart, FL 349942346
Phone: (772) 419-4834
Type: Location
4000 Miamisburg Centerville Rd Ste 450
Miamisburg, OH 453423908
Phone: (937) 560-2011
Type: Location
917 1ST ST N APT 1202
JACKSONVILLE BEACH, FL 322509109
Phone: (936) 544-4498
Type: Mailing
522, Russell Boulevard, Nacogdoches, Nacogdoches County, Texas, 75965, United States
NACOGDOCHES, TX 75965
Phone: (936) 564-3030
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2024-11-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 5 Medicare enrollment records; no due dates published yet.
Enrollment records
5
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20051213000654 | I | Urology | TX | TBD |
| I20190118002459 | I | Urology | NM | TBD |
| I20200929000044 | I | Urology | PA | TBD |
| I20231012000612 | I | Urology | FL | TBD |
| I20241108003188 | I | Urology | OH | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 45 | 24 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 22 | 16 | $0 |
| 52332 | Insertion of stent in ureter using an endoscope | 12 | 12 | $0 |
Insurance plans in this area (ZIP 34994)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Geriatric Medicine, Hematology/Oncology | IL | |
| Nurse Practitioner | OH | |
| Hematology/Oncology, Internal Medicine | OH | |
| Radiation Oncology | OH | |
| Nurse Practitioner | OH | |
| O B S T E T R I C S/ G Y N E C O L O G Y | OH | |
| Orthopedic Surgery | OH | |
| Pulmonary Disease, Critical Care (Intensivists), Sleep Medicine | OH | |
| Physician Assistant | OH | |
| Hospitalist, Emergency Medicine | OH |
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