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MARK ANDREW NIELSEN MD
NPI 1790873164
Urology in Jacksonville Beach, FL

Active since October 11, 2006PECOS EnrolledAccepts Medicare Assignment
917 1ST ST N APT 1202, JACKSONVILLE BEACH, FL 32250(936) 544-4498 Get Directions Write a Review

NPPES record last updated: December 18, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 18, 2024, Oct 25, 2023 (2 updates tracked since 2023).

About Mark Andrew Nielsen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK ANDREW NIELSEN MD (NPI 1790873164) is an individual urology provider in Jacksonville Beach, Florida, licensed in Florida (ME161324) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Presbyterian Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1790873164
Entity TypeIndividualMale
Primary Taxonomy208800000X
Provider Legal NameMARK ANDREW NIELSENCredential: MD
Location Address917 1ST ST N APT 1202Jacksonville Beach, FL 32250-9109
Mailing Address917 1st St N Apt 1202Jacksonville Beach, FL 32250-9109 · (936) 544-4498
Phone(936) 544-4498
Sole ProprietorYes
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 1980
Enumeration DateOctober 11, 2006
Last NPPES UpdateDecember 18, 20242 updates tracked since enumeration
NPPES CertifiedDecember 18, 2024
✔ NPI 1790873164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
Licenses✔ Licensed in FL · ME161324✔ Licensed in OH · 35.152092
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
917 1ST ST N APT 1202, Jacksonville Beach, FL 32250
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Secondary Practice Locations 2

Location 1200 SE Hospital AveStuart, FL 34994-2346 · Phone (772) 419-4834
Location 24000 Miamisburg Centerville Rd Ste 450Miamisburg, OH 45342-3908 · Phone (937) 560-2011

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware and more.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 Andrew Nielsen 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.

PECOS PAC ID7517988900
PECOS Enrollment IDI20190118002459, I20241108003188
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Mark Nielsen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kettering Independent Medical Group Inc
663 mi
Orthopaedic Surgery
1 PRESTIGE PL, SUITE 910
Miamisburg, OH 45342
  • Reassigned Medicare billing, Ohio enrollment
  • 984 clinicians in this Medicare group
NPI 1629387865 (937) 762-1629
Wellspan Medical Group
677 mi
Interventional Pain Medicine
17 WESTERN MARYLAND PKWY STE 100
Hagerstown, MD 21740
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 3,080 clinicians in this Medicare group
NPI 1588249668 (301) 797-9240
Dlp Conemaugh Physician Practices LLC
682 mi
Family Medicine
339 W UNION ST
Somerset, PA 15501
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 771 clinicians in this Medicare group
NPI 1396151361 (814) 444-8300
Presbyterian Healthcare Services
1,306 mi
Rural
2100 MARTIN LUTHER KING JR BLVD
Clovis, NM 88101
  • Reassigned Medicare billing, New Mexico enrollment
  • 2,331 clinicians in this Medicare group
NPI 1629053509 (505) 469-7577

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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
120 services85 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
56 services54 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
49 services44 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
16 services16 patients
Insertion of stent in ureter using an endoscope 52332
This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.
15 services15 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Presbyterian Hospital

Acute Care Hospitals · Albuquerque, NM
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number320021
Location1100 Central Avenue SEAlbuquerque, NM 87106 · Bernalillo County
Emergency services Birthing friendly

Kettering Health Dayton

Acute Care Hospitals · Dayton, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number360133
Location405 Grand AvenueDayton, OH 45405 · Montgomery County
Birthing friendly

United Regional Health Care System

Acute Care Hospitals · Wichita Falls, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450010
Location1600 11th StreetWichita Falls, TX 76301 · Wichita County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32250 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$70.04 typical visit price
range $17.57 – $139.16
Typical copayment $17.51 (range $4.39 – $34.79)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 1790873164. It was assigned to this individual provider in the NPPES registry on October 11, 2006.

Where is Mark Nielsen located?

Mark Nielsen practices at 917 1st St N Apt 1202, Jacksonville Beach, FL 32250. The listed phone number is (936) 544-4498.

What is Mark Nielsen's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

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 4 organizations: Kettering Independent Medical Group Inc (Miamisburg, OH), Wellspan Medical Group (Hagerstown, MD), Dlp Conemaugh Physician Practices LLC (Somerset, PA) and Presbyterian Healthcare Services (Clovis, NM). 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 Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Avera Health Plans and CareSource and 4 other insurers 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.

Is Mark Nielsen affiliated with any hospitals?

According to CMS data, Mark Nielsen is affiliated with Presbyterian Hospital, Kettering Health Dayton and United Regional Health Care System.

When was this NPI record last updated?

The NPPES record for Mark Nielsen was last updated on December 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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.