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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MERCEDES D WIERMAN ARNP
NPI 1003188236
Nurse Practitioner - Adult Health in Altamonte Springs, FL

Active since February 03, 2012PECOS EnrolledAccepts Medicare Assignment
2160 W STATE RD 434, STE 1500, ALTAMONTE SPRINGS, FL 32714(407) 862-3400(407) 862-6277 Get Directions Write a Review

NPPES record last updated: October 1, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mercedes D Wierman Arnp NPPES

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

MERCEDES D WIERMAN ARNP (NPI 1003188236) is an individual adult health provider in Altamonte Springs, Florida, licensed in Florida (ARNP1266942) and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS, is affiliated with Adventhealth Orlando, and maintains a secondary practice location in Altamonte Springs.

NPPES Registry Identity

NPI1003188236
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMERCEDES D WIERMANCredential: ARNP
Location Address2160 W STATE RD 434, STE 1500Altamonte Springs, FL 32714
Mailing Address2160 W State Rd 434, Ste 1500Altamonte Springs, FL 32714 · (407) 862-3400 · Fax (407) 862-6277
Phone(407) 862-3400
Fax(407) 862-6277
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateFebruary 3, 2012
Last NPPES UpdateOctober 1, 2026
NPPES CertifiedSeptember 29, 2026
✔ NPI 1003188236 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in FL · ARNP1266942
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License ARNP1266942 (FL)
2160 W STATE RD 434, Altamonte Springs, FL 32714
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Secondary Practice Location 1

Location 1631 Palm Springs Dr, Suite 101Altamonte Springs, FL 32701-7854 · Phone (407) 331-1121

Other Identifiers 1

Medicaid004505300FL

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

Mercedes D Wierman Arnp 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 ID244481885
PECOS Enrollment IDI20121108000301
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

2

Medicare enrollment records show Mercedes Wierman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Adventhealth Primary Care Network Inc
3.6 mi
Family Medicine
900 HOPE WAY
Altamonte Springs, FL 32714
  • Reassigned Medicare billing, Florida enrollment
  • 395 clinicians in this Medicare group
NPI 1093493637 (407) 357-1000
Florida Hospital Medical Group Inc
10.0 mi
Family Medicine
1115 E RIDGEWOOD ST
Orlando, FL 32803
  • Reassigned Medicare billing, Florida enrollment
  • 3,005 clinicians in this Medicare group
NPI 1225034234 (407) 841-1100

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 8

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
239 services139 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
97 services97 patients
Annual alcohol misuse screening, 5 to 15 minutes G0442
An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.
97 services97 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
92 services92 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
68 services54 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
12 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Adventhealth Orlando

Acute Care Hospitals · Orlando, FL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100007
Location601 E Rollins StOrlando, FL 32803 · Orange County
Emergency services Birthing friendly

Adventhealth Fish Memorial

Acute Care Hospitals · Orange City, FL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number100072
Location1055 Saxon BlvdOrange City, FL 32763 · Volusia County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32714 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
$87.62 typical visit price
range $56.00 – $171.84
Typical copayment $21.90 (range $14.00 – $42.96)
Most-billed visit code 99203
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
Most-billed visit code 99214
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 Mercedes Wierman's NPI number?

The NPI number for Mercedes Wierman is 1003188236. It was assigned to this individual provider in the NPPES registry on February 3, 2012.

Where is Mercedes Wierman located?

Mercedes Wierman practices at 2160 W State Rd 434 Ste 1500, Altamonte Springs, FL 32714. The listed phone number is (407) 862-3400.

What is Mercedes Wierman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Mercedes Wierman enrolled in Medicare?

Yes. Mercedes Wierman 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 Mercedes Wierman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mercedes Wierman reassigns Medicare benefits to 2 organizations: Adventhealth Primary Care Network Inc (Altamonte Springs, FL) and Florida Hospital Medical Group Inc (Orlando, 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 Mercedes Wierman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mercedes Wierman affiliated with any hospitals?

According to CMS data, Mercedes Wierman is affiliated with Adventhealth Orlando and Adventhealth Fish Memorial.

When was this NPI record last updated?

The NPPES record for Mercedes Wierman was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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.