1. Home
  2. Directory
  3. Illinois
  4. Effingham
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARGO S MCMAHON FNP-BC
NPI 1336381201
Nurse Practitioner - Family in Effingham, IL

Active since March 24, 2009PECOS EnrolledAccepts Medicare Assignment
54.31/100
CMS Quality Rating
1303 W EVERGREEN AVE STE 202, EFFINGHAM, IL 62401(217) 238-4634 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 15, 2026, Mar 16, 2026, Jun 18, 2020 and 1 more (4 updates tracked since 2015).

About Margo S Mcmahon Fnp-bc NPPES

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

MARGO S MCMAHON FNP-BC (NPI 1336381201) is an individual family provider in Effingham, Illinois, licensed in Illinois (209007512) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS, is affiliated with St Anthonys Memorial Hospital, and is a graduate of Indiana University School Of Medicine (2008).

NPPES Registry Identity

NPI1336381201
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARGO S MCMAHONCredential: FNP-BC
Location Address1303 W EVERGREEN AVE STE 202Effingham, IL 62401-1638
Mailing Address1303 W Evergreen Ave Ste 202Effingham, IL 62401-1638 · (217) 238-4634 · Fax (217) 342-3402
Phone(217) 238-4634
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2008
Enumeration DateMarch 24, 2009
Last NPPES UpdateSeptember 15, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2026
✔ NPI 1336381201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in IL · 209007512
1303 W EVERGREEN AVE STE 202, Effingham, IL 62401
Open in Google Maps ↗

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

Margo S Mcmahon Fnp-bc 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 ID3476601576
PECOS Enrollment IDI20090429000358
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

5

Medicare enrollment records show Margo Mcmahon reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Vituity - Illinois Auc LLP
0.6 mi
Emergency Medicine
801 W TEMPLE AVE
Effingham, IL 62401
  • Reassigned Medicare billing, Illinois enrollment
  • 119 clinicians in this Medicare group
NPI 1306334198 (217) 347-1690
St Anthonys Memorial Hospital Of The Hospital Sisters Of The Third
1.2 mi
General Acute Care Hospital
503 N MAPLE ST
Effingham, IL 62401
  • Reassigned Medicare billing, Illinois enrollment
  • 104 clinicians in this Medicare group
NPI 1306800602 (217) 347-1333
Cepamerica Illinois LLP
1.2 mi
Emergency Medicine
503 N MAPLE ST
Effingham, IL 62401
  • Reassigned Medicare billing, Illinois enrollment
  • 982 clinicians in this Medicare group
NPI 1629577812 (217) 347-1211
Sarah Bush Lincoln Health Center
29 mi
Family Medicine
1000 HEALTH CENTER DR
Mattoon, IL 61938
  • Reassigned Medicare billing, Illinois enrollment
  • 652 clinicians in this Medicare group
NPI 1568581379 (217) 258-2525
Springfield Clinic, LLP
74 mi
Multi-Specialty
1025 S 6TH ST
Springfield, IL 62703
  • Reassigned Medicare billing, Illinois enrollment
  • 735 clinicians in this Medicare group
NPI 1780638478 (217) 528-7541

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.

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.
66 services47 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
57 services47 patients
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 87635
This is a lab test that detects the presence of COVID-19 in your body. It uses a technique to amplify the virus's genetic material, either DNA or RNA, making it easier to identify. A positive result indicates an active infection.
17 services17 patients
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.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

St Anthonys Memorial Hospital

Acute Care Hospitals · Effingham, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140032
Location503 N Maple StreetEffingham, IL 62401 · Effingham County
Emergency services Birthing friendly

Sarah Bush Lincoln Health Center

Acute Care Hospitals · Mattoon, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140189
Location1000 Health Center Drive P O Box 372Mattoon, IL 61938 · Coles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62401 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

54.31/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality45.42
Improvement Activities40
Cost47.77

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409
DME-Orthotic Devices · category DF010N
1 supplier11 claims110 services$6.00 avg. paid by Medicare
Ostomy pouch, urinary; for use on barrier with non-locking flange, with faucet-type tap with valve (2 piece), each A4432
DME-Orthotic Devices · category DF010N
1 supplier11 claims110 services$3.46 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers19 claims19 services$7.53 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KATELYN JULE KLOSTERMAN
Family Medicine
1303 W EVERGREEN AVE STE 202
EFFINGHAM, IL 62401
Effingham County (217) 238-4634
DR. LOUIS E SCHWING IV IV MD
Internal Medicine
1303 W EVERGREEN AVE STE 202
EFFINGHAM, IL 62401
Effingham County (217) 238-4634

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 Margo Mcmahon's NPI number?

The NPI number for Margo Mcmahon is 1336381201. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Where is Margo Mcmahon located?

Margo Mcmahon practices at 1303 W Evergreen Ave Ste 202, Effingham, IL 62401. The listed phone number is (217) 238-4634.

What is Margo Mcmahon's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Margo Mcmahon enrolled in Medicare?

Yes. Margo Mcmahon 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 Margo Mcmahon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margo Mcmahon reassigns Medicare benefits to 5 organizations: Vituity - Illinois Auc LLP (Effingham, IL), St Anthonys Memorial Hospital Of The Hospital Sisters Of The Third (Effingham, IL), Cepamerica Illinois LLP (Effingham, IL), Sarah Bush Lincoln Health Center (Mattoon, IL) and Springfield Clinic, LLP (Springfield, IL). 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 Margo Mcmahon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Margo Mcmahon affiliated with any hospitals?

According to CMS data, Margo Mcmahon is affiliated with St Anthonys Memorial Hospital and Sarah Bush Lincoln Health Center.

When was this NPI record last updated?

The NPPES record for Margo Mcmahon was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.