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MS. ERIN BRIGID ALCAZAR FNP
NPI 1457698607
Nurse Practitioner - Family in East Saint Louis, IL

Active since January 08, 2013PECOS EnrolledAccepts Medicare Assignment
2420 STATE ST, EAST SAINT LOUIS, IL 62205(618) 318-8809(618) 615-4205 Get Directions Write a Review

NPPES record last updated: March 22, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 22, 2023, Dec 8, 2021, Jul 1, 2021 and 1 more (4 updates tracked since 2020).

About Ms. Erin Brigid Alcazar Fnp NPPES

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

MS. ERIN BRIGID ALCAZAR FNP (NPI 1457698607) is an individual family provider in East Saint Louis, Illinois, licensed in Illinois (209013690) and active in the NPI registry since January 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Waterloo, and is a graduate of Saint Louis University School Of Medicine (2012).

NPPES Registry Identity

NPI1457698607
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. ERIN BRIGID ALCAZARCredential: FNP
Location Address2420 STATE STEast Saint Louis, IL 62205-2321
Mailing Address509 Hamacher Street, Suite 103Waterloo, IL 62298 · (618) 939-3939 · Fax (618) 939-0234
Phone(618) 318-8809
Fax(618) 615-4205
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2012
Enumeration DateJanuary 8, 2013
Last NPPES UpdateMarch 22, 20234 updates tracked since enumeration
NPPES CertifiedMarch 22, 2023
✔ NPI 1457698607 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
Licenses✔ Licensed in IL · 209013690✔ Licensed in MO · 2013000997
2420 STATE ST, East Saint Louis, IL 62205
Open in Google Maps ↗

Other Names 1

Former Name (1)Erin Brigid Schmelig, Henry Fnp-c

Secondary Practice Location 1

Location 1509 Hamacher Street, Suite 103Waterloo, IL 62298 · Phone (618) 939-3939 · Fax (618) 939-0234

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

Ms. Erin Brigid Alcazar Fnp 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 ID8921243940
PECOS Enrollment IDI20160205002483
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 Erin Alcazar reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Osh-Il Physicians Group LLC
Same address
Primary Care
2420 STATE ST
East Saint Louis, IL 62205
  • Reassigned Medicare billing, Illinois enrollment
  • 35 clinicians in this Medicare group
NPI 1265977698 (618) 318-8809
Emergency Services Midwest Sc
7.4 mi
Emergency Medicine
4500 MEMORIAL DR
Belleville, IL 62226
  • Reassigned Medicare billing, Illinois enrollment
  • 111 clinicians in this Medicare group
NPI 1174024806 (618) 257-5840
Cepamerica Illinois LLP
7.5 mi
Emergency Medicine
4500 MEMORIAL DR
Belleville, IL 62226
  • Reassigned Medicare billing, Illinois enrollment
  • 982 clinicians in this Medicare group
NPI 1992082689 (618) 233-7750
Compass Health, Inc
19 mi
Federally Qualified Health Center (FQHC)
21 MUNICIPAL DR
Arnold, MO 63010
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: Community Treatment Inc
  • 26 clinicians in this Medicare group
NPI 1801215504 (636) 296-6206
Wellnow Urgent Care, PC
791 mi
Urgent Care
7375 OSWEGO RD, SUITE1
Liverpool, NY 13090
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Wellnow Urgent Care, P.C.
  • 195 clinicians in this Medicare group
NPI 1669825162 (716) 699-9032

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 3

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 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.
76 services71 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
34 services34 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
21 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62205 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
$88.44 typical visit price
range $56.28 – $173.35
Typical copayment $22.11 (range $14.07 – $43.33)
Most-billed visit code 99203
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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.

Other Providers at the Same Location NPPES 6

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

MRS. DONNA MARIE AVERY NP
Nurse Practitioner (Family)
2420 STATE ST
EAST SAINT LOUIS, IL 62205
St. Clair County (618) 318-8809
OSH-IL PHYSICIANS GROUP LLC
Clinic/Center (Primary Care)
2420 STATE ST
EAST SAINT LOUIS, IL 62205
St. Clair County (618) 318-8809
TERICA MEEKS NP
Nurse Practitioner (Gerontology)
2420 STATE ST
EAST SAINT LOUIS, IL 62205
St. Clair County (618) 318-8809
MRS. TIFFANY REED TATE-WOODARD AGNP
Nurse Practitioner (Gerontology)
2420 STATE ST
EAST SAINT LOUIS, IL 62205
St. Clair County (618) 318-8809
KIMBERLY J MITCHELL
Nurse Practitioner (Family)
2420 STATE ST
EAST SAINT LOUIS, IL 62205
St. Clair County (618) 318-8809
MS. ALICIA MICHELLE COLLIER
Counselor (Professional)
2420 STATE ST
EAST SAINT LOUIS, IL 62205
St. Clair County (618) 318-8809

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 Erin Alcazar's NPI number?

The NPI number for Erin Alcazar is 1457698607. It was assigned to this individual provider in the NPPES registry on January 8, 2013. The provider is also known as Erin Brigid Schmelig, Henry Fnp-C.

Where is Erin Alcazar located?

Erin Alcazar practices at 2420 State St, East Saint Louis, IL 62205. The listed phone number is (618) 318-8809.

What is Erin Alcazar's specialty?

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

Is Erin Alcazar enrolled in Medicare?

Yes. Erin Alcazar 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 Erin Alcazar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erin Alcazar reassigns Medicare benefits to 5 organizations: Osh-Il Physicians Group LLC (East Saint Louis, IL), Emergency Services Midwest Sc (Belleville, IL), Cepamerica Illinois LLP (Belleville, IL), Compass Health, Inc (Arnold, MO) and Wellnow Urgent Care, PC (Liverpool, NY). 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 Erin Alcazar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Erin Alcazar was last updated on March 22, 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.