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MS. ERIN KATHLEEN WIESNER PA
NPI 1639493372
Physician Assistant in Saint Louis, MO

Active since March 24, 2010PECOS EnrolledAccepts Medicare Assignment
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED, SAINT LOUIS, MO 63110(314) 362-9123(314) 747-3338 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 25, 2024, Apr 18, 2024, Apr 10, 2024 and 2 more (5 updates tracked since 2021).

About Ms. Erin Kathleen Wiesner Pa NPPES

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

MS. ERIN KATHLEEN WIESNER PA (NPI 1639493372) is an individual physician assistant in Saint Louis, Missouri, licensed in Missouri (2010039476) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1639493372
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMS. ERIN KATHLEEN WIESNERCredential: PA
Location Address400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MEDSaint Louis, MO 63110-1014
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-9123 · Fax (314) 747-3338
Phone(314) 362-9123
Fax(314) 747-3338
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateMarch 24, 2010
Last NPPES UpdateApril 17, 20255 updates tracked since enumeration
NPPES CertifiedApril 18, 2024
✔ NPI 1639493372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MO · 2010039476
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
400 S KINGSHIGHWAY BLVD, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid220041145MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Erin Kathleen Wiesner Pa 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 ID7315139284
PECOS Enrollment IDI20120125000457
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.

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.

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.
101 services62 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.
49 services48 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
27 services27 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
16 services16 patients

Hospital Affiliations CMS Care Compare 4

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Mercy Hospital Washington

Acute Care Hospitals · Washington, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260052
Location901 East 5th StreetWashington, MO 63090 · Franklin County
Emergency services

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Mercy Hospital Lincoln

Critical Access Hospitals · Troy, MO
OwnershipGovernment - Local
CMS Certification Number261319
Location1000 East Cherry StreetTroy, MO 63379 · Lincoln County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
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.

Other Providers at the Same Location NPPES 20

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

DR. RICHARD THOMAS GRIFFEY MD
Emergency Medicine
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
MS. ELIZABETH M CARNAGHI AGNP
Nurse Practitioner
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MEDICINE
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
DR. RICHARD S TAO MD
Emergency Medicine
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
DR. MARK D LEVINE MD
Emergency Medicine
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
DR. DAVID K TAN MD
Emergency Medicine
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
DR. JARED LEVY ROSS DO
Emergency Medicine
400 S KINGSHIGHWAY BLVD
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
MR. AJAY MINTON PA
Physician Assistant
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123
DR. BRIAN RANDOLPH FROELKE MD
Emergency Medicine
400 S KINGSHIGHWAY BLVD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9123

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 Wiesner's NPI number?

The NPI number for Erin Wiesner is 1639493372. It was assigned to this individual provider in the NPPES registry on March 24, 2010.

Where is Erin Wiesner located?

Erin Wiesner practices at 400 S Kingshighway Blvd Dept Emergency Med, Saint Louis, MO 63110. The listed phone number is (314) 362-9123.

What is Erin Wiesner's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Erin Wiesner enrolled in Medicare?

Yes. Erin Wiesner 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.

What insurance does Erin Wiesner accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 5 other insurers list Erin Wiesner 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 Erin Wiesner affiliated with any hospitals?

According to CMS data, Erin Wiesner is affiliated with Mercy Hospital St Louis, Mercy Hospital Washington, Mercy Hospital South and Mercy Hospital Lincoln.

When was this NPI record last updated?

The NPPES record for Erin Wiesner was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.