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MEGAN KNOERNSCHILD
NPI 1255908018
Physician Assistant in Saint Louis, MO

Active since June 09, 2021PECOS EnrolledAccepts Medicare Assignment
621 S NEW BALLAS RD STE 507A, SAINT LOUIS, MO 63141(314) 251-6800(314) 251-4466 Get Directions Write a Review

NPPES record last updated: April 24, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Apr 24, 2026, Jun 9, 2021 (2 updates tracked since 2021).

About Megan Knoernschild NPPES

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

MEGAN KNOERNSCHILD (NPI 1255908018) is an individual physician assistant in Saint Louis, Missouri, licensed in Missouri (2021006398) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1255908018
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMEGAN KNOERNSCHILD
Location Address621 S NEW BALLAS RD STE 507ASaint Louis, MO 63141-8260
Mailing AddressPo Box 776084Chicago, IL 60677-6084 · (314) 251-6800 · Fax (314) 251-4466
Phone(314) 251-6800
Fax(314) 251-4466
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateJune 9, 2021
Last NPPES UpdateApril 24, 20262 updates tracked since enumeration
NPPES CertifiedApril 24, 2026
✔ NPI 1255908018 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in MO · 2021006398✔ Licensed in CO · PA.0009622
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.
621 S NEW BALLAS RD STE 507A, Saint Louis, MO 63141
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Secondary Practice Locations 2

Location 19695 S Yosemite St Ste 224Lone Tree, CO 80124-2890 · Phone (303) 265-3970
Location 23009 N Ballas Rd Ste 100BSaint Louis, MO 63131-2322 · Phone (314) 432-1111

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Medica.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

Megan Knoernschild 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 ID143612895
PECOS Enrollment IDI20220110001589, I20260506001482
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 10

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.
208 services184 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.
122 services109 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.
44 services44 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
27 services27 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
24 services24 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.
24 services24 patients

Hospital Affiliations CMS Care Compare 2

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 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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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.

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 Megan Knoernschild's NPI number?

The NPI number for Megan Knoernschild is 1255908018. It was assigned to this individual provider in the NPPES registry on June 9, 2021.

Where is Megan Knoernschild located?

Megan Knoernschild practices at 621 S New Ballas Rd Ste 507A, Saint Louis, MO 63141. The listed phone number is (314) 251-6800.

What is Megan Knoernschild's specialty?

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

Is Megan Knoernschild enrolled in Medicare?

Yes. Megan Knoernschild 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 Megan Knoernschild accept?

Health plans from Anthem Blue Cross and Blue Shield and Medica list Megan Knoernschild 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 Megan Knoernschild affiliated with any hospitals?

According to CMS data, Megan Knoernschild is affiliated with Mercy Hospital St Louis and Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Megan Knoernschild was last updated on April 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.