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MS. ALYSSA MICHELLE MEIER PA
NPI 1700342847
Physician Assistant in Saint Peters, MO

Active since February 13, 2019PECOS Enrolled
10 HOSPITAL DR, DEPT EMERGENCY MED, SAINT PETERS, MO 63376(314) 362-9123(314) 747-9160 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 4, 2021, Feb 13, 2019 (2 updates tracked since 2019).

About Ms. Alyssa Michelle Meier Pa NPPES

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

MS. ALYSSA MICHELLE MEIER PA (NPI 1700342847) is an individual physician assistant in Saint Peters, Missouri, licensed in Missouri (2019004820) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700342847
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMS. ALYSSA MICHELLE MEIERCredential: PA
Location Address10 HOSPITAL DR, DEPT EMERGENCY MEDSaint Peters, MO 63376-1659
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-9123 · Fax (314) 747-9160
Phone(314) 362-9123
Fax(314) 747-9160
Sole ProprietorNo
Enumeration DateFebruary 13, 2019
Last NPPES UpdateJuly 14, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 22, 2021
✔ NPI 1700342847 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 · 2019004820
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.
10 HOSPITAL DR, Saint Peters, MO 63376
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Alyssa Michelle Meier Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 2

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.

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.
74 services71 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.
20 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63376 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.

MS. KELSEY LYNN HARRIS PA
Physician Assistant
10 HOSPITAL DR, DEPT EMERGENCY MED
SAINT PETERS, MO 63376
St. Charles County (314) 362-9123
MICHELLE L. MALONEY RN BC-ANP
Nurse Practitioner (Adult Health)
10 HOSPITAL DR, STE 100
SAINT PETERS, MO 63376
St. Charles County (636) 916-7272
DR. GERALD R. JOYCE M.D.
Anesthesiology
10 HOSPITAL DR
SAINT PETERS, MO 63376
St. Charles County (314) 895-3828
DR. NANCY E. TRAN M.D.
Anesthesiology
10 HOSPITAL DR
ST PETERS, MO 63376
St. Charles County (314) 895-3828
BARNES JEWISH ST. PETERS HOSPITAL INC
Clinical Medical Laboratory
10 HOSPITAL DR
SAINT PETERS, MO 63376
St. Charles County (636) 916-9000
DR. BRENTON PENNICOOKE MD
Neurological Surgery
10 HOSPITAL DR, DEPT NEUROLOGICAL SURGERY
SAINT PETERS, MO 63376
St. Charles County (314) 362-3577
SHARON GILLARDI CRNA
Nurse Anesthetist, Certified Registered
10 HOSPITAL DR
SAINT PETERS, MO 63376
St. Charles County (800) 233-7224
DR. LAWRENCE OSEI MD
Internal Medicine (Critical Care Medicine)
10 HOSPITAL DR, DEPT ANESTHESIOLOGY
SAINT PETERS, MO 63376
St. Charles County (800) 862-9980

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 Alyssa Meier's NPI number?

The NPI number for Alyssa Meier is 1700342847. It was assigned to this individual provider in the NPPES registry on February 13, 2019.

Where is Alyssa Meier located?

Alyssa Meier practices at 10 Hospital Dr Dept Emergency Med, Saint Peters, MO 63376. The listed phone number is (314) 362-9123.

What is Alyssa Meier's specialty?

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

Is Alyssa Meier enrolled in Medicare?

Yes. Alyssa Meier is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Alyssa Meier was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.