ALLISON HARRIS PA-C
NPI 1790588739
Physician Assistant in O Fallon, IL

Q: What is Allison Harris's NPI number?

The NPI number for Allison Harris is 1790588739. It was assigned to this individual provider in the NPPES registry on March 27, 2025.

Q: What is Allison Harris's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Allison Harris was last updated on June 3, 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.

Active since March 27, 2025PECOS EnrolledAccepts Medicare Assignment

3 SAINT ELIZABETH BLVD STE 5000, O FALLON, IL 62269(618) 641-5803 Get Directions Write a Review

NPPES record last updated: June 3, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Jun 3, 2025, Mar 27, 2025 (2 updates tracked since 2025).

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About Allison Harris Pa-c NPPES

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

ALLISON HARRIS PA-C (NPI 1790588739) is an individual physician assistant in O Fallon, Illinois, licensed in Illinois (085011221) and active in the NPI registry since March 2025. She is enrolled in Medicare PECOS, is affiliated with St Josephs Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1790588739

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameALLISON HARRISCredential: PA-C

Location Address3 SAINT ELIZABETH BLVD STE 5000O Fallon, IL 62269-1282

Mailing Address3 Saint Elizabeth Blvd Ste 5000O Fallon, IL 62269-1282 · (618) 641-5803

Phone(618) 641-5803

Sole ProprietorNo

Medical School CMSOtherGraduated 2025

Enumeration DateMarch 27, 2025

Last NPPES UpdateJune 3, 20252 updates tracked since enumeration

NPPES CertifiedJune 3, 2025

✔ NPI 1790588739 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 IL · 085011221

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.

3 SAINT ELIZABETH BLVD STE 5000, O Fallon, IL 62269

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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

Allison Harris Pa-c 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 ID9436674132

PECOS Enrollment IDI20250415002552

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.

Hospital Affiliations CMS Care Compare 2

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

St Josephs Hospital

Acute Care Hospitals · Breese, IL

OwnershipVoluntary non-profit - Church

CMS Certification Number140145

Location9515 Holy Cross LnBreese, IL 62230 · Clinton County

Emergency services Birthing friendly

Hshs St Elizabeth's Hospital

Acute Care Hospitals · O Fallon, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140187

LocationOne St Elizabeth BoulevardO Fallon, IL 62269 · St. Clair County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62269 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

$70.42 typical visit price

range $17.51 – $139.99

Typical copayment $17.60 (range $4.37 – $34.99)

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 12

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

MS. ANGELA N CROESSMAN-MARSHALL AGNP-C

Nurse Practitioner (Adult Health)