1. Home
  2. Directory
  3. Illinois
  4. O Fallon
  5. Nurse Practitioner
  6. NPI Profile

MS. ANGELA N CROESSMAN-MARSHALL AGNP-C
NPI 1023994274
Nurse Practitioner - Adult Health in O Fallon, IL

Active since August 13, 2025PECOS EnrolledAccepts Medicare Assignment
3 SAINT ELIZABETH BLVD STE 5000, O FALLON, IL 62269(618) 641-5803(618) 607-5116 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 16, 2026, Aug 13, 2025 (2 updates tracked since 2025).

About Ms. Angela N Croessman-marshall Agnp-c NPPES

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

MS. ANGELA N CROESSMAN-MARSHALL AGNP-C (NPI 1023994274) is an individual adult health provider in O Fallon, Illinois, licensed in Illinois (209032939) and active in the NPI registry since August 2025. She is enrolled in Medicare PECOS, is affiliated with Ssm Health Saint Louis University Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1023994274
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMS. ANGELA N CROESSMAN-MARSHALLCredential: AGNP-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 · Fax (618) 607-5116
Phone(618) 641-5803
Fax(618) 607-5116
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateAugust 13, 2025
Last NPPES UpdateMarch 16, 20262 updates tracked since enumeration
NPPES CertifiedMarch 16, 2026
✔ NPI 1023994274 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
Licenses✔ Licensed in IL · 209032939✔ Licensed in MO · 2025034851
3 SAINT ELIZABETH BLVD STE 5000, O Fallon, IL 62269
Open in Google Maps ↗

Other Names 1

Former Name (1)Ms. Angela N Croessman

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.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. Angela N Croessman-marshall Agnp-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 ID1557866837
PECOS Enrollment IDI20250926001277, I20260223002842
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

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

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

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
$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 11

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

ROULA AL-DAHHAK M.D.
Psychiatry & Neurology (Neurology)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
DR. ZACHARY BERG M.D.
Internal Medicine (Pulmonary Disease)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
ELAYNA LEAH TEMARES FNP-BC
Nurse Practitioner
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
JENNIFER SCHAEFER APN
Nurse Practitioner (Family)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
SPENCER PHILIP SHOLL
Physician Assistant
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
ADAKU MENNWA UZO-OKEREKE M.D.
Psychiatry & Neurology (Neurology)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
RANDALL E DOOLEY MD
Urology
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803
DR. BASSIM ASSIOUN M.D.
Internal Medicine (Nephrology)
3 SAINT ELIZABETH BLVD STE 5000
O FALLON, IL 62269
St. Clair County (618) 641-5803

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 Angela Croessman-marshall's NPI number?

The NPI number for Angela Croessman-marshall is 1023994274. It was assigned to this individual provider in the NPPES registry on August 13, 2025. The provider is also known as Ms. Angela N Croessman.

Where is Angela Croessman-marshall located?

Angela Croessman-marshall practices at 3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 62269. The listed phone number is (618) 641-5803.

What is Angela Croessman-marshall's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Angela Croessman-marshall enrolled in Medicare?

Yes. Angela Croessman-marshall 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 Angela Croessman-marshall accept?

Health plans from Oscar Insurance Company list Angela Croessman-marshall 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 Angela Croessman-marshall affiliated with any hospitals?

According to CMS data, Angela Croessman-marshall is affiliated with Ssm Health Saint Louis University Hospital.

When was this NPI record last updated?

The NPPES record for Angela Croessman-marshall was last updated on March 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.