CEP AMERICA-ILLINOIS HOSPITALISTS, LLP
NPI 1093380180
Internal Medicine in O Fallon, IL

Q: What is Cep America-Illinois Hospitalists, LLP's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since May 21, 2021

1 SAINT ELIZABETH BLVD, O FALLON, IL 62269(618) 234-2120 Get Directions Write a Review

NPPES record last updated: June 22, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 22, 2021, May 25, 2021, May 21, 2021 (3 updates tracked since 2021).

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About Cep America-illinois Hospitalists, Llp NPPES

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

CEP AMERICA-ILLINOIS HOSPITALISTS, LLP (NPI 1093380180) is a healthcare organization registered as an internal medicine in O Fallon, Illinois and active in the NPI registry since May 2021. The organization lists David Birdsall, Administrative Vp Of Operations, as its authorized official.

NPPES Registry Identity

NPI1093380180

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameCEP AMERICA-ILLINOIS HOSPITALISTS, LLP

Location Address1 SAINT ELIZABETH BLVDO Fallon, IL 62269-1099

Mailing Address2100 Powell St Ste 400Emeryville, CA 94608-1826 · (510) 350-2638

Phone(618) 234-2120

Organization SubpartNo

Authorized OfficialDavid BirdsallAdministrative Vp Of Operations · (510) 350-2638

Enumeration DateMay 21, 2021

Last NPPES UpdateJune 22, 20213 updates tracked since enumeration

NPPES CertifiedJune 22, 2021

✔ NPI 1093380180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

1 SAINT ELIZABETH BLVD, O Fallon, IL 62269

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cep America-illinois Hospitalists, Llp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

328

Medicare enrollment records show 328 clinicians reassign Medicare billing to Cep America-Illinois Hospitalists, LLP, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 45 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 12

Internal Medicine114

Hospitalist112

Nurse Practitioner69

Family Practice21

Emergency Medicine4

Infectious Disease2

Cardiovascular Disease (Cardiology)1

Certified Clinical Nurse Specialist (CNS)1

4 other specialties4

Nearest to this location (20)

See all 328

Chelsea Bell, FNP-C

Nurse Practitioner

NPI 1407230188

3 SAINT ELIZABETH BLVD STE 1800
O Fallon, IL 62269

(618) 233-6044

✔ PECOS✔ Accepts MedicareSame address

Dominique D'souza, MD

Hospitalist

NPI 1861078206

3 SAINT ELIZABETH BLVD STE 4000
O Fallon, IL 62269

(618) 233-7880

✔ PECOS✔ Accepts MedicareSame address

Vincent Duenas, MD

Hospitalist

NPI 1083142152

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts MedicareSame address

Kandace Lamonica, MD

Family Practice

NPI 1952864977

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts MedicareSame address

Crystal Manse, M.D.

Internal Medicine

NPI 1366702870

3 SAINT ELIZABETH BLVD STE 4000
O Fallon, IL 62269

(618) 233-5480

✔ PECOSSame address

Jennifer Martens, FNP

Nurse Practitioner

NPI 1336659523

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts MedicareSame address

Robinder Sahi, M.D.

Hospitalist

NPI 1386200657

3 ST. ELIZABETH BLVD SUITE 400
O'fallon, IL 62269

(618) 233-7880

✔ PECOS✔ Accepts MedicareSame address

Stephanie Simpson, D.O.

Hospitalist

NPI 1598183378

3 ST. ELIZABETH'S BLVD STE 4000
O'fallon, IL 62269

(618) 233-5480

✔ PECOS✔ Accepts MedicareSame address

Seema Verma

Hospitalist

NPI 1326380908

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts MedicareSame address

Andrew Gaillardetz, MD

Family Practice

NPI 1548764236

1414 CROSS ST STE 210
Shiloh, IL 62269

(618) 767-7000

✔ PECOS✔ Accepts Medicare0.5 mi

Michael Guignon, M.D.

Internal Medicine

NPI 1942542931

1414 CROSS ST STE 230
Shiloh, IL 62269

(618) 607-1260

✔ PECOS✔ Accepts Medicare0.7 mi

Danielle Frueh, FNP-BC

Nurse Practitioner

NPI 1013524487

1170 FORTUNE BLVD
Shiloh, IL 62269

(618) 997-5266

✔ PECOS✔ Accepts Medicare1.4 mi

Maaroof Islam, M.D.

Hospitalist

NPI 1548656747

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(816) 234-2120

✔ PECOS✔ Accepts Medicare2.1 mi

Caitlin Alonzo

Nurse Practitioner

NPI 1083576243

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts Medicare2.1 mi

Susan Stewart, A.N.P.

Nurse Practitioner

NPI 1588974026

3 ST. ELIZABETH'S BLVD. STE. 2800
O'fallon, IL 62269

(618) 233-6044

✔ PECOS✔ Accepts Medicare2.1 mi

Shonata West, APRN

Nurse Practitioner

NPI 1316802556

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts Medicare2.1 mi

Katy Lorenzo

Nurse Practitioner

NPI 1205348133

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts Medicare2.2 mi

Isaac Tran, M.D.

Emergency Medicine

NPI 1154777597

1 SAINT ELIZABETH BLVD
O Fallon, IL 62269

(618) 234-2120

✔ PECOS✔ Accepts Medicare2.8 mi

Mary Littlejohn, APN

Nurse Practitioner

NPI 1255779955

130 LINCOLN COURT PLACE
Belleville, IL 62221

(618) 257-2029

✔ PECOS✔ Accepts Medicare4.3 mi

Muhammad Sheikh, M.D.

Interventional Cardiology

NPI 1194107524

3 SAINT ELIZABETH BLVD STE 1800
O Fallon, IL 62269

(618) 233-6044

✔ PECOS✔ Accepts Medicare5.6 mi

See all 328 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Cep America-Illinois Hospitalists, LLP's NPI number?

The NPI number for Cep America-Illinois Hospitalists, LLP is 1093380180. It was assigned to this organization in the NPPES registry on May 21, 2021.

Where is Cep America-Illinois Hospitalists, LLP located?

Cep America-Illinois Hospitalists, LLP is located at 1 Saint Elizabeth Blvd, O Fallon, IL 62269. The listed phone number is (618) 234-2120.

What is Cep America-Illinois Hospitalists, LLP's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Cep America-Illinois Hospitalists, LLP enrolled in Medicare?

Yes. Cep America-Illinois Hospitalists, LLP is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cep America-Illinois Hospitalists, LLP?

According to the CMS Revalidation Reassignment List (October 2026 release), 328 clinicians in 12 Medicare specialties reassign their Medicare billing to Cep America-Illinois Hospitalists, LLP. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (114), Hospitalist (112) and Nurse Practitioner (69). Of these, 9 practice at this address and 45 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Cep America-Illinois Hospitalists, LLP was last updated on June 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.