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DR. AHMED SAYED YOUSSEF MD
NPI 1700303054
Pediatrics in Mount Vernon, IL

Active since August 28, 2017PECOS Enrolled
1007 S 42ND ST STE 1, MOUNT VERNON, IL 62864(161) 899-3040 Get Directions Write a Review

NPPES record last updated: May 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 8, 2026, Jul 21, 2022, Mar 11, 2021 and 1 more (4 updates tracked since 2017).

About Dr. Ahmed Sayed Youssef Md NPPES

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

DR. AHMED SAYED YOUSSEF MD (NPI 1700303054) is an individual pediatrics provider in Mount Vernon, Illinois, licensed in Illinois (036.154216) and active in the NPI registry since August 2017. He is enrolled in Medicare PECOS and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1700303054
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. AHMED SAYED YOUSSEFCredential: MD
Location Address1007 S 42ND ST STE 1Mount Vernon, IL 62864-6217
Mailing Address1007 S 42nd St Ste 1Mount Vernon, IL 62864-6217 · (161) 899-3040
Phone(161) 899-3040
Sole ProprietorNo
Enumeration DateAugust 28, 2017
Last NPPES UpdateMay 8, 20264 updates tracked since enumeration
NPPES CertifiedMay 8, 2026
✔ NPI 1700303054 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in IL · 036.154216✔ Licensed in MO · 2024018256
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1007 S 42ND ST STE 1, Mount Vernon, IL 62864
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Secondary Practice Location 1

Location 1615 S New Ballas RdSaint Louis, MO 63141-8221 · Phone (314) 251-6299 · Fax (314) 251-4450

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ahmed Sayed Youssef Md 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.

Medicare Billing Reassignments

3

Medicare enrollment records show Ahmed Youssef reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Good Samaritan Regional Health Center
0.3 mi
Specialist
1 GOOD SAMARITAN WAY
Mount Vernon, IL 62864
  • Reassigned Medicare billing, Illinois enrollment
  • 284 clinicians in this Medicare group
NPI 1134457955 (618) 899-4600
St. Mary's Hospital, Centralia, Illinois
18 mi
Anesthesiology
400 N PLEASANT AVE
Centralia, IL 62801
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: St Marys Hospital Centralia Illinois
  • 392 clinicians in this Medicare group
NPI 1477097871 (618) 436-6056
Mainegeneral Medical Center
1,078 mi
General Acute Care Hospital
35 MEDICAL CENTER PARKWAY
Augusta, ME 04330
  • Reassigned Medicare billing, Maine enrollment
  • 978 clinicians in this Medicare group
NPI 1083949184 (207) 872-4454

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62864 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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.

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 Ahmed Youssef's NPI number?

The NPI number for Ahmed Youssef is 1700303054. It was assigned to this individual provider in the NPPES registry on August 28, 2017.

Where is Ahmed Youssef located?

Ahmed Youssef practices at 1007 S 42nd St Ste 1, Mount Vernon, IL 62864. The listed phone number is (161) 899-3040.

What is Ahmed Youssef's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Ahmed Youssef enrolled in Medicare?

Yes. Ahmed Youssef is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ahmed Youssef's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ahmed Youssef reassigns Medicare benefits to 3 organizations: Good Samaritan Regional Health Center (Mount Vernon, IL), St. Mary's Hospital, Centralia, Illinois (Centralia, IL) and Mainegeneral Medical Center (Augusta, ME). Each 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 Ahmed Youssef's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ahmed Youssef accept?

Health plans from Anthem Blue Cross and Blue Shield list Ahmed Youssef 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.

When was this NPI record last updated?

The NPPES record for Ahmed Youssef was last updated on May 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.