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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. AHMED N HASSAN MD
NPI 1548426745
Psychiatry & Neurology - Neurology in Naperville, IL

Active since August 06, 2008PECOS EnrolledAccepts Medicare Assignment
120 SPALDING DR STE 308, NAPERVILLE, IL 60540(630) 527-7730(630) 527-7732 Get Directions Write a Review

NPPES record last updated: October 14, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 14, 2026, Feb 4, 2021 (2 updates tracked since 2021).

About Dr. Ahmed N Hassan Md NPPES

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

DR. AHMED N HASSAN MD (NPI 1548426745) is an individual neurology provider in Naperville, Illinois, licensed in Illinois (036121123) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS, is affiliated with Elmhurst Memorial Hospital, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1548426745
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. AHMED N HASSANCredential: MD
Location Address120 SPALDING DR STE 308Naperville, IL 60540-6521
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040 · Fax (847) 733-5315
Phone(630) 527-7730
Fax(630) 527-7732
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 1998
Enumeration DateAugust 6, 2008
Last NPPES UpdateOctober 14, 20262 updates tracked since enumeration
NPPES CertifiedOctober 14, 2026
✔ NPI 1548426745 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in IL · 036121123✔ Licensed in MO · 2010030926
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 036121123 (IL)
120 SPALDING DR STE 308, Naperville, IL 60540
Open in Google Maps ↗

Secondary Practice Location 1

Location 1912 S Wood St, M/C 796Chicago, IL 60612-4300 · Phone (312) 355-1528 · Fax (312) 413-8215

Other Identifiers 5

Medicaid010030926IL
Other206147244IL · Medicare Ptan (individual)
OtherP01308445IL · Medicare Railroad (individual)
Other206147IL · Medicare Ptan (group)
OtherCA4748IL · Medicare Railroad (group)

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ahmed N Hassan Md 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 ID8123179348
PECOS Enrollment IDI20090630000202
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

4

Medicare enrollment records show Ahmed Hassan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Edward Health Ventures
Same address
Multi-Specialty
100 SPALDING DRIVE, STE 204
Naperville, IL 60540
  • Reassigned Medicare billing, Illinois enrollment
  • 561 clinicians in this Medicare group
NPI 1538450838 (630) 527-5800
The Board Of Trustees Of The University Of Illinois
24 mi
Federally Qualified Health Center (FQHC)
3050 W 39TH PL
Chicago, IL 60632
  • Reassigned Medicare billing, Illinois enrollment
  • Also billed through NPI 1982824660 (Illinois)
  • 2,127 clinicians in this Medicare group
NPI 1932450160 (312) 413-1261
Endeavor Health Medical Group
32 mi
Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1497701882 (847) 570-5235
Sanford Clinic
379 mi
Pulmonary Disease
701 E 2ND ST
Ida Grove, IA 51445
  • Reassigned Medicare billing, South Dakota enrollment
  • 826 clinicians in this Medicare group
NPI 1265457964 (712) 364-7341

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

Areas of Expertise CMS Part B claims 4

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
377 services133 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
153 services71 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
93 services92 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
24 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL
4/5 CMS rating
OwnershipProprietary
CMS Certification Number140200
Location155 East Brush Hill RoadElmhurst, IL 60126 · Du Page County
Emergency services Birthing friendly

Edward Hospital

Acute Care Hospitals · Naperville, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140231
Location801 South WashingtonNaperville, IL 60540 · Du Page County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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 15

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

DR. ALI SHAIBANI MD
Radiology (Diagnostic Radiology)
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (312) 695-9797
ALEXA ARROYO PA-C
Physician Assistant (Surgical)
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 527-7730
CHRISTINE M HOPKINS APN-CNP
Nurse Practitioner
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 527-7730
PRAVEENA TATHINENI DO
Internal Medicine (Hematology & Oncology)
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 646-2273
DAN SEARS PA-C
Physician Assistant
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 527-7730
DR. ELIZABETH ANNE CALLAHAN DO
Physical Medicine & Rehabilitation
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 527-7730
DR. DHRUVIL J PANDYA MD
Psychiatry & Neurology (Vascular Neurology)
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 527-7730
DR. GUSTAVO CHAGOYA GAZCON M.D.
Neurological Surgery
120 SPALDING DR STE 308
NAPERVILLE, IL 60540
Dupage County (630) 527-7730

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 Hassan's NPI number?

The NPI number for Ahmed Hassan is 1548426745. It was assigned to this individual provider in the NPPES registry on August 6, 2008.

Where is Ahmed Hassan located?

Ahmed Hassan practices at 120 Spalding Dr Ste 308, Naperville, IL 60540. The listed phone number is (630) 527-7730.

What is Ahmed Hassan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Ahmed Hassan enrolled in Medicare?

Yes. Ahmed Hassan 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.

Which organizations bill Medicare for Ahmed Hassan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ahmed Hassan reassigns Medicare benefits to 4 organizations: Edward Health Ventures (Naperville, IL), The Board Of Trustees Of The University Of Illinois (Chicago, IL), Endeavor Health Medical Group (Evanston, IL) and Sanford Clinic (Ida Grove, IA). 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 Hassan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ahmed Hassan accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Ahmed Hassan 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 Ahmed Hassan affiliated with any hospitals?

According to CMS data, Ahmed Hassan is affiliated with Elmhurst Memorial Hospital and Edward Hospital.

When was this NPI record last updated?

The NPPES record for Ahmed Hassan was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.