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SYED SOHAIL AHMED M.D.
NPI 1639278138
Psychiatry & Neurology - Neurology in Hammond, IN

Active since September 21, 2006PECOS EnrolledAccepts Medicare Assignment
5500 HOHMAN AVENUE, SUITE 1E, HAMMOND, IN 46320(219) 853-1300 Get Directions Write a Review

NPPES record last updated: April 19, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Syed Sohail Ahmed M.d. NPPES

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

SYED SOHAIL AHMED M.D. (NPI 1639278138) is an individual neurology provider in Hammond, Indiana, licensed in Illinois (036087295) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Mt Sinai Hospital Medical Center, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1639278138
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameSYED SOHAIL AHMEDCredential: M.D.
Location Address5500 HOHMAN AVENUE, SUITE 1EHammond, IN 46320
Mailing Address2315 East 93rd Street, Suite 336Chicago, IL 60617 · (773) 768-6400 · Fax (773) 768-6373
Phone(219) 853-1300
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateSeptember 21, 2006
Last NPPES UpdateApril 19, 2022
NPPES CertifiedApril 19, 2022
✔ NPI 1639278138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in IL · 036087295
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.
5500 HOHMAN AVENUE, Hammond, IN 46320
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Other Names 1

Other Name (5)S. Sohail Ahmed M.d.

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

Syed Sohail Ahmed M.d. 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 ID2264520212
PECOS Enrollment IDI20071108000728
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 Syed Ahmed reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health & Hospitals Corporation
13 mi
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900
Mount Sinai Community Foudation
14 mi
Internal Medicine
2701 W 68TH ST
Chicago, IL 60629
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Mount Sinai Community Foundation
  • 646 clinicians in this Medicare group
NPI 1104242718 (773) 884-7920
Saint Anthony Health Affiliates
17 mi
Multi-Specialty
4192 S ARCHER AVE
Chicago, IL 60632
  • Reassigned Medicare billing, Illinois enrollment
  • 210 clinicians in this Medicare group
NPI 1295757771 (773) 254-2222

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 5

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
179 services175 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
127 services92 patients
Measurement of brain wave activity (eeg), awake and asleep 95819
The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.
38 services37 patients
Measurement of brain wave activity (eeg), awake and drowsy 95816
Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.
24 services24 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.
17 services17 patients

Hospital Affiliations CMS Care Compare 4

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

Mt Sinai Hospital Medical Center

Acute Care Hospitals · Chicago, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140018
Location1500 S Fairfield AveChicago, IL 60608 · Cook County
Emergency services Birthing friendly

Advocate Trinity Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140048
Location2320 E 93rd StChicago, IL 60617 · Cook County
Emergency services Birthing friendly

Saint Anthony Hospital

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140095
Location2875 West 19th StreetChicago, IL 60623 · Cook County
Emergency services Birthing friendly

Advocate Christ Hospital & Medical Center

Acute Care Hospitals · Oak Lawn, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140208
Location4440 W 95th StreetOak Lawn, IL 60453 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46320 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
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
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

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

ST. MARGARET MERCY HEALTHCARE CENTERS, INC
Otolaryngology (Otolaryngology/Facial Plastic Surgery)
5500 HOHMAN AVENUE, SUITE 2A
HAMMOND, IN 46320
Lake County (219) 852-1505

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 Syed Ahmed's NPI number?

The NPI number for Syed Ahmed is 1639278138. It was assigned to this individual provider in the NPPES registry on September 21, 2006. The provider is also known as S. Sohail Ahmed M.D..

Where is Syed Ahmed located?

Syed Ahmed practices at 5500 Hohman Avenue Suite 1E, Hammond, IN 46320. The listed phone number is (219) 853-1300.

What is Syed Ahmed's specialty?

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

Is Syed Ahmed enrolled in Medicare?

Yes. Syed Ahmed 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 Syed Ahmed's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Syed Ahmed reassigns Medicare benefits to 3 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL), Mount Sinai Community Foudation (Chicago, IL) and Saint Anthony Health Affiliates (Chicago, IL). 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 Syed Ahmed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Syed Ahmed accept?

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

According to CMS data, Syed Ahmed is affiliated with Mt Sinai Hospital Medical Center, Advocate Trinity Hospital, Saint Anthony Hospital and Advocate Christ Hospital & Medical Center.

When was this NPI record last updated?

The NPPES record for Syed Ahmed was last updated on April 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.