DR. MUHAMMAD NAJJAR (M.D.) – Sleep Medicine (Psychiatry & Neurology) Physician, NPI 1265489140
Sleep Medicine (Psychiatry & Neurology) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,188 NEUROLOGY in IL
Provider Addresses for DR. MUHAMMAD NAJJAR (M.D.)
1535 LAKE COOK RD STE 206
NORTHBROOK, IL 600621451
Phone: (847) 674-3600
Fax: (847) 674-3639
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 10 Open Payments records for all available years, with a total value of $154,393.
Total Amount is formed as General ($154,393) + Research ($0) + Ownership ($0) = $154,393.
Last reported payment date: 2024-05-08 • Largest payer in this snapshot: SNAP Diagnostics LLC ($154,164).
Total Amount
$154,393
General + Research + Ownership
Payments
10
Total payment records
General Amount
$154,393
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| SNAP Diagnostics LLC | $154,164 |
| HARMONY BIOSCIENCES LLC | $157 |
| Avadel CNS Pharmaceuticals, LLC | $30 |
| Axsome Therapeutics, Inc. | $22 |
| JAZZ PHARMACEUTICALS INC. | $21 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-02-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040202000409 | I | Neurology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 48 | 41 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 22 | 22 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $0 |
| 95811 | Sleep study in sleep lab with continuous airway pressure (6 years or older) | 19 | 19 | $0 |
Insurance plans in this area (ZIP 60062)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| - | IL | |
| - | IL | |
| Gastroenterology, Internal Medicine | WI | |
| - | IL | |
| O P H T H A L M O L O G Y | NY | |
| O T O L A R Y N G O L O G Y | CA | |
| Certified Registered Nurse Anesthetist (Crna) | IA | |
| G A S T R O E N T E R O L O G Y | FL |
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