MAHMOUD ALSAYED (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1215288568
Endocrinology, Diabetes & Metabolism Physician
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Profile Insights
NPPES metrics only — not quality of care.
455 ENDOCRINOLOGY in IL
Provider Addresses for MAHMOUD ALSAYED (M.D.)
30043 N WAUKEGAN RD
106
LAKE BLUFF, IL 600441022
Phone: (773) 644-1177
Type: Mailing
3333 GREEN BAY RD
NORTH CHICAGO, IL 600643037
Phone: (847) 578-3227
Type: Location
4201 WINFIELD RD
WARRENVILLE, IL 605554025
Phone:
Type: Mailing
133 E BRUSH HILL RD STE 310
ELMHURST, IL 601265662
Phone: (331) 221-9003
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $162.
Total Amount is formed as General ($162) + Research ($0) + Ownership ($0) = $162.
Last reported payment date: 2023-11-02 • Largest payer in this snapshot: SANOFI-AVENTIS U.S. LLC ($149).
Total Amount
$162
General + Research + Ownership
Payments
3
Total payment records
General Amount
$162
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| SANOFI-AVENTIS U.S. LLC | $149 |
| Abbott Laboratories | $13 |
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: 2023-11-18
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20170605001820 | I | Endocrinology | AZ | TBD |
| I20231118000222 | I | Endocrinology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 70 | 54 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 69 | 22 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 32 | 32 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 29 | 16 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 29 | 27 | $0 |
Insurance plans in this area (ZIP 60044)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| E N D O C R I N O L O G Y | IL | |
| N E U R O L O G Y | IL | |
| Hospitalist, Internal Medicine | IL | |
| O P H T H A L M O L O G Y | IL | |
| - | IL | |
| E N D O C R I N O L O G Y | IL | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology | IL | |
| Clinical Social Worker | IL | |
| Certified Nurse Midwife (Cnm) | IL |
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