MOHAMED F ZEITOUN (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1356306799
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
180 ENDOCRINOLOGY in IN
Provider Addresses for MOHAMED F ZEITOUN (MD)
3800 Saint Mary Rd Ste 101
Valparaiso, IN 463833986
Phone: (219) 945-0600
Fax: (219) 947-6939
Type: Location
1600 S Lake Park Ave
Suite 1104
Hobart, IN 463426641
Phone: (219) 945-0600
Fax: (219) 947-6939
Type: Location
1600 S LAKE PARK AVE STE 1104
HOBART, IN 463426641
Phone: (219) 945-0600
Fax: (219) 947-6939
Type: Location
55, East 86th Avenue, Merrillville, Ross Township, Lake County, Indiana, 46410, United States
PO BOX 10645
MERRILLVILLE, IN 464106382
Phone: (219) 769-1670
Fax: (219) 738-6714
Type: Mailing
1600, South Lake Park Avenue, Hobart, Lake County, Indiana, 46342, United States
SUITE 1104
HOBART, IN 463426641
Phone: (219) 945-0600
Fax: (219) 947-6939
Type: Location
PO BOX 10069
MERRILLVILLE, IN 464110069
Phone: (219) 945-0600
Fax: (219) 947-6939
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 25 Open Payments records for all available years, with a total value of $522.
Total Amount is formed as General ($522) + Research ($0) + Ownership ($0) = $522.
Last reported payment date: 2024-11-07 • Largest payer in this snapshot: Dexcom, Inc. ($143).
Total Amount
$522
General + Research + Ownership
Payments
25
Total payment records
General Amount
$522
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Dexcom, Inc. | $143 |
| Novo Nordisk Inc | $97 |
| Medtronic, Inc. | $73 |
| Xeris Pharmaceuticals, Inc. | $67 |
| Lilly USA, LLC | $56 |
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: 2004-11-22
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 |
|---|---|---|---|---|
| I20041122000734 | I | Endocrinology | IN | 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 | 1,722 | 714 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 478 | 75 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 71 | 70 | $0 |
Insurance plans in this area (ZIP 46383)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ENDOCRINOLOGY | IN | 83036 | Hemoglobin A1C level | 267 | 266 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Endocrinology | IN | |
| Nurse Practitioner | IN | |
| Nurse Practitioner | IN | |
| Advanced Heart Failure And Transplant Cardiology, Internal Medicine | IL | |
| Nurse Practitioner | IN |
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