DR. MOUNZER YASSIN-KASSAB (M.D.) – Vascular Neurology Physician, NPI 1073557310
Vascular Neurology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
965 NEUROLOGY in MI
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Provider Addresses for DR. MOUNZER YASSIN-KASSAB (M.D.)
804 SERVICE RD STE A109B
EAST LANSING, MI 488247015
Phone: (517) 353-8122
Fax: (517) 432-3713
Type: Mailing
Service Road, East Lansing, Ingham County, Michigan, 48824, United States
EAST LANSING, MI 488247015
Phone: (517) 884-2976
Fax: (517) 432-3928
Type: Mailing
804, Service Road, East Lansing, Ingham County, Michigan, 48824, United States
ROOM A217
EAST LANSING, MI 488247040
Phone: (517) 353-8122
Type: Location
804 SERVICE RD STE A217
EAST LANSING, MI 488247015
Phone: (517) 353-8122
Fax: (517) 432-3713
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 254 Open Payments records for all available years, with a total value of $160,812.
Total Amount is formed as General ($160,812) + Research ($0) + Ownership ($0) = $160,812.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: UCB, Inc. ($123,448).
Total Amount
$160,812
General + Research + Ownership
Payments
254
Total payment records
General Amount
$160,812
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| UCB, Inc. | $123,448 |
| Neurelis, Inc. | $36,672 |
| AstraZeneca Pharmaceuticals LP | $210 |
| EMD Serono, Inc. | $94 |
| Alnylam Pharmaceuticals Inc. | $64 |
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: 2021-09-22
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 |
|---|---|---|---|---|
| I20050125000451 | I | Neurology | MI | TBD |
| I20210922000342 | I | Neurology | TN | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 47 | 37 | $0 |
| 99291 | Critical care, first 30-74 minutes | 47 | 39 | $0 |
| 95816 | Measurement of brain wave activity (eeg), awake and drowsy | 42 | 41 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 36 | 28 | $0 |
| 95819 | Measurement of brain wave activity (eeg), awake and asleep | 23 | 23 | $0 |
Insurance plans in this area (ZIP 48824)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | MI | 95819 | Measurement and recording of brain wave (EEG) activity, awake and asleep | 95 | 94 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | TN | |
| H O S P I T A L I S T | TN | |
| Hand Surgery, Plastic And Reconstructive Surgery | TN | |
| Physician Assistant | TN | |
| P S Y C H I A T R Y | TN | |
| Internal Medicine | TN | |
| U R O L O G Y | CT | |
| Internal Medicine | WI | |
| General Surgery | TN | |
| Nurse Practitioner | TN |
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