HAZEM MOHAMED YASSIN (M.D.) – Hospitalist Physician, NPI 1649238809
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,302 HOSPITALIST in CA
Provider Addresses for HAZEM MOHAMED YASSIN (M.D.)
1100 Butte St
Redding, CA 960010852
Phone: (530) 244-5434
Fax: (530) 244-5436
Type: Location
200 W ARBOR DR
SAN DIEGO, CA 921039000
Phone: (800) 926-8273
Type: Location
PO BOX 232410
SAN DIEGO, CA 921932410
Phone:
Type: Mailing
Shasta Regional Medical Center, 1100, Butte Street, Redding, Shasta County, California, 96001, United States
REDDING, CA 960010852
Phone: (530) 244-5434
Fax: (530) 244-5436
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2008-08-05
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 |
|---|---|---|---|---|
| I20080805000200 | I | Hospitalist | CA | 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 | 640 | 248 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 206 | 201 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 113 | 113 | $0 |
| 99497 | Advance care planning, first 30 minutes | 102 | 102 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 61 | 32 | $0 |
Insurance plans in this area (ZIP 96001)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Hospitalist | CA | |
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Hospitalist, Internal Medicine, Hospitalist | CA | |
| Internal Medicine | NY | |
| Internal Medicine | CA | |
| Internal Medicine | PA | |
| Nurse Practitioner | CA |
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