GREG A GREENBERG (MD) – Hospitalist Physician, NPI 1013927441
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,237 FAMILY PRACTICE in CA
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Provider Addresses for GREG A GREENBERG (MD)
738, Sunriver Lane, Redding, Shasta County, California, 96001, United States
REDDING, CA 960010166
Phone: (530) 227-6361
Fax: (530) 229-3703
Type: Mailing
Shasta Regional Medical Center, 1100, Butte Street, Redding, Shasta County, California, 96001, United States
REDDING, CA 960010852
Phone: (530) 227-6361
Fax: (530) 229-3703
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $85.
Total Amount is formed as General ($85) + Research ($0) + Ownership ($0) = $85.
Last reported payment date: 2023-06-28 • Largest payer in this snapshot: ABBVIE INC. ($85).
Total Amount
$85
General + Research + Ownership
Payments
1
Total payment records
General Amount
$85
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-28
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $85 |
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: 2024-09-24
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20040825000931 | I | Family Practice | CA | TBD |
| I20240924002884 | I | Family Practice | TX | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 96001)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| EMERGENCY MEDICINE | CA | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 55 | 54 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | CA | |
| Emergency Medicine | CA | |
| Emergency Medicine | CA | |
| Anesthesiology, Interventional Pain Management | CA | |
| Emergency Medicine | CA | |
| Internal Medicine, Hospitalist, Infectious Disease | CA | |
| Internal Medicine | IA | |
| Cardiovascular Disease (Cardiology), Cardiac Electrophysiology | CA | |
| Emergency Medicine | FL | |
| Orthopedic Surgery | CA |
Reviews
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