DR. MATTHEW JAMES DAY (M.D.) – Nephrology Physician, NPI 1619237328
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
431 NEPHROLOGY in GA
Provider Addresses for DR. MATTHEW JAMES DAY (M.D.)
500 E 66TH ST
SAVANNAH, GA 314054339
Phone: (912) 356-5643
Fax: (912) 354-4430
Type: Location
1120 15TH ST
BI 5070
AUGUSTA, GA 30912
Phone: (706) 721-2423
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 30 Open Payments records for all available years, with a total value of $629.
Total Amount is formed as General ($629) + Research ($0) + Ownership ($0) = $629.
Last reported payment date: 2024-12-06 • Largest payer in this snapshot: Otsuka America Pharmaceutical, Inc. ($108).
Total Amount
$629
General + Research + Ownership
Payments
30
Total payment records
General Amount
$629
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-06
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2019-11-18
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 |
|---|---|---|---|---|
| I20191118001448 | I | Nephrology | GA | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 853 | 146 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 185 | 138 | $0 |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | 173 | 24 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 102 | 38 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 99 | 79 | $0 |
Insurance plans in this area (ZIP 31405)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | GA | |
| - | ND | |
| N E P H R O L O G Y | GA |
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