CHAMBERLAIN I OBIALO (MD) – Nephrology Physician, NPI 1881694529
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
431 NEPHROLOGY in GA
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Provider Addresses for CHAMBERLAIN I OBIALO (MD)
Citizen's Trust Bank, 75, Piedmont Avenue Northeast, Sweet Auburn, Atlanta, Georgia, 30308, United States
STE 700
ATLANTA, GA 303032544
Phone: (404) 756-1400
Fax: (404) 756-1402
Type: Mailing
1800, Howell Mill Road Northwest, Atlantic Station, Atlanta, Georgia, 30318, United States
STE 275
ATLANTA, GA 303182538
Phone: (404) 756-1480
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 11 Open Payments records for all available years, with a total value of $371.
Total Amount is formed as General ($371) + Research ($0) + Ownership ($0) = $371.
Last reported payment date: 2024-07-19 • Largest payer in this snapshot: Amgen Inc. ($194).
Total Amount
$371
General + Research + Ownership
Payments
11
Total payment records
General Amount
$371
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $194 |
| CVRx, Inc. | $128 |
| Travere Therapeutics, Inc. | $33 |
| AstraZeneca Pharmaceuticals LP | $16 |
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: 2010-12-08
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 |
|---|---|---|---|---|
| I20101208001328 | 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 | 202 | 47 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 191 | 30 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 176 | 36 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 82 | 23 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 55 | 31 | $0 |
Insurance plans in this area (ZIP 30303)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | GA | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 920 | 96 |
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