DR. SAMUEL ANDREW JOHNSON (MD) – Nephrology Physician, NPI 1225255128
Nephrology Physician
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Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
431 NEPHROLOGY in GA
Provider Addresses for DR. SAMUEL ANDREW JOHNSON (MD)
55 WHITCHER STREET
SUITE 460
MARIETTA, GA 300601155
Phone: (770) 427-7389
Fax: (770) 427-1492
Type: Mailing
55 WHITCHER ST NE
SUITE 460
MARIETTA, GA 300601155
Phone: (770) 427-7389
Fax: (770) 427-1492
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 37 Open Payments records for all available years, with a total value of $764.
Total Amount is formed as General ($764) + Research ($0) + Ownership ($0) = $764.
Last reported payment date: 2024-12-13 • Largest payer in this snapshot: Travere Therapeutics, Inc. ($143).
Total Amount
$764
General + Research + Ownership
Payments
37
Total payment records
General Amount
$764
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-13
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: 2012-09-19
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 |
|---|---|---|---|---|
| I20120919000737 | 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 | 866 | 343 | $0 |
| 76937 | Ultrasonic guidance for blood vessel access | 346 | 185 | $0 |
| 99152 | Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 335 | 178 | $0 |
| 36902 | Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | 281 | 162 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 254 | 221 | $0 |
Insurance plans in this area (ZIP 30060)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Radiology | PA | |
| Vascular Surgery | GA | |
| Interventional Radiology | GA | |
| Interventional Radiology, Diagnostic Radiology | PA | |
| Vascular Surgery | GA | |
| Vascular Surgery | GA | |
| Nephrology, Internal Medicine, Nephrology | AR | |
| Nephrology, Internal Medicine | GA | |
| Nurse Practitioner | GA |
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