KAREN M WARBURTON (MD) – Nephrology Physician, NPI 1619902756
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
332 NEPHROLOGY in VA
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Provider Addresses for KAREN M WARBURTON (MD)
Charlottesville Post Office, 1155, Seminole Trail, Westfield, Charlottesville, Albemarle County, Virginia, 22906, United States
CHARLOTTESVILLE, VA 229069007
Phone:
Type: Mailing
Jefferson Park Avenue, Hereford Residential College, Charlottesville, Virginia, United States
WEST COMPLEX, 5TH FLOOR
CHARLOTTESVILLE, VA 229033363
Phone: (434) 924-1984
Fax: (434) 243-6284
Type: Location
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: 2016-11-14
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 |
|---|---|---|---|---|
| I20161114002321 | I | Nephrology | VA | 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 | 43 | 22 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 33 | 23 | $0 |
Insurance plans in this area (ZIP 22906)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | VA | 90935 | Hemodialysis procedure with one physician evaluation | 23 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O S U R G E R Y | VA | |
| - | VA | |
| A N E S T H E S I O L O G Y | VA | |
| - | VA | |
| - | VA | |
| - | VA | |
| - | VA | |
| - | VA | |
| Nurse Practitioner | VA | |
| - | VA |
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