DR. JOHANNES S SCHLONDORFF (M.D., PHD) – Nephrology Physician, NPI 1366422537
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,201 INTERNAL MEDICINE in OH
Provider Addresses for DR. JOHANNES S SCHLONDORFF (M.D., PHD)
700 ACKERMAN RD STE 2120
COLUMBUS, OH 432021559
Phone: (614) 293-4837
Fax: (614) 293-3125
Type: Mailing
543 TAYLOR AVE
COLUMBUS, OH 432031278
Phone: (614) 293-4837
Fax: (614) 293-3125
Type: Location
Simon C. Fireman Research Center, 99, Brookline Avenue, Audubon Circle, Fenway, Boston, Suffolk County, Massachusetts, 02215, United States
RENAL DIVISION, BIDMC; RESEARCH NORTH 304B
BOSTON, MA 022153908
Phone: (617) 667-0508
Fax: (617) 667-0495
Type: Mailing
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: 2025-07-03
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 |
|---|---|---|---|---|
| I20250703001415 | I | Internal Medicine | PA | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 98 | 81 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 82 | 41 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 60 | 60 | $0 |
| 90935 | Hemodialysis procedure with physician evaluation | 38 | 22 | $0 |
| 90945 | Dialysis procedure including 1 evaluation | 23 | 14 | $0 |
Insurance plans in this area (ZIP 43202)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | MA | 90935 | Hemodialysis procedure with one physician evaluation | 91 | 44 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| Pulmonary Disease | PA | |
| Critical Care (Intensivists), Internal Medicine, Pulmonary Disease | PA | |
| Nurse Practitioner | PA | |
| - | PA | |
| - | PA | |
| Emergency Medicine | PA | |
| Nurse Practitioner | PA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | PA | |
| Nurse Practitioner | PA |
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