SUNDAR RAMANATHAN (M.D.) – Nephrology Physician, NPI 1629105234
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
434 NEPHROLOGY in MI
Provider Addresses for SUNDAR RAMANATHAN (M.D.)
5080 VILLA LINDE PKWY
SUITE 2
FLINT, MI 485323423
Phone: (810) 720-0162
Fax: (810) 720-0301
Type: Location
1711 MOMENTUM PL
LOCKBOX NUMBER 231711
CHICAGO, IL 606895317
Phone: (810) 720-0162
Fax: (810) 720-0301
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: 2007-05-01
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 |
|---|---|---|---|---|
| I20070501000104 | I | Internal Medicine | MI | 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 | 432 | 267 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 376 | 93 | $0 |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | 194 | 29 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 91 | 33 | $0 |
| 90962 | Dialysis services, 1 physician visit per month (20 years or older) | 83 | 30 | $0 |
Insurance plans in this area (ZIP 48532)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MI | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 316 | 53 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | IL | |
| N E P H R O L O G Y | IL |
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