KATHERINE RENFER (DO) – Family Medicine Physician, NPI 1134571763
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,418 FAMILY PRACTICE in MI
Provider Addresses for KATHERINE RENFER (DO)
2025 W CHEESMAN RD
ALMA, MI 488019760
Phone: (989) 463-3451
Fax: (989) 463-4956
Type: Mailing
805, South Northshore Drive, Bearden, Knoxville, Knox County, Tennessee, 37919, United States
KNOXVILLE, TN 379197551
Phone: (865) 212-5570
Fax: (865) 766-2650
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: 2025-08-18
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 |
|---|---|---|---|---|
| I20250818004006 | I | Family Practice | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 48801)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MI | |
| Nurse Practitioner | OK | |
| E N D O C R I N O L O G Y | OK | |
| P S Y C H I A T R Y | MI | |
| Internal Medicine | MI |
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