ROBERT F III ZIMMERMAN (MD) – Nephrology Physician, NPI 1972504025
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for ROBERT F III ZIMMERMAN (MD)
Congress Street, Stroudwater, Portland, Cumberland County, Maine, 04102, United States
PORTLAND, ME 041022124
Phone: (207) 774-5222
Fax: (207) 761-4433
Type: Location
65 CENTER ST
YARMOUTH, ME 040967930
Phone: (207) 420-5358
Type: Mailing
111 FRANKLIN HEALTH CMNS
FARMINGTON, ME 049386144
Phone: (207) 779-2456
Fax: (207) 779-2496
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: 2005-08-22
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 |
|---|---|---|---|---|
| I20050822000702 | I | Nephrology | ME | 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 04102)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | ME | 90935 | Hemodialysis procedure with one physician evaluation | 163 | 88 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | ME | |
| - | ME | |
| - | ME | |
| - | ME |
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