SHERWIN S. FOSTER (M.D.) – Nephrology Physician, NPI 1720074990
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
35 NEPHROLOGY in ID
Loading map...
Provider Addresses for SHERWIN S. FOSTER (M.D.)
Hess Street, Hayden, Kootenai County, Idaho, 83835, United States
SUITE C
HAYDEN, ID 838358718
Phone: (208) 762-7760
Fax: (208) 762-7740
Type: Mailing
1986 W HAYDEN AVE
HAYDEN, ID 838357412
Phone: (208) 762-7760
Fax: (208) 762-7740
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $26.
Total Amount is formed as General ($26) + Research ($0) + Ownership ($0) = $26.
Last reported payment date: 2023-05-30 • Largest payer in this snapshot: Calliditas Therapeutics US Inc. ($26).
Total Amount
$26
General + Research + Ownership
Payments
1
Total payment records
General Amount
$26
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Calliditas Therapeutics US Inc. | $26 |
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: 2008-09-24
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20071130000417 | I | Nephrology | WA | TBD |
| I20080924000265 | I | Nephrology | ID | 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 | 4,517 | 504 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 372 | 326 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 241 | 95 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 171 | 151 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 124 | 118 | $0 |
Insurance plans in this area (ZIP 83835)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | ID | 90935 | Hemodialysis procedure with one physician evaluation | 109 | 32 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | ID | |
| - | ID | |
| - | ID |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.