DR. LEON WILLIAM NOWIERSKI (M.D.) – Dermatology Physician, NPI 1376610048
Dermatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
61 DERMATOLOGY in ID
Provider Addresses for DR. LEON WILLIAM NOWIERSKI (M.D.)
500 W Fort St
# 111
Boise, ID 83702
Phone: (208) 422-1000
Fax: (208) 422-1319
Type: Location
100, East Warm Springs Avenue, Downtown, East End, Boise, Ada County, Idaho, 83712, United States
SUITE A
BOISE, ID 837126243
Phone: (208) 343-5910
Fax: (208) 384-8562
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: 2010-09-09
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 |
|---|---|---|---|---|
| I20100909000370 | I | Dermatology | 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 |
|---|---|---|---|---|
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 485 | 277 | $0 |
| 17003 | Destruction of precancer skin growth, 2-14 growths | 432 | 120 | $0 |
| 17000 | Destruction of precancer skin growth, 1 growth | 250 | 179 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 122 | 109 | $0 |
| 17110 | Destruction of skin growth, 1-14 growths | 101 | 88 | $0 |
Insurance plans in this area (ZIP 83702)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | ID |
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