DR. NATHANIEL RIEB (M.D.) – Surgery Physician, NPI 1508068834
Surgery Physician
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Profile Insights
NPPES metrics only — not quality of care.
54 GENERAL SURGERY in WY
Provider Addresses for DR. NATHANIEL RIEB (M.D.)
450 Mountain View St
Powell, WY 824352212
Phone: (307) 754-7257
Fax: (307) 754-1231
Type: Location
450, Mountain View Street, Powell, Park County, Wyoming, 82435, United States
POWELL, WY 824352212
Phone: (307) 754-7257
Type: Mailing
PO BOX 35100
BILLINGS, MT 591075100
Phone: (406) 238-2500
Type: Mailing
801 N 29TH ST
BILLINGS, MT 591010905
Phone: (406) 238-2500
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $28.
Total Amount is formed as General ($28) + Research ($0) + Ownership ($0) = $28.
Last reported payment date: 2023-08-10 • Largest payer in this snapshot: Davol Inc. ($28).
Total Amount
$28
General + Research + Ownership
Payments
1
Total payment records
General Amount
$28
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-08-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Davol Inc. | $28 |
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: 2023-12-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20101117000610 | I | General Surgery | WY | TBD |
| I20210604000855 | I | General Surgery | MT | TBD |
| I20231204001705 | I | General Surgery | TX | 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 |
|---|---|---|---|---|
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 34 | 33 | $0 |
| G0121 | Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 14 | 14 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 82435)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | WY | |
| - | MT | |
| Nurse Practitioner | AZ | |
| Family Practice | MT | |
| Diagnostic Radiology | CO | |
| Diagnostic Radiology | MT | |
| Diagnostic Radiology | MT | |
| - | OR | |
| Family Practice | OH | |
| Diagnostic Radiology | MT |
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