DR. THOMAS J MCMAHON (MD) – Surgery Physician, NPI 1558399709
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
826 GENERAL SURGERY in WA
Provider Addresses for DR. THOMAS J MCMAHON (MD)
710 Birchwood Ave Ste 101
Bellingham, WA 982251720
Phone: (360) 676-0922
Type: Location
2827 Fort Missoula Rd
Missoula, MT 598047408
Phone: (406) 728-4100
Type: Location
520 N 4th Ave
Pasco, WA 993015257
Phone: (509) 547-7704
Type: Location
2901 Squalicum Pkwy
Bellingham, WA 982251851
Phone: (360) 734-5400
Type: Location
East Pennsylvania Avenue, Anaconda, Deer Lodge County, Montana, 59711, United States
ANACONDA, MT 597111999
Phone: (406) 563-8571
Fax: (406) 563-8523
Type: Mailing
1019 HILDA AVE
MISSOULA, MT 598014323
Phone: (406) 560-2170
Fax: (406) 284-0441
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 11 Open Payments records for all available years, with a total value of $591.
Total Amount is formed as General ($591) + Research ($0) + Ownership ($0) = $591.
Last reported payment date: 2024-03-10 • Largest payer in this snapshot: Globus Medical, Inc. ($383).
Total Amount
$591
General + Research + Ownership
Payments
11
Total payment records
General Amount
$591
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Globus Medical, Inc. | $383 |
| Stryker Corporation | $137 |
| Orthofix Medical, Inc. | $71 |
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: 2024-06-05
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 |
|---|---|---|---|---|
| I20031215000339 | I | General Surgery | MT | TBD |
| I20240517001958 | I | General Surgery | WY | TBD |
| I20240605001846 | 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 |
|---|---|---|---|---|
| 22853 | Insertion of cage or mesh device to spine bone and disc space during spine fusion | 15 | 12 | $0 |
| 22558 | Fusion of lower spine bone through abdomen with partial removal of disc | 12 | 12 | $0 |
Insurance plans in this area (ZIP 98225)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MT | |
| G A S T R O E N T E R O L O G Y | MT | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MT | |
| - | MT | |
| Orthopedic Surgery | CO | |
| Diagnostic Radiology | CA | |
| Certified Registered Nurse Anesthetist (Crna) | AZ | |
| Internal Medicine | MT | |
| Certified Registered Nurse Anesthetist (Crna) | WV | |
| Internal Medicine | MT |
Reviews
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