DR. WARREN P THAI (MD) – Hospitalist Physician, NPI 1902923451
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
49 GENERAL PRACTICE in NV
Provider Addresses for DR. WARREN P THAI (MD)
PO BOX 18228
RENO, NV 895110228
Phone: (702) 453-3799
Fax: (702) 453-5741
Type: Mailing
801 E WILLIAMS AVE
FALLON, NV 894063052
Phone: (702) 453-3799
Fax: (702) 453-5741
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 $125.
Total Amount is formed as General ($125) + Research ($0) + Ownership ($0) = $125.
Last reported payment date: 2023-03-27 • Largest payer in this snapshot: Horizon Therapeutics plc ($125).
Total Amount
$125
General + Research + Ownership
Payments
1
Total payment records
General Amount
$125
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-03-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Horizon Therapeutics plc | $125 |
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: 2011-02-07
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 |
|---|---|---|---|---|
| I20090902000149 | I | Internal Medicine | NV | TBD |
| I20110207000600 | I | Internal Medicine | CA | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 153 | 62 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 73 | 27 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 67 | 63 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 57 | 53 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 89511)
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