NICHOLAS WARREN (M.D.) – Emergency Medicine Physician, NPI 1225424153
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,351 EMERGENCY MEDICINE in MO
Provider Addresses for NICHOLAS WARREN (M.D.)
2525 GLENN HENDREN DR
LIBERTY, MO 64068
Phone: (816) 792-7000
Type: Location
2609 GLENN HENDREN DR
LIBERTY, MO 640683313
Phone: (816) 407-4555
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.
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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: 2022-02-23
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 |
|---|---|---|---|---|
| I20220223000516 | I | Emergency Medicine | FL | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 529 | 508 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 246 | 238 | $0 |
| 93042 | Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 183 | 180 | $0 |
| 99291 | Critical care, first 30-74 minutes | 92 | 91 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 38 | 38 | $0 |
Insurance plans in this area (ZIP 64068)
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Group practice members
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