DR. DARWIN MARTIN KOLLER (M.D.) – Pediatric Emergency Medicine (Pediatrics) Physician, NPI 1568495638
Pediatric Emergency Medicine (Pediatrics) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,131 EMERGENCY MEDICINE in TN
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Provider Addresses for DR. DARWIN MARTIN KOLLER (M.D.)
Boom Box Buns, 1324, Main Street, Main Street Business District, Over-the-Rhine, Cincinnati, Hamilton County, Ohio, 45202, United States
CINCINNATI, OH 452630001
Phone:
Type: Mailing
910, Blackford Street, Chattanooga, Hamilton County, Tennessee, 37403, United States
CHATTANOOGA, TN 374031405
Phone: (423) 778-6011
Fax: (865) 539-8008
Type: Location
2601 GENE GEORGE BLVD
SPRINGDALE, AR 727620845
Phone: (479) 725-6800
Fax: (479) 725-6582
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: 2019-05-29
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-12-31 (889 days ago).
Enrollment records
3
Earliest due date
2023-12-31
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 |
|---|---|---|---|---|
| I20111219000497 | I | Pediatric Medicine | TN | 2023-12-31 |
| I20180912000189 | I | Emergency Medicine | GA | TBD |
| I20190529002285 | I | Emergency Medicine | FL | TBD |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 45263)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| Emergency Medicine | FL | |
| - | FL | |
| Emergency Medicine | FL | |
| - | FL | |
| - | FL | |
| Emergency Medicine | FL | |
| - | FL | |
| - | IL | |
| Nurse Practitioner | FL |
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