DR. WILLIAM R. MARRIOTT (M.D.) – Emergency Medicine Physician, NPI 1003907494
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,673 EMERGENCY MEDICINE in OH
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Provider Addresses for DR. WILLIAM R. MARRIOTT (M.D.)
2950, Robertson Avenue, Cincinnati, Hamilton County, Ohio, 45209, United States
2ND FLOOR
CINCINNATI, OH 452091268
Phone: (513) 281-4400
Fax: (513) 587-8213
Type: Mailing
Miami Valley Hospital, 1, Wyoming Street, South Park Historic District, Dayton, Montgomery County, Ohio, 45409, United States
DAYTON, OH 454092722
Phone: (513) 281-4400
Fax: (513) 587-8213
Type: Location
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: 2010-10-20
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 |
|---|---|---|---|---|
| I20101020000596 | I | Emergency Medicine | OH | 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 | 107 | 106 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 67 | 67 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 20 | 20 | $0 |
Insurance plans in this area (ZIP 45209)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | OH | |
| Internal Medicine | OH | |
| Emergency Medicine | OH | |
| Emergency Medicine | OH | |
| Emergency Medicine | OH | |
| Emergency Medicine | OH | |
| Physician Assistant | OH | |
| Nurse Practitioner | OH | |
| Emergency Medicine | OH | |
| Emergency Medicine | OH |
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