MR. ROBERT ALLEN WILLIAMS (RN, CRNA) – Certified Registered Nurse Anesthetist, NPI 1750377842
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,016 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in OH
Provider Addresses for MR. ROBERT ALLEN WILLIAMS (RN, CRNA)
4549, Raynor Court, Mason, Warren County, Ohio, 45040, United States
OUTPATIENT ANESTHESIA SPECIALISTS
MASON, OH 45040
Phone: (513) 204-5696
Fax: (877) 284-4283
Type: Mailing
2000 JOSEPH E. SANKER BOULEVARD
THE UROLOGY CENTER
CINCINNATI, OH 45212
Phone: (513) 841-7600
Fax: (513) 841-7601
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 95 Open Payments records for all available years, with a total value of $1,467.
Total Amount is formed as General ($1,467) + Research ($0) + Ownership ($0) = $1,467.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: ABBVIE INC. ($426).
Total Amount
$1,467
General + Research + Ownership
Payments
95
Total payment records
General Amount
$1,467
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $426 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $310 |
| Janssen Biotech, Inc. | $215 |
| QOL Medical, LLC | $192 |
| Lilly USA, LLC | $180 |
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: 2007-12-21
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 |
|---|---|---|---|---|
| I20071221000024 | I | Certified Registered Nurse Anesthetist (Crna) | 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 |
|---|---|---|---|---|
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 124 | 124 | $0 |
| 00812 | Anesthesia for exam of colon using an endoscope | 54 | 54 | $0 |
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 45 | 44 | $0 |
| 00813 | Anesthesia for procedure on small and large bowel using an endoscope | 33 | 33 | $0 |
| 00910 | Anesthesia for other procedure on urinary system through urethra | 29 | 29 | $0 |
Insurance plans in this area (ZIP 45040)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | KY | |
| Certified Registered Nurse Anesthetist (Crna) | KY | |
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | OH | |
| Certified Registered Nurse Anesthetist (Crna) | OH |
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