DR. WILLIAM H HASS (MD) – Anesthesiology Physician, NPI 1801871637
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
633 ANESTHESIOLOGY in AL
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Provider Addresses for DR. WILLIAM H HASS (MD)
Fresno Post Office, Township Road 172, Fresno, White Eyes Township, Coshocton County, Ohio, 43824, United States
FRESNO, CA 937555538
Phone: (800) 436-1018
Type: Mailing
Crestwood Medical Center, 1, Hospital Drive Southwest, Westbury, Huntsville, Madison County, Alabama, 35801, United States
ANESTHESIOLOGY DEPT
HUNTSVILLE, AL 358016455
Phone: (256) 880-4187
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 15 Open Payments records for all available years, with a total value of $294.
Total Amount is formed as General ($294) + Research ($0) + Ownership ($0) = $294.
Last reported payment date: 2024-11-20 • Largest payer in this snapshot: Takeda Pharmaceuticals U.S.A., Inc. ($152).
Total Amount
$294
General + Research + Ownership
Payments
15
Total payment records
General Amount
$294
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $152 |
| Phathom Pharmaceuticals, Inc. | $56 |
| Lilly USA, LLC | $51 |
| Merz North America, Inc. | $34 |
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: 2011-10-31
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 |
|---|---|---|---|---|
| I20111031000690 | I | Anesthesiology | AL | 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 |
|---|---|---|---|---|
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 896 | 829 | $0 |
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 783 | 770 | $0 |
| 00812 | Anesthesia for exam of colon using an endoscope | 453 | 446 | $0 |
| 00813 | Anesthesia for procedure on small and large bowel using an endoscope | 450 | 449 | $0 |
| 00300 | Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back | 23 | 15 | $0 |
Insurance plans in this area (ZIP 93755)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | FL | |
| G A S T R O E N T E R O L O G Y | AL | |
| - | AL | |
| Certified Registered Nurse Anesthetist (Crna) | GA | |
| Nurse Practitioner | AL | |
| Certified Registered Nurse Anesthetist (Crna) | AL | |
| - | AL | |
| - | AL | |
| - | CA | |
| Gastroenterology, Internal Medicine | AL |
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