DR. NATHAN S HAHN (MD) – Anesthesiology Physician, NPI 1104806280
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
556 ANESTHESIOLOGY in IA
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Provider Addresses for DR. NATHAN S HAHN (MD)
MercyOne Waterloo Medical Center, 3421, West 9th Street, Waterloo, Black Hawk County, Iowa, 50702, United States
WATERLOO, IA 507025401
Phone: (319) 272-5000
Fax: (319) 272-5264
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $72.
Total Amount is formed as General ($72) + Research ($0) + Ownership ($0) = $72.
Last reported payment date: 2024-05-09 • Largest payer in this snapshot: Fisher & Paykel Healthcare Inc ($35).
Total Amount
$72
General + Research + Ownership
Payments
3
Total payment records
General Amount
$72
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Fisher & Paykel Healthcare Inc | $35 |
| Edwards Lifesciences Corporation | $24 |
| Merck Sharp & Dohme LLC | $13 |
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: 2019-08-07
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 |
|---|---|---|---|---|
| I20190807003740 | I | Anesthesiology | KY | 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 |
|---|---|---|---|---|
| 36620 | Insertion of artery tube for blood sampling or infusion through skin | 14 | 14 | $0 |
Insurance plans in this area (ZIP 50702)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | IA | 01402 | Anesthesia for open or endoscopic total knee joint replacement | 21 | 21 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | IN | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| Certified Registered Nurse Anesthetist (Crna) | KY | |
| Certified Registered Nurse Anesthetist (Crna) | KY | |
| Certified Registered Nurse Anesthetist (Crna) | AL | |
| Certified Registered Nurse Anesthetist (Crna) | KY | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Certified Registered Nurse Anesthetist (Crna) | KY | |
| A N E S T H E S I O L O G Y | KY | |
| Certified Registered Nurse Anesthetist (Crna) | TN |
Reviews
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