GERARD J NAU (M.D.,PHD) – Infectious Disease Physician, NPI 1104890813
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
77 INFECTIOUS DISEASE in RI
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Provider Addresses for GERARD J NAU (M.D.,PHD)
Rhode Island Hospital, 593, Eddy Street, Downtown, Providence, Providence County, Rhode Island, 02903, United States
RHODE ISLAND HOSPITAL - ALDRICH 722
PROVIDENCE, RI 029034923
Phone:
Type: Mailing
1125, North Main Street, Providence, Providence County, Rhode Island, 02904, United States
PROVIDENCE, RI 029045739
Phone: (401) 793-4020
Fax: (401) 793-7401
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: 2014-05-01
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 |
|---|---|---|---|---|
| I20140501001302 | I | Infectious Disease | RI | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 59 | 36 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 57 | 56 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 35 | 31 | $0 |
Insurance plans in this area (ZIP 02903)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | RI | |
| Geriatric Medicine | RI | |
| N E P H R O L O G Y | RI | |
| Internal Medicine | RI | |
| - | RI | |
| - | RI | |
| Infectious Disease | RI | |
| - | RI | |
| Internal Medicine | RI | |
| Pulmonary Disease | RI |
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