DR. CARMEN IRENA NAN (M.D.) – Internal Medicine Physician, NPI 1912943424
Internal Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
2,491 HOSPITALIST in FL
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Provider Addresses for DR. CARMEN IRENA NAN (M.D.)
PO BOX 10744
CLEARWATER, FL 337578744
Phone: (727) 532-0002
Fax: (727) 266-4943
Type: Mailing
4211 VAN DYKE RD STE 200
LUTZ, FL 335588005
Phone: (813) 321-6237
Fax: (813) 463-1801
Type: Mailing
Van Dyke Road, Lutz, Hillsborough County, Florida, 33548, United States
SUITE 200
LUTZ, FL 335588005
Phone: (813) 321-6237
Fax: (813) 463-1801
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: 2010-11-15
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 |
|---|---|---|---|---|
| I20101115001019 | I | Hospitalist | FL | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 406 | 217 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 100 | 73 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 93 | 92 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 73 | 71 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 65 | 36 | $0 |
Insurance plans in this area (ZIP 33757)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | FL | |
| - | FL | |
| Certified Registered Nurse Anesthetist (Crna) | MI | |
| Internal Medicine | FL | |
| Family Practice | FL | |
| Family Practice | FL | |
| Nurse Practitioner | FL | |
| - | FL | |
| - | FL | |
| - | GA |
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