DR. NATALIA KEYSER (M.D.) – Hospitalist Physician, NPI 1043242878
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,493 HOSPITALIST in FL
Provider Addresses for DR. NATALIA KEYSER (M.D.)
2675 Winkler Ave Fl 2
Fort Myers, FL 339019342
Phone: (855) 979-5700
Fax: (855) 979-5701
Type: Location
NCH Baker Hospital Downtown, 350, 7th Street North, Naples, Collier County, Florida, 34102, United States
NAPLES, FL 341025754
Phone: (239) 624-3997
Type: Location
Naples Post Office, 121, South Naples Road, Naples, Henderson County, North Carolina, 28760, United States
NAPLES, FL 341018569
Phone:
Type: Mailing
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: 2005-04-20
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 |
|---|---|---|---|---|
| I20050420001038 | 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 | 423 | 216 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 199 | 126 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 159 | 158 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 102 | 72 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 86 | 86 | $0 |
Insurance plans in this area (ZIP 33901)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | FL | |
| - | OH | |
| - | FL | |
| - | FL | |
| Cardiovascular Disease (Cardiology) | MN | |
| Cardiovascular Disease (Cardiology) | FL | |
| Nurse Practitioner | FL | |
| - | FL | |
| - | FL | |
| - | FL |
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