ELIZABETH J ISALGUEZ (MD) – Internal Medicine Physician, NPI 1639304470
Internal Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
12,368 INTERNAL MEDICINE in FL
Provider Addresses for ELIZABETH J ISALGUEZ (MD)
KEYS MEDICAL GROUP
1200 KENNEDY DR
KEY WEST, FL 33040
Phone: (305) 292-5877
Fax: (305) 292-5862
Type: Mailing
1700 S Tamiami Trl
Sarasota, FL 342393509
Phone: (941) 917-4896
Fax: (941) 917-6884
Type: Location
Pop in a Box, 800, Avenida Presidente Juscelino Kubitscheck de Oliveira, Jardim Panorama, São José do Rio Preto, Região Imediata de São José do Rio Preto, Região Geográfica Intermediária de São José do Rio Preto, São Paulo, Southeast Region, 15092-450, Brazil
ORLANDO, FL 328863407
Phone: (941) 917-2600
Fax: (941) 917-7884
Type: Mailing
3224, North Roosevelt Boulevard, Key West, Monroe County, Florida, 33040, United States
KEY WEST, FL 330404114
Phone: (305) 292-5877
Type: Location
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 $252.
Total Amount is formed as General ($252) + Research ($0) + Ownership ($0) = $252.
Last reported payment date: 2023-11-07 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($125).
Total Amount
$252
General + Research + Ownership
Payments
3
Total payment records
General Amount
$252
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $125 |
| Biosense Webster, Inc. | $113 |
| Takeda Pharmaceuticals U.S.A., Inc. | $14 |
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: 2009-05-04
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 |
|---|---|---|---|---|
| I20090504000634 | I | Internal Medicine | 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 | 200 | 95 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 84 | 47 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 49 | 39 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 36 | 30 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 34 | 34 | $0 |
Insurance plans in this area (ZIP 33040)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine, Geriatric Medicine | FL | |
| Hospitalist, Family Practice | FL | |
| Family Practice | PR | |
| Hospitalist, Family Practice, Emergency Medicine | MO | |
| Internal Medicine, Hospitalist | FL | |
| Hospitalist, Internal Medicine | IN |
Reviews
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