CHAKER DAHAN (MD) – Internal Medicine Physician, NPI 1003803412
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
12,368 INTERNAL MEDICINE in FL
Provider Addresses for CHAKER DAHAN (MD)
6833 Valhalla Way
Windermere, FL 347865627
Phone: (321) 231-6795
Fax: (407) 217-5856
Type: Location
7727 LAKE UNDERHILL RD
ORLANDO, FL 328228224
Phone: (407) 821-3508
Type: Location
6833 VALHALLA WAY
WINDERMERE, FL 347865627
Phone: (321) 231-6795
Fax: (407) 217-5856
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 12 Open Payments records for all available years, with a total value of $556.
Total Amount is formed as General ($556) + Research ($0) + Ownership ($0) = $556.
Last reported payment date: 2024-09-04 • Largest payer in this snapshot: Janssen Pharmaceuticals, Inc ($317).
Total Amount
$556
General + Research + Ownership
Payments
12
Total payment records
General Amount
$556
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-04
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2026-02-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 5 Medicare enrollment records; no due dates published yet.
Enrollment records
5
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 |
|---|---|---|---|---|
| I20040113000708 | I | Internal Medicine | KY | TBD |
| I20051028000083 | I | Internal Medicine | FL | TBD |
| I20231104000209 | I | Internal Medicine | IN | TBD |
| I20240425000349 | I | Internal Medicine | NJ | TBD |
| I20260211003440 | I | Internal Medicine | VA | 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 | 1,891 | 615 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 233 | 218 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 170 | 169 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 137 | 134 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 87 | 86 | $0 |
Insurance plans in this area (ZIP 34786)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| Internal Medicine | FL | |
| Internal Medicine, Nephrology | PA | |
| Internal Medicine | FL | |
| - | FL | |
| Internal Medicine | FL | |
| Family Practice | FL | |
| Internal Medicine | FL | |
| Internal Medicine | FL | |
| Internal Medicine | FL |
Reviews
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