GARY S. ALLEN (M.D.) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1154327872
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
406 THORACIC SURGERY in FL
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Provider Addresses for GARY S. ALLEN (M.D.)
Waterman Way, Tavares, Lake County, Florida, 32278, United States
TAVARES, FL 327785252
Phone: (352) 343-1216
Fax: (352) 343-1582
Type: Location
7780 S BROADWAY STE 170
LITTLETON, CO 801222633
Phone:
Type: Mailing
1222 S Orange Ave Fl 3
Orlando, FL 328061215
Phone: (321) 841-3356
Fax: (321) 841-7799
Type: Location
3310 Waterman Way
Tavares, FL 327785250
Phone: (352) 343-1216
Fax: (352) 343-1582
Type: Location
PO BOX 935921
ATLANTA, GA 311935921
Phone:
Type: Mailing
3310 WATERMAN WAY
TAVARES, FL 327785250
Phone: (352) 343-1216
Fax: (352) 343-1582
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 107 Open Payments records for all available years, with a total value of $11,555.
Total Amount is formed as General ($11,555) + Research ($0) + Ownership ($0) = $11,555.
Last reported payment date: 2024-12-24 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($6,127).
Total Amount
$11,555
General + Research + Ownership
Payments
107
Total payment records
General Amount
$11,555
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $6,127 |
| Artivion, Inc. | $1,522 |
| Abbott Laboratories | $1,105 |
| ABIOMED | $785 |
| Getinge USA Sales, LLC | $415 |
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: 2025-12-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040826001439 | I | Thoracic Surgery | FL | TBD |
| I20251222003462 | I | Thoracic Surgery | CO | 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 |
|---|---|---|---|---|
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 45 | 23 | $0 |
| 33533 | Coronary artery bypass using artery graft, 1 graft | 28 | 28 | $0 |
| 33508 | Harvest of vein using an endoscope | 26 | 26 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 18 | 18 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 14 | 12 | $0 |
Insurance plans in this area (ZIP 32778)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIAC SURGERY | FL | 36556 | Insertion of central venous catheter for infusion, patient 5 years or older | 35 | 34 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CO | |
| Nurse Practitioner | CO | |
| Nurse Practitioner | CO | |
| Internal Medicine | CO | |
| Physician Assistant | CO | |
| Family Practice | CO | |
| Physician Assistant | CO | |
| - | CO | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MI | |
| Internal Medicine | CO |
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