STEPHEN LACKEY CHASTAIN (M.D.) – Cardiovascular Disease Physician, NPI 1194784256
Cardiovascular Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
12,368 INTERNAL MEDICINE in FL
Provider Addresses for STEPHEN LACKEY CHASTAIN (M.D.)
9611 N US HIGHWAY 1
#166
SEBASTIAN, FL 329586363
Phone: (772) 581-3990
Fax: (772) 581-3991
Type: Mailing
5850 SE COMMUNITY DR
STUART, FL 349976420
Phone: (772) 324-3500
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $1,586.
Total Amount is formed as General ($1,586) + Research ($0) + Ownership ($0) = $1,586.
Last reported payment date: 2024-03-19 • Largest payer in this snapshot: Bard Peripheral Vascular, Inc. ($1,586).
Total Amount
$1,586
General + Research + Ownership
Payments
1
Total payment records
General Amount
$1,586
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Bard Peripheral Vascular, Inc. | $1,586 |
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: 2013-07-17
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 |
|---|---|---|---|---|
| I20130717000043 | I | Cardiovascular Disease (Cardiology) | 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 | 5,712 | 839 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 1,006 | 708 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 702 | 641 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 519 | 263 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 264 | 256 | $0 |
Insurance plans in this area (ZIP 32958)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | FL | 85610 | Blood test, clotting time | 99 | 13 |
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