CHRISTOPHER BYERRUM SEAMAN (M.D.) – Cardiovascular Disease Physician, NPI 1306030242
Cardiovascular Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
386 INTERVENTIONAL CARDIOLOGY in PA
Provider Addresses for CHRISTOPHER BYERRUM SEAMAN (M.D.)
915 Old Fern Hill Rd
Bldg A - Suite 5
West Chester, PA 193804269
Phone: (610) 696-2850
Fax: (610) 696-7159
Type: Location
450 S Washington St Ste A
Gettysburg, PA 173252500
Phone: (717) 339-3105
Fax: (717) 339-3107
Type: Location
3770, Elizabeth Street, Riverside, Riverside County, California, 92506, United States
RIVERSIDE, CA 925062527
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 78 Open Payments records for all available years, with a total value of $1,624.
Total Amount is formed as General ($1,624) + Research ($0) + Ownership ($0) = $1,624.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($220).
Total Amount
$1,624
General + Research + Ownership
Payments
78
Total payment records
General Amount
$1,624
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $220 |
| Novartis Pharmaceuticals Corporation | $215 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $182 |
| ABIOMED | $172 |
| Abbott Laboratories | $171 |
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: 2015-03-20
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 |
|---|---|---|---|---|
| I20090720000303 | I | Interventional Cardiology | CA | TBD |
| I20150320001266 | I | Cardiovascular Disease (Cardiology) | PA | 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 | 165 | 94 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 165 | 100 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 147 | 131 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 114 | 114 | $0 |
| J2785 | Injection, regadenoson, 0.1 mg | 108 | 27 | $0 |
Insurance plans in this area (ZIP 19380)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Internal Medicine | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| Cardiovascular Disease (Cardiology) | NM | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology) | CA | |
| Cardiovascular Disease (Cardiology), Internal Medicine | CA | |
| - | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| Physician Assistant | CA | |
| Cardiovascular Disease (Cardiology), Internal Medicine | CA | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | MI |
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