DR. JOHN GREGORY MARKLEY (M.D.) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1932190980
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
130 THORACIC SURGERY in MO
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Provider Addresses for DR. JOHN GREGORY MARKLEY (M.D.)
Jack in the Box, South 18th Street, Kansas City, Wyandotte County, Kansas, 66102, United States
KANSAS CITY, MO 641843966
Phone: (573) 884-3300
Fax: (573) 884-0973
Type: Mailing
Hospital Drive, Columbia, Boone County, Missouri, 65212, United States
COLUMBIA, MO 652120001
Phone: (573) 882-6955
Fax: (573) 884-0437
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 79 Open Payments records for all available years, with a total value of $9,741.
Total Amount is formed as General ($9,741) + Research ($0) + Ownership ($0) = $9,741.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Edwards Lifesciences Corporation ($6,958).
Total Amount
$9,741
General + Research + Ownership
Payments
79
Total payment records
General Amount
$9,741
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Edwards Lifesciences Corporation | $6,958 |
| Medtronic, Inc. | $1,540 |
| ABIOMED | $578 |
| Terumo Cardiovascular Systems Corporation | $150 |
| Janssen Pharmaceuticals, Inc | $130 |
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: 2007-06-06
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 |
|---|---|---|---|---|
| I20070606000101 | I | Cardiac Surgery | MO | 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 |
|---|---|---|---|---|
| 33361 | Replacement of aortic valve through the skin and femoral artery | 53 | 53 | $0 |
Insurance plans in this area (ZIP 64184)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y/ O N C O L O G Y | PA | |
| General Surgery | MO | |
| Family Practice | MO | |
| Psychiatry, Neurology | MO | |
| - | MO | |
| - | MO | |
| - | OH | |
| Family Practice | MO | |
| - | WA | |
| Diagnostic Radiology | MO |
Reviews
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