JOHN MARC SHELLENBERGER (MD) – Surgical Critical Care Physician, NPI 1548600992
Surgical Critical Care Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
354 GENERAL SURGERY in OK
Provider Addresses for JOHN MARC SHELLENBERGER (MD)
6600 S YALE AVE STE 1400
TULSA, OK 741363331
Phone:
Type: Mailing
6161 S YALE AVE
TULSA, OK 741361992
Phone: (918) 494-1805
Fax: (918) 494-4573
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 27 Open Payments records for all available years, with a total value of $1,355.
Total Amount is formed as General ($1,355) + Research ($0) + Ownership ($0) = $1,355.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: Zimmer Biomet Holdings, Inc. ($674).
Total Amount
$1,355
General + Research + Ownership
Payments
27
Total payment records
General Amount
$1,355
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Zimmer Biomet Holdings, Inc. | $674 |
| AstraZeneca Pharmaceuticals LP | $265 |
| Haemonetics Corporation | $110 |
| ABBVIE INC. | $97 |
| ATRICURE, INC. | $38 |
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: 2019-08-22
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 |
|---|---|---|---|---|
| I20190822001084 | I | General Surgery | OK | 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 | 181 | 89 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 89 | 88 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 58 | 41 | $0 |
| 99291 | Critical care, first 30-74 minutes | 39 | 13 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 33 | 33 | $0 |
Insurance plans in this area (ZIP 74136)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | OK | |
| Orthopedic Surgery, Critical Care (Intensivists) | OK | |
| Orthopedic Surgery | OK | |
| Critical Care (Intensivists), Orthopedic Surgery | OK | |
| Orthopedic Surgery | OK | |
| Physician Assistant | OK | |
| Physician Assistant | OK | |
| Physician Assistant | OK | |
| General Surgery | OK | |
| General Surgery | OK |
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