JOHN D OHOLLERAN (MD) – Surgery Physician, NPI 1912007220
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,422 GENERAL SURGERY in IL
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Provider Addresses for JOHN D OHOLLERAN (MD)
101, East Miller Road, Sterling, Whiteside County, Illinois, 61081, United States
STERLING, IL 610811252
Phone: (815) 625-4790
Type: Location
PO BOX 3158
PORTLAND, OR 972083158
Phone: (503) 215-6494
Type: Mailing
West El Camino Real, Mountain View, Santa Clara County, California, 94039, United States
2ND FLOOR
MOUNTAIN VIEW, CA 940406203
Phone:
Type: Mailing
1510 DIVISION ST STE 210
OREGON CITY, OR 970451599
Phone: (503) 723-6525
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $171.
Total Amount is formed as General ($171) + Research ($0) + Ownership ($0) = $171.
Last reported payment date: 2023-10-20 • Largest payer in this snapshot: TELA Bio, Inc. ($144).
Total Amount
$171
General + Research + Ownership
Payments
2
Total payment records
General Amount
$171
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| TELA Bio, Inc. | $144 |
| Medtronic, Inc. | $26 |
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: 2023-08-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20100717000247 | I | General Surgery | CA | TBD |
| I20220531002703 | I | General Surgery | IA | TBD |
| I20230811003404 | I | General Surgery | OR | 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 | 61 | 22 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 15 | 15 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 15 | 11 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 14 | 14 | $0 |
Insurance plans in this area (ZIP 61081)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | OR | |
| Physician Assistant | OR | |
| Nurse Practitioner | OR | |
| - | OR | |
| N E U R O L O G Y | OR | |
| Nurse Practitioner | OR | |
| Infectious Disease, Internal Medicine | OR | |
| Thoracic Surgery | OR | |
| Nurse Practitioner | OR | |
| Physician Assistant | WA |
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