DR. JUSTIN T MAO (MD) – Clinical Cardiac Electrophysiology Physician, NPI 1427052273
Clinical Cardiac Electrophysiology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
214 CARDIAC ELECTROPHYSIOLOGY in IL
Provider Addresses for DR. JUSTIN T MAO (MD)
PO BOX 1567
ROCKFORD, IL 611100067
Phone: (779) 696-7150
Fax: (815) 490-5898
Type: Mailing
1340 Charles St Ste 300
Rockford, IL 611042200
Phone: (815) 490-5888
Fax: (815) 490-5898
Type: Location
29373 NETWORK PL
CHICAGO, IL 606731293
Phone: (847) 390-5900
Type: Mailing
3825 HIGHLAND AVE FL TOWER24
DOWNERS GROVE, IL 605151552
Phone: (630) 719-4799
Fax: (630) 963-7420
Type: Location
Charles Street, Rockford, Winnebago County, Illinois, 61108, United States
ROCKFORD, IL 611042200
Phone: (815) 490-5888
Fax: (815) 490-5898
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 39 Open Payments records for all available years, with a total value of $4,532.
Total Amount is formed as General ($4,532) + Research ($0) + Ownership ($0) = $4,532.
Last reported payment date: 2024-11-29 • Largest payer in this snapshot: Impulse Dynamics (USA) Inc. ($3,464).
Total Amount
$4,532
General + Research + Ownership
Payments
39
Total payment records
General Amount
$4,532
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Impulse Dynamics (USA) Inc. | $3,464 |
| Abbott Laboratories | $627 |
| Boston Scientific Corporation | $207 |
| Penumbra, Inc. | $104 |
| ABIOMED | $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: 2010-09-22
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 |
|---|---|---|---|---|
| I20100922000950 | I | Cardiac Electrophysiology | IL | 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 |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 502 | 382 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 394 | 309 | $0 |
| 93294 | Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 352 | 268 | $0 |
| 93280 | Programming of dual lead pacemaker system | 165 | 134 | $0 |
| 93295 | Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | 146 | 107 | $0 |
Insurance plans in this area (ZIP 61110)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIAC ELECTROPHYSIOLOGY | IL | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 122 | 108 |
| CARDIAC ELECTROPHYSIOLOGY | IL | 93280 | Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report | 25 | 24 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| A N E S T H E S I O L O G Y | IL | |
| - | MN | |
| - | IL | |
| - | IL | |
| Rheumatology, Internal Medicine | IL | |
| - | IL | |
| Internal Medicine | IL | |
| P S Y C H I A T R Y | IL | |
| - | IL |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.