MEGAN M GAU (MD) – Diagnostic Radiology Physician, NPI 1457383796
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,218 DIAGNOSTIC RADIOLOGY in MO
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Provider Addresses for MEGAN M GAU (MD)
502 EARTH CITY PLAZA EXPRESSWAY
SUITE 121
EARTH CITY, MO 63045
Phone: (314) 770-2133
Fax: (314) 770-2154
Type: Mailing
DePaul Health Center, 12303, DePaul Drive, Natural Bridge Junction, Bridgeton, Saint Louis County, Missouri, 63044, United States
DEPAUL HEALTH CENTER
BRIDGETON, MO 63044
Phone: (314) 344-6000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $256.
Total Amount is formed as General ($256) + Research ($0) + Ownership ($0) = $256.
Last reported payment date: 2024-11-07 • Largest payer in this snapshot: Ethicon US, LLC ($132).
Total Amount
$256
General + Research + Ownership
Payments
5
Total payment records
General Amount
$256
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Ethicon US, LLC | $132 |
| GE HealthCare | $110 |
| Bard Peripheral Vascular, Inc. | $14 |
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: 2005-07-18
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 |
|---|---|---|---|---|
| I20050718000714 | I | Diagnostic Radiology | 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 |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 1,576 | 1,133 | $0 |
| 77067 | Screening mammography | 1,211 | 1,211 | $0 |
| 77063 | Screening 3d breast mammography | 1,167 | 1,167 | $0 |
| 71046 | X-ray of chest, 2 views | 781 | 727 | $0 |
| 77080 | Dxa bone density measurement of hip, pelvis, spine | 446 | 446 | $0 |
Insurance plans in this area (ZIP 63045)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | MO | 71250 | CT scan chest | 136 | 129 |
| DIAGNOSTIC RADIOLOGY | MO | 73630 | X-ray of foot, minimum of 3 views | 56 | 50 |
| DIAGNOSTIC RADIOLOGY | MO | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 25 | 25 |
| DIAGNOSTIC RADIOLOGY | MO | 78815 | Nuclear medicine study with CT imaging skull base to mid-thigh | 43 | 43 |
| DIAGNOSTIC RADIOLOGY | MO | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 21 | 21 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | MO | |
| Diagnostic Radiology | VA | |
| Diagnostic Radiology | MO | |
| Diagnostic Radiology | MO | |
| Diagnostic Radiology | MO | |
| General Surgery, Diagnostic Radiology | MO | |
| Diagnostic Radiology | MO | |
| Diagnostic Radiology | MO | |
| Diagnostic Radiology | MO | |
| Diagnostic Radiology, Interventional Radiology | PA |
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