DR. NICHOLSON S CHADWICK (MD) – Diagnostic Radiology Physician, NPI 1669736948
Diagnostic Radiology Physician
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NPPES metrics only — not quality of care.
1,218 DIAGNOSTIC RADIOLOGY in MO
Provider Addresses for DR. NICHOLSON S CHADWICK (MD)
220 COMPASS POINT DRIVE
ST CHARLES, MO 63301
Phone: (636) 947-4480
Fax: (636) 947-9860
Type: Mailing
300 FIRST CAPITOL DRIVE
ST CHARLES, MO 63301
Phone: (636) 947-5444
Fax: (636) 947-9860
Type: Location
4525 Harding Pike Ste 102
Nashville, TN 372052145
Phone: (615) 463-3034
Type: Location
300 First Capitol Drive
St Charles, MO 63301
Phone: (636) 947-5444
Fax: (636) 947-9860
Type: Location
1909 Acklen Ave
Nashville, TN 372123713
Phone: (615) 777-9729
Type: Location
337 22nd Ave N
Nashville, TN 372031840
Phone: (615) 327-1500
Type: Location
2009 Mallory Ln Ste 150
Franklin, TN 370672872
Phone: (615) 771-8668
Type: Location
719 Thompson Ln
Nashville, TN 372043609
Phone: (615) 936-3606
Type: Location
3841 GREEN HILLS VILLAGE DR STE 200
NASHVILLE, TN 372152691
Phone:
Type: Mailing
3601 THE VANDERBILT CLINIC
NASHVILLE, TN 372320001
Phone: (615) 322-3000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2021-05-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20180514002790 | I | Diagnostic Radiology | MO | TBD |
| I20210507001380 | I | Diagnostic Radiology | TN | 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 |
|---|---|---|---|---|
| A9585 | Injection, gadobutrol, 0.1 ml | 2,591 | 28 | $0 |
| 73562 | X-ray of knee, 3 views | 530 | 407 | $0 |
| 71045 | X-ray of chest, 1 view | 431 | 345 | $0 |
| 73502 | X-ray of hip, 2-3 views | 401 | 382 | $0 |
| 73030 | X-ray of shoulder, minimum of 2 views | 393 | 347 | $0 |
Insurance plans in this area (ZIP 63301)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| Interventional Radiology, Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL | |
| Diagnostic Radiology | IL |
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