DR. DANIEL CHARLES DIFFIN (MD) – Diagnostic Radiology Physician, NPI 1649240821
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
242 DIAGNOSTIC RADIOLOGY in RI
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Provider Addresses for DR. DANIEL CHARLES DIFFIN (MD)
PO BOX 609
LEDYARD, CT 063390609
Phone: (860) 415-9248
Fax: (860) 415-9237
Type: Mailing
Westerly Hospital, 25, Wells Street, Westerly, South County, Rhode Island, 02891, United States
THE WESTERLY HOSPITAL
WESTERLY, RI 02891
Phone: (860) 415-9248
Fax: (860) 415-9237
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: 2012-04-06
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 |
|---|---|---|---|---|
| I20101216000398 | I | Diagnostic Radiology | RI | TBD |
| I20120406000254 | I | Diagnostic Radiology | CT | 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 |
|---|---|---|---|---|
| 77067 | Screening mammography | 825 | 825 | $0 |
| 77063 | Screening 3d breast mammography | 824 | 824 | $0 |
| 76641 | Complete ultrasound scan of 1 breast | 30 | 30 | $0 |
| 71046 | X-ray of chest, 2 views | 11 | 11 | $0 |
Insurance plans in this area (ZIP 06339)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | RI | 71010 | X-ray of chest, 1 view, front | 420 | 290 |
| DIAGNOSTIC RADIOLOGY | RI | 73562 | X-ray of knee, 3 views | 21 | 18 |
| DIAGNOSTIC RADIOLOGY | RI | 74177 | CT scan of abdomen and pelvis with contrast | 174 | 163 |
| DIAGNOSTIC RADIOLOGY | RI | 76942 | Ultrasonic guidance imaging supervision and interpretation for insertion of needle | 19 | 18 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | GA | |
| Diagnostic Radiology | NY | |
| Diagnostic Radiology | NY | |
| Diagnostic Radiology | PA | |
| Diagnostic Radiology | CT | |
| - | CT | |
| Nurse Practitioner | AL | |
| Diagnostic Radiology | PA | |
| - | CT | |
| Diagnostic Radiology | CT |
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