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Dr. Daniel Charles Diffin , MD

Radiology - Diagnostic Radiology • Westerly, RI

Active NPI 1649240821 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

25 Wells Street, The Westerly Hospital
Westerly, RI 02891

Call 8604159248 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

25 Wells Street
The Westerly Hospital

Westerly, RI 02891

Telephone 8604159248
Fax 8604159237
Organization at the Same NPPES Address or Phone
Lmw Healthcare Inc. Facility NPI 1447595368

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Ocean Radiology Associates Pc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

New York University School Of Medicine

Graduation Year

1989

Medicare patients

770 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $49,667 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $49,076 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

37 years (graduated 1989)

CMS Doctors and Clinicians data list 1989 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Diffin has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Diffin as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Westerly and Rhode Island

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 80% of clinicians listed under Radiology - Diagnostic Radiology in Rhode Island (2024, 114 clinicians with data). Median for this group: 4,072. Middle half: 2,246 to 9,844.

Too few clinicians listed under Radiology - Diagnostic Radiology in Westerly have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A lower Medicare-allowed amount than 90% of clinicians listed under Radiology - Diagnostic Radiology in Rhode Island (2024, 114 clinicians with data). Median for this group: $141,215. Middle half: $87,912 to $194,183.

Too few clinicians listed under Radiology - Diagnostic Radiology in Westerly have Medicare Part B data for 2024 to compare.

Paid by Medicare

A lower Medicare payment amount than 85% of clinicians listed under Radiology - Diagnostic Radiology in Rhode Island (2024, 114 clinicians with data). Median for this group: $111,644. Middle half: $66,417 to $157,461.

Too few clinicians listed under Radiology - Diagnostic Radiology in Westerly have Medicare Part B data for 2024 to compare.

5 active clinicians are listed under Radiology - Diagnostic Radiology with a practice address in Westerly, RI (177 in Rhode Island).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
77063 Screening 3d breast mammography
419 419 $102.00 $28.58
77067 Screening mammography
419 419 $119.00 $36.43
77067 Screening mammography
322 322 $119.00 $35.80
77063 Screening 3d breast mammography
321 321 $102.00 $28.11
76641 Complete ultrasound scan of 1 breast
36 36 $234.69 $52.13

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Radiology - Diagnostic Radiology Primary Specialty

NUCC Taxonomy Code: 2085R0202X

License # reported to NPPES RI MD10260

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Rhode Island State Medical Licensing Board.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
7008117 (RI)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - DIAGNOSTIC RADIOLOGY

Medicare Enrollment ID

I20120406000254

Enrollment State Jurisdiction

CT

PECOS Control ID

1355425497

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Ocean Radiology Associates Pc

25 Wells St, Westerly, RI 028912922

Phone: 8604420711

Ocean Radiology Associates Pc

52 Hazelnut Hill Rd, Groton, CT 063403268

Phone: 8604420711

Ocean Radiology Associates Pc

196 Waterford Pkwy S, Waterford, CT 063851234

Phone: 8604420711

Ocean Radiology Associates Pc

365 Montauk Ave, New London, CT 063204700

Phone: 8604420711

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
Dr. Jay Colby , MD

Radiology - Diagnostic Radiology

NPI 1659356533

Doctor of Medicine (M.D.)

Dr. Michael Niles , MD

Radiology - Diagnostic Radiology

NPI 1598745986

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

11 Historical Events
âś…
NPI Profile Active November 29, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location November 29, 2017

Registered at 25 WELLS STREET, THE WESTERLY HOSPITAL, WESTERLY, RI 02891 (Tel: 8604159248)

📍
Updated Business Mailing Address November 29, 2017

Registered at PO BOX 609, LEDYARD, CT 063390609 (Tel: 8604159248)

👤
Provider Name / Credentials Updated November 29, 2017

Recorded as DANIEL DIFFIN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 29, 2017

Radiology (license number reported to NPPES: RI MD10260)

âś…
NPI Profile Active July 08, 2011

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) July 08, 2011

Registered at 25 WELLS STREET, THE WESTERLY HOSPITAL, WESTERLY, RI 02891 (Tel: 8604159248)

📍
Business Mailing Address (Initial Record) July 08, 2011

Registered at PO BOX 609, LEDYARD, CT 063390609 (Tel: 8604159248)

👤
Provider Name / Credentials (Initial Record) July 08, 2011

Recorded as DANIEL DIFFIN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2011

Radiology (license number reported to NPPES: RI MD10260)

🟢
Initial NPI Registration & Enumeration January 23, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1649240821
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 23, 2006
Last Update: November 29, 2017
Sole Proprietor: No

Other Radiology - Diagnostic Radiology Specialists in Westerly

Healthcare providers in Westerly

Mailing Address

Po Box 609

Ledyard, CT 063390609

Phone: 8604159248

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.