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Dr. Timothy S Chen , MD

Radiology - Diagnostic Radiology • Appleton, WI

Active NPI 1841234937 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

4321 W College Ave, Ste 300
Appleton, WI 549143966

Call 9207395642 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

4321 W College Ave
Ste 300

Appleton, WI 549143966

Telephone 9207395642
Fax 9209680259
Organization at the Same NPPES Address or Phone
Prn Health Services, Inc. Facility NPI 1558614925

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 4 distinct group names: Medical X-Ray Consultants Ltd; Premier Radiology Wisconsin Llc; Radiology Associates Of Appleton Sc and 1 more. 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

Indiana University School Of Medicine

Graduation Year

1999

Medicare patients

1,151 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 $37,438 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 $27,662 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

27 years (graduated 1999)

CMS Doctors and Clinicians data list 1999 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. Chen 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. Chen 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 Appleton and Wisconsin

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 70% of clinicians listed under Radiology - Diagnostic Radiology in Wisconsin (2024, 645 clinicians with data). Median for this group: 2,041. Middle half: 1,063 to 4,066.

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

Medicare-allowed amount

A lower Medicare-allowed amount than 75% of clinicians listed under Radiology - Diagnostic Radiology in Wisconsin (2024, 645 clinicians with data). Median for this group: $65,184. Middle half: $41,352 to $103,038.

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

Paid by Medicare

A lower Medicare payment amount than 75% of clinicians listed under Radiology - Diagnostic Radiology in Wisconsin (2024, 645 clinicians with data). Median for this group: $52,288. Middle half: $32,070 to $80,473.

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

16 active clinicians are listed under Radiology - Diagnostic Radiology with a practice address in Appleton, WI (1,005 in Wisconsin).

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

Telehealth indicator in Appleton

0% of these 16 clinicians have the CMS telehealth indicator.

43.8% of these 16 clinicians are listed by CMS as accepting Medicare assignment.

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
71045 X-ray of chest, 1 view
268 235 $153.00 $7.85
74177 Ct scan of abdomen and pelvis with contrast
107 104 $1471.00 $80.45
71046 X-ray of chest, 2 views
99 95 $178.00 $9.81
70450 Ct scan head or brain without contrast
88 85 $554.00 $36.50
74176 Ct scan of abdomen and pelvis without contrast
53 53 $1406.00 $77.01
74018 X-ray of abdomen, 1 view
49 44 $153.00 $8.18
71275 Ct scan of blood vessels of chest with contrast
45 42 $1448.00 $79.41
71260 Ct scan of chest with contrast
43 43 $776.00 $49.63
73630 X-ray of foot, minimum of 3 views
42 39 $121.00 $7.55
73030 X-ray of shoulder, minimum of 2 views
41 39 $146.00 $8.50
72100 X-ray of lower and sacral spine, 2-3 views
40 40 $174.00 $10.13
72125 Ct scan of upper spine without contrast
37 37 $688.00 $43.55
73502 X-ray of hip, 2-3 views
34 34 $212.00 $9.94
73721 Mri scan of leg joint without contrast
30 29 $862.00 $59.81
71250 Ct scan of chest without contrast
27 27 $696.00 $47.53
73130 X-ray of hand, minimum of 3 views
25 21 $128.00 $7.86
73564 X-ray of knee, 4 or more views
25 22 $174.00 $10.45
73221 Mri scan of arm joint without contrast
23 23 $862.00 $59.95
73200 Ct scan of arm without contrast
22 21 $607.00 $44.17
72170 X-ray of pelvis, 1-2 views
21 21 $133.00 $7.85
73560 X-ray of knee, 1-2 views
19 18 $141.00 $7.94
73610 X-ray of ankle, minimum of 3 views
19 19 $128.00 $7.86
93971 Ultrasound study of one arm or leg veins with compression and maneuvers
19 19 $397.00 $19.40
72040 X-ray of upper spine, 2-3 views
17 15 $174.00 $10.11
76770 Complete ultrasound scan behind abdominal cavity
17 17 $516.00 $32.67

(top 25 shown)

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 WI 48268

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: Wisconsin Department of Safety and Professional Services.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
34655900 (WI)

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

I20260514001786

Enrollment State Jurisdiction

MI

PECOS Control ID

3173568979

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

Medical X-Ray Consultants Ltd

201 W Northland Ave, Appleton, WI 549112600

Phone: 9209960724

Radiology Associates Of Appleton Sc

3916 N Intertech Court, Appleton, WI 549136956

Phone: 9203581520

Radiology Associates Of Appleton Sc

225 Memorial Dr, Berlin, WI 549231243

Phone: 9203581520

Radiology Associates Of Appleton Sc

100 County Rd B, Shawano, WI 541667072

Phone: 9203581520

Medical X-Ray Consultants Ltd

900 W Clairemont Ave, Eau Claire, WI 547016122

Phone: 7158581777

Tomah Memorial Hospital Inc

501 Gopher Dr, Tomah, WI 546604513

Phone: 6083722181

Medical X-Ray Consultants Ltd

4130 State Rd, Eau Claire, WI 547017806

Phone: 7158309507

Medical X-Ray Consultants Ltd

1120 Pine St, Stanley, WI 547681297

Phone: 7156445571

Radiology Associates Of Appleton Sc

1818 N Meade St, Appleton, WI 549113454

Phone: 9203581520

Radiology Associates Of Appleton Sc

2400 E Capitol Dr, Appleton, WI 549118728

Phone: 9203581520

Premier Radiology Wisconsin Llc

10180 Washington Ave, Mount Pleasant, WI 531771604

Phone: 4149737830

Clinicians Sharing This Practice Address or Phone

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

10 listed
Dr. Stephen Bejvan , MD

Radiology - Diagnostic Radiology

NPI 1356379762

Doctor of Medicine (M.D.)

Dr. Timothy Bernauer , MD

Radiology - Diagnostic Radiology

NPI 1609815265

Doctor of Medicine (M.D.)

Dr. Keyvan Gharabeighlou , DO

Radiology - Diagnostic Radiology

NPI 1376588202

Doctor of Osteopathic Medicine (D.O.)

Dr. Brian Hebl , MD

Radiology - Diagnostic Radiology

NPI 1578599684

Doctor of Medicine (M.D.)

Dr. John Iglar , MD

Radiology - Diagnostic Radiology

NPI 1760419519

Doctor of Medicine (M.D.)

Dr. Gregory Knudson , MD

Radiology - Diagnostic Radiology

NPI 1457395519

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated June 16, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1841234937
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 16, 2006
Last Update: January 11, 2012
Sole Proprietor: No

Other Radiology - Diagnostic Radiology Specialists in Appleton

All Radiology - Diagnostic Radiology Specialists in Appleton

Mailing Address

Po Box 117

Appleton, WI 549120117

Phone: 9207395642

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.