Timothy S Chen, M.D.
Timothy S Chen is a Diagnostic Radiology Physician provider (Radiology) practicing in Appleton, WI, registered in the NPPES registry with NPI 1841234937 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1841234937 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Timothy S Chen |
| Credential | M.D. |
| Sex | Male |
| Practice address | 4321 W COLLEGE AVE, STE 300, Appleton, WI, 54914 |
| Phone | 9207395642 |
| Fax | 9209680259 |
| Enumeration date | 2006-06-16 |
| Last updated in NPPES | 2012-01-11 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician | Primary | 48268 | WI |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 34655900 | Medicaid | WI | — |
Copy-ready billing details
Provider: Timothy Chen, M.D. NPI: 1841234937 Taxonomy: 2085R0202X (Diagnostic Radiology Physician) Address: 4321 W COLLEGE AVE, STE 300, Appleton, WI, 54914
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1558614925 | Prn Health Services, Inc. | Organization | Nursing Care Agency | Appleton, WI |
| 1730680539 | Badger Iom, LLC | Organization | Clinical Neurophysiology Physician | Appleton, WI |
| 1144858895 | Venvisor Health Wisconsin LLC | Organization | Nurse Practitioner | Appleton, WI |
| 1629683487 | Central Orthopedic Network, LLC | Organization | Durable Medical Equipment & Medical Supplies | Appleton, WI |
| 1528890043 | Progress Path Aba Corp | Organization | Behavior Analyst | Appleton, WI |
Verify this record
Cross-check NPI 1841234937 against the authoritative CMS record: view Timothy S Chen on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2012-01-11.