James C Opitz, MD
James C Opitz is a Pediatrics Physician provider (Pediatrics) practicing in Marshfield, WI, registered in the NPPES registry with NPI 1659474286 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659474286 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | James C Opitz |
| Credential | MD |
| Sex | Male |
| Practice address | M504 CHERRY ST, Marshfield, WI, 54449 |
| Phone | 7153872183 |
| Enumeration date | 2006-09-07 |
| Last updated in NPPES | 2011-08-24 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208000000X | Pediatrics Physician | Primary | 17014 | 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 |
|---|---|---|---|
| 31253400 | Medicaid | WI | — |
Copy-ready billing details
Provider: James Opitz, MD NPI: 1659474286 Taxonomy: 208000000X (Pediatrics Physician) Address: M504 CHERRY ST, Marshfield, WI, 54449
Verify this record
Cross-check NPI 1659474286 against the authoritative CMS record: view James C Opitz 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 2026-07-11. Provider record last updated 2011-08-24.