Thomas Castillo DO
About this NPIWhat this record shows.
NPI 1700805454 is registered to Thomas Castillo DO, a Ophthalmology Physician practising at 240 Corporate Drive in Beaver Dam, Wisconsin. Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Thomas Castillo DO has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 391156156· Issued by TAX ID
- 180034885WI· Issued by RAIL ROAD MEDICARE
- 31662· Issued by NETWORK HEALTH PLAN
- 11995· Issued by DEAN CARE HMO
- 1024501· Issued by PHYSICIANS PLUS HMO
- 39115615613· Issued by UNITY HMO
- WI0113· Issued by JOHN DEERE HEALTH PLAN
Medicaid
- 30088300WI
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20060316000608OphthalmologyWI
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Thomas Castillo DO accepts. To confirm in-network status with your specific health plan, contact Thomas Castillo DO directly at (920) 887-1151.
Frequently asked
Yes. NPI 1700805454 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (920) 887-1151.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Thomas Castillo DO is a Type-1 individual NPI.