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About this NPIWhat this record shows.
NPI 1891120101 is registered to Diana Guzman R.N., a Registered Nurse practising at 1542 W Devon Ave in Chicago, Illinois. Registered Nurse is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Diana Guzman R.N. has been enumerated in the National Provider Identifier (NPI) registry since 2013.
Provider type
Individual (Type 1)
Status
Active
Enumerated
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The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Diana Guzman R.N. accepts. To confirm in-network status with your specific health plan, contact Diana Guzman R.N. directly at (773) 465-4600.
Frequently asked
Yes. NPI 1891120101 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Registered Nurse 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 (773) 465-4600.
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. Diana Guzman R.N. is a Type-1 individual NPI.
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