Mr. John Dull Aas, Bs, Nbc, Bc-His
About this NPIWhat this record shows.
NPI 1578807897 is registered to Mr. John Dull Aas, Bs, Nbc, Bc-His, a Hearing Instrument Specialist practising at 1816 S West Ave in Freeport, Illinois. Hearing Instrument Specialist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mr. John Dull Aas, Bs, Nbc, Bc-His has been enumerated in the National Provider Identifier (NPI) registry since 2012.
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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 Mr. John Dull Aas, Bs, Nbc, Bc-His accepts. To confirm in-network status with your specific health plan, contact Mr. John Dull Aas, Bs, Nbc, Bc-His directly at (815) 233-2535.
Frequently asked
Yes. NPI 1578807897 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hearing Instrument Specialist 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 (815) 233-2535.
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. Mr. John Dull Aas, Bs, Nbc, Bc-His is a Type-1 individual NPI.