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About this NPIWhat this record shows.
NPI 1225078421 is registered to Leonard Mermel DO, a Infectious Disease practising at 110 Lockwood St, Suite 116 in Providence, Rhode Island. Infectious Disease is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Leonard Mermel DO has been enumerated in the National Provider Identifier (NPI) registry since 2006.
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 Leonard Mermel DO accepts. To confirm in-network status with your specific health plan, contact Leonard Mermel DO directly at (401) 793-2985.
Frequently asked
Yes. NPI 1225078421 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Infectious Disease 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 (401) 793-2985.
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. Leonard Mermel DO is a Type-1 individual NPI.
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