William Heinz M.D.
About this NPIWhat this record shows.
NPI 1164423117 is registered to William Heinz M.D., a Sports Medicine (Internal Medicine) Physician practising at 33 Sewall St in Portland, Maine. Sports Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Heinz M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Your brand here.
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 William Heinz M.D. accepts. To confirm in-network status with your specific health plan, contact William Heinz M.D. directly at (207) 828-2100.
Frequently asked
Yes. NPI 1164423117 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Sports Medicine (Internal Medicine) 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 (207) 828-2100.
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. William Heinz M.D. is a Type-1 individual NPI.