Walter Martin M.D.
About this NPIWhat this record shows.
NPI 1619944600 is registered to Walter Martin M.D., a Internal Medicine practising at 415 Killingworth Rd in Higganum, Connecticut. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Walter Martin M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Medicare enrollment
This provider holds 4 Medicare enrollments 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
- I20150730011500Internal MedicineME
- I20181023001674Internal MedicinePA
- I20190510000926Internal MedicineWI
- I20250923000290Internal MedicineCT
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 Walter Martin M.D. accepts. To confirm in-network status with your specific health plan, contact Walter Martin M.D. directly at (860) 345-8535.
Frequently asked
Yes. NPI 1619944600 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
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 (860) 345-8535.
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. Walter Martin M.D. is a Type-1 individual NPI.