Dr. Daniel Horn MD
About this NPIWhat this record shows.
NPI 1780903971 is registered to Dr. Daniel Horn MD, a Internal Medicine practising at 221 Crescent St Ste 202 in Waltham, Massachusetts. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. Daniel Horn MD has been enumerated in the National Provider Identifier (NPI) registry since 2010.
Your brand here.
Medicare enrollment
This provider holds 14 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
- I20130701000464Internal MedicineMA
- I20240510003395Internal MedicinePA
- I20240515000756Internal MedicineTX
- I20240515001187Internal MedicineCO
- I20240516003076Internal MedicineTN
- I20240516003234Internal MedicineAL
- I20240520002429Internal MedicineFL
- I20240521003206Internal MedicineHI
- I20240521003442Internal MedicineAZ
- I20240522000427Internal MedicineIL
- I20240522001987Internal MedicineSC
- I20240530002374Internal MedicineOH
- I20240619001819Internal MedicineOR
- I20240829001017Internal MedicineNC
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 Dr. Daniel Horn MD accepts. To confirm in-network status with your specific health plan, contact Dr. Daniel Horn MD directly at (866) 849-0692.
Frequently asked
Yes. NPI 1780903971 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 (866) 849-0692.
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. Dr. Daniel Horn MD is a Type-1 individual NPI.