Dr. Nathan Nielsen M.D.
About this NPIWhat this record shows.
NPI 1780869743 is registered to Dr. Nathan Nielsen M.D., a Critical Care Medicine (Internal Medicine) Physician practising at Msc10-5550 1 University Of New Mexico in Albuquerque, New Mexico. Critical Care Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Nathan Nielsen M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2008.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Source: NPPES public registry.
Medicare enrollment
This provider holds 2 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
- I20091030000123Critical Care (Intensivists)LA
- I20191209000666Internal MedicineNM
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. Nathan Nielsen M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Nathan Nielsen M.D. directly at (505) 272-4751.
Frequently asked
Yes. NPI 1780869743 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Critical Care 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 (505) 272-4751.
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. Nathan Nielsen M.D. is a Type-1 individual NPI.