Dr. Ivan Lowenthal M.D.
About this NPIWhat this record shows.
NPI 1043245889 is registered to Dr. Ivan Lowenthal M.D., a Medical Oncology Physician practising at 633 Gov Carlos Camacho Rd., Ste B5 in Tamuning, Guam. Medical Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Ivan Lowenthal M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
Other
- 18789CT· Issued by CT. LICENSE
- M-1925GU· Issued by GUAM LICENSE
- 06-1088532· Issued by TAX ID #
- 1683CT· Issued by CT CONTROLLED SUBSTANCE
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
- I20110112000834Medical OncologyCT
- I20161128001925Medical OncologyMA
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. Ivan Lowenthal M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Ivan Lowenthal M.D. directly at (671) 647-4656.
Frequently asked
Yes. NPI 1043245889 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Medical Oncology 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 (671) 647-4656.
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. Ivan Lowenthal M.D. is a Type-1 individual NPI.