Karen Ballen MD
About this NPIWhat this record shows.
NPI 1821089558 is registered to Karen Ballen MD, a Hematology (Internal Medicine) Physician practising at 3300 Gallows Rd in Falls Church, Virginia. Hematology (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Karen Ballen MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
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.
Other
- 070975MA· Issued by TUFTS HEALTH PLAN
- J12406MA· Issued by BCBS MA
Medicaid
- 3092046MA
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
- I20170220001486Hematopoietic Cell Transplantation and Cellular TherapyVA
- I20191004002940Hematology/OncologyDC
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 Karen Ballen MD accepts. To confirm in-network status with your specific health plan, contact Karen Ballen MD directly at (571) 423-5699.
Frequently asked
Yes. NPI 1821089558 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hematology (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 (571) 423-5699.
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. Karen Ballen MD is a Type-1 individual NPI.