Mark Tanenbaum M.D.
About this NPIWhat this record shows.
NPI 1114929247 is registered to Mark Tanenbaum M.D., a Cardiovascular Disease practising at 3580 Joseph Siewick Dr Ste 305 in Fairfax, Virginia. Cardiology is a medical specialty focused on disorders of the heart and blood vessels, including coronary artery disease, heart failure, arrhythmias, and hypertension. Mark Tanenbaum M.D. 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.
Medicaid
Other
- 060035106DC· Issued by RAILROAD MEDICARE DC #
- 060062627VA· Issued by RAILROAD MEDICARE VA #
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
- I20040423000100Cardiovascular Disease (Cardiology)DC
- I20100301000440Cardiovascular Disease (Cardiology)VA
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 Mark Tanenbaum M.D. accepts. To confirm in-network status with your specific health plan, contact Mark Tanenbaum M.D. directly at (703) 648-3266.
Frequently asked
Yes. NPI 1114929247 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Cardiology is a medical specialty focused on disorders of the heart and blood vessels, including coronary artery disease, heart failure, arrhythmias, and hypertension.
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 (703) 648-3266.
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. Mark Tanenbaum M.D. is a Type-1 individual NPI.