Mark Castellaw, MD
Quick Facts
NPI Validation Status: Verified
Provider Overview
MARK CASTELLAW, MD is a Internal Medicine provider based in Germantown, TN who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.
Provider Details
Practice Location
Specialties & Licenses
Mailing Address
How to Use This NPI
For Insurance Billing
Use NPI 1114928793 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.
For Credentialing
Reference NPI 1114928793for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.
For Patients
Share NPI 1114928793 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.
About Internal Medicine
Internal Medicine physicians (internists) specialize in the prevention, diagnosis, and nonsurgical treatment of adult illnesses, managing complex chronic conditions and multi-system diseases.
Similar Providers in Germantown
Iris Bailey, MD
📍 Germantown, TN 38139-6312
Chris Gillespie, MD
📍 Germantown, TN 38139-6411
Dana Wright, MD
📍 Germantown, TN 38138-1775
Richard Jordan, MD
📍 Germantown, TN 38138-1775
Steven Overby, MD
📍 Germantown, TN 38138-1775
Lora Pomykala, MD
📍 Germantown, TN 38138-1775
Other Healthcare Providers in Germantown
Jennifer Boals, MD
RadiologyRobert Cockroft, MD
RadiologyRichard Bates, MD
RadiologyDeepali Bhanot, D.M.D
DentistryMaria Brooks, MD
RadiologyWilliam Graves, MD
RadiologyOther Internal Medicine Providers in Tennessee
People Also Ask
What is Mark Castellaw's NPI number?
Is Mark Castellaw's NPI currently active?
What does Mark Castellaw specialize in?
207R00000X.