Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thomas Joseph Hirschauer, M.D.
Neurology Physician in Potomac, MD · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679004006
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Thomas Joseph Hirschauer
Credential M.D.
Sex Male
Practice address 11009 Larkmeade Ln, Potomac, MD, 20854
Phone (484) 351-8459
Fax (484) 351-8810
Enumeration date Mar 27, 2017
Last updated in NPPES Mar 31, 2026
Taxonomy & licenses
2084N0600X Clinical Neurophysiology Physician Allopathic & Osteopathic Physicians · License A162104 (CA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Thomas Hirschauer?
The National Provider Identifier (NPI) for Thomas Hirschauer is 1679004006, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thomas Hirschauer practice?
The practice location on file with NPPES is in Potomac, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-31.