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Dr. Adam Joseph Maier, DO

Infectious Disease Physician in Bethesda, MD · enumerated 2019.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1003378696

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Registry record

Entity type Individual (Type 1)
Name Dr. Adam Joseph Maier
Credential DO
Sex Male
Practice address 8901 Wisconsin Ave, Bethesda, MD, 20889
Phone (301) 295-4000
Fax (301) 319-2172
Enumeration date Apr 2, 2019
Last updated in NPPES Apr 1, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 2232 (NE) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 2232 (NE) Primary
171000000X Military Health Care Provider Other Service Providers Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

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Frequently asked questions

What is the NPI number for Adam Maier?
The National Provider Identifier (NPI) for Adam Maier is 1003378696, a Type 1 (individual) record in the CMS NPPES registry.
Where does Adam Maier practice?
The practice location on file with NPPES is in Bethesda, MD. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-01.