NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Allen Reilly, M.D., M.S.

Internal Medicine Physician in Emmitsburg, MD · enumerated 2007.

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

National Provider Identifier

1700900891

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. John Allen Reilly
Credential M.D., M.S.
Sex Male
Practice address Emmitsburg, MD, 21727
Phone (301) 662-1512
Fax (301) 662-5589
Enumeration date Mar 16, 2007
Last updated in NPPES Jun 21, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D54749 (MD) Primary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Reilly practice?
The practice location on file with NPPES is in Emmitsburg, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Reilly?
The National Provider Identifier (NPI) for John Reilly is 1700900891, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-21.