NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Garrett Reilly, M.D., PH.D.

Hematology & Oncology Physician in Olney, MD · enumerated 2005 · practices at Cattail River Hematology & Oncology, Inc..

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

National Provider Identifier

1053392100

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Joseph Garrett Reilly
Credential M.D., PH.D.
Sex Male
Practice address 3418 Olandwood Ct, Suite 111, Olney, MD, 20832
Fax (301) 774-8199
Enumeration date Nov 7, 2005
Last updated in NPPES Oct 16, 2012

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License D-39190 (MD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
07701 Medicaid MD -

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

How do I verify Joseph Reilly's NPI record?
Cross-check NPI 1053392100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1053392100 active?
Yes, as of the latest NPPES snapshot, NPI 1053392100 is active (record last updated 2012-10-16).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-16.