NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John R Glassburn, MD

Medical Oncology Physician in Sewell, NJ · enumerated 2006.

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

National Provider Identifier

1669404984

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John R Glassburn
Credential MD
Sex Male
Practice address 900 Medical Center Dr, Suite 100, Sewell, NJ, 08080
Fax (856) 582-3009
Enumeration date Jul 7, 2006
Last updated in NPPES Jan 6, 2015

Taxonomy & licenses

2085R0203X Therapeutic Radiology Physician Allopathic & Osteopathic Physicians · License MD009725E (PA) Secondary
207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 25MA03345200 (NJ) 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
0007534600002 Medicaid PA -

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

What is the NPI number for John Glassburn?
The National Provider Identifier (NPI) for John Glassburn is 1669404984, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Glassburn practice?
The practice location on file with NPPES is in Sewell, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-06.