NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles Master, M.D.

Diagnostic Radiology Physician in Flushing, NY · enumerated 2005.

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

National Provider Identifier

1528052123

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Charles Master
Credential M.D.
Sex Male
Practice address 4310 Kissena Blvd, Flushing, NY, 11355
Phone (860) 792-1777
Enumeration date Sep 9, 2005
Last updated in NPPES May 11, 2015

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 211094-1 (NY) Primary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 211094 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Charles Master practice?
The practice location on file with NPPES is in Flushing, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Charles Master?
The National Provider Identifier (NPI) for Charles Master is 1528052123, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-11.