Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles H Redfern, M.D.

Hematology & Oncology Physician in San Diego, CA · enumerated 2006.

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

National Provider Identifier

1225007396

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Registry record

Entity type Individual (Type 1)

Name Dr. Charles H Redfern

Credential M.D.

Sex Male

Practice address 3075 Health Center Dr, Suite 102, San Diego, CA, 92123

Phone (858) 637-7888

Fax (858) 637-7887

Enumeration date Mar 14, 2006

Last updated in NPPES Jul 26, 2012

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A52733 (CA) 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

What is the NPI number for Charles Redfern?

The National Provider Identifier (NPI) for Charles Redfern is 1225007396, a Type 1 (individual) record in the CMS NPPES registry.

Where does Charles Redfern practice?

The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-26.