Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles L Spencer, MD

Geriatric Medicine (Internal Medicine) Physician in Philadelphia, PA · enumerated 2006 · practices at University of Penn - Medical Group.

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

National Provider Identifier

1144263450

Verified

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Registry record

Entity type Individual (Type 1)

Name Charles L Spencer

Credential MD

Sex Male

Practice address 3615 Chestnut St, Ralston Penn Center, Philadelphia, PA, 19104

Phone (215) 662-2746

Fax (215) 349-5648

Enumeration date Jun 14, 2006

Last updated in NPPES May 23, 2012

Taxonomy & licenses

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD055259L (PA) 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
0015451020004	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 Charles Spencer?

The National Provider Identifier (NPI) for Charles Spencer is 1144263450, a Type 1 (individual) record in the CMS NPPES registry.

Where does Charles Spencer practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-23.