Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carol L Armstrong, PH.D., ABPN

Clinical Neuropsychologist in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1407879430

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Registry record

Entity type Individual (Type 1)

Name Dr. Carol L Armstrong

Credential PH.D., ABPN

Sex Female

Practice address 100 N 20th St, Philadelphia, PA, 19103

Phone (215) 556-7242

Enumeration date Jul 25, 2006

Last updated in NPPES Dec 5, 2008

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License PS004399L (PA) Secondary

2080P0207X Pediatric Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License PS004399L (PA) Secondary

2084P0005X Neurodevelopmental Disabilities Physician Allopathic & Osteopathic Physicians · License PS004399L (PA) Secondary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License PS004399L (PA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
001709644	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

How do I verify Carol Armstrong's NPI record?

Cross-check NPI 1407879430 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1407879430 active?

Yes, as of the latest NPPES snapshot, NPI 1407879430 is active (record last updated 2008-12-05).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-05.