Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carol J. Ball, PH.D.

Forensic Psychologist in Arlington, MA · enumerated 2006.

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

National Provider Identifier

1518973536

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Registry record

Entity type Individual (Type 1)

Name Dr. Carol J. Ball

Credential PH.D.

Sex Female

Practice address 22 Mill St, Suite 306, Arlington, MA, 02476

Phone (781) 643-0610

Fax (781) 643-1609

Enumeration date Jul 31, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

103TF0200X Forensic Psychologist Behavioral Health & Social Service Providers · License 4381 (MA) 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
1898108	Medicaid	MA	-
79631	Other	-	CIGNA PROVIDER NUMBER
W04244	Other	MA	BLUE CROSSBLUE SHIELD

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.

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Frequently asked questions

What specialty is Carol Ball?

Carol Ball is registered in NPPES with the primary taxonomy of Forensic Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.