Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Marla M Sanzone, PHD

Clinical Psychologist in Annapolis, MD · enumerated 2007.

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

National Provider Identifier

1023135183

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Registry record

Entity type Individual (Type 1)

Name Dr. Marla M Sanzone

Credential PHD

Sex Female

Practice address Annapolis, MD, 21401

Phone (410) 626-1040

Fax (410) 626-1060

Enumeration date Mar 23, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 2981 (MD) 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
GL13	Other	MD	BCBS MARYLAND PIN
B952	Other	MD	BCBS FEDERAL PIN
G113	Other	MD	BCBS GL13 CONFUSION

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 Marla Sanzone practice?

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

What is the NPI number for Marla Sanzone?

The National Provider Identifier (NPI) for Marla Sanzone is 1023135183, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.