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

Dr. Mary Kay Aebly-Ryan, PSY.D.

Psychologist in Sleepy Hollow, NY · enumerated 2007 · practices at Sleepy Hollow Acupuncture LLC.

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

National Provider Identifier

1023167483

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Kay Aebly-Ryan

Credential PSY.D.

Sex Female

Practice address Sleepy Hollow, NY, 10591

Phone (914) 432-7752

Enumeration date Jan 8, 2007

Last updated in NPPES Feb 1, 2011

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

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 012266-1 (NY) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
P2045984	Other	NY	OXFORD PROVIDER ID

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 Mary Aebly-Ryan practice?

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

What is the NPI number for Mary Aebly-Ryan?

The National Provider Identifier (NPI) for Mary Aebly-Ryan is 1023167483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-01.