Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Carolyn Marie Gustin, COTA/L

Occupational Therapy Assistant in Camp Springs, MD · enumerated 2013.

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

National Provider Identifier

1720421340

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Registry record

Entity type Individual (Type 1)

Name Ms. Carolyn Marie Gustin

Credential COTA/L

Sex Female

Practice address 5801 Allentown Road, Suite 410, Camp Springs, MD, 20746

Phone (301) 238-4788

Fax (301) 298-5442

Enumeration date Apr 12, 2013

Last updated in NPPES Nov 25, 2022

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 100000251 (DC) Secondary

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OTA 13076 (FL) Secondary

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License A02011 (MD) Primary

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

How do I verify Carolyn Gustin's NPI record?

Cross-check NPI 1720421340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1720421340 active?

Yes, as of the latest NPPES snapshot, NPI 1720421340 is active (record last updated 2022-11-25).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-25.